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  • 51. Salman, C. A.
    et al.
    Naqvi, M.
    Thorin, E.
    Yan, Jinyue
    KTH, School of Chemical Science and Engineering (CHE), Chemical Engineering and Technology, Energy Processes. Malardalens hogskola, Sweden.
    Impact of retrofitting existing combined heat and power plant with polygeneration of biomethane: A comparative techno-economic analysis of integrating different gasifiers2017In: Energy Conversion and Management, ISSN 0196-8904, E-ISSN 1879-2227, Vol. 152, p. 250-265Article in journal (Refereed)
    Abstract [en]

    It is vital to identify and evaluate the optimal gasifier configuration that could be integrated with existing or new combined heat and power (CHP) plants to maximize the utilization of boiler operating capacity during off-peak hours with minimal effect on the boiler performance. This study aims to identify technically and economically most suitable gasification configuration and the reasonable operational limits of a CHP plant when integrated with different types of gasifiers. The selected gasifiers for the study are, (i) indirectly heated dual fluidized bed gasifier (DFBG), (ii) directly heated circulating fluidized bed gasifier (CFBG), and (iii) entrained flow gasifier (EFG). The gasifiers are selected on their ability to produce high-quality syngas from waste refused derived fuel (RDF). The syngas from the gasifiers is utilized to produce biomethane, whereas the heat and power from the CHP plant are consumed to run the gasification process. A detailed techno-economic analysis is performed using both flexible capacity and fixed capacity gasifiers and integrated with the CHP plant at full load. The results reveal that the integration leads to increase in operating time of the boiler for all gasifier configurations. The indirectly heated DFBG shows the largest biomethane production with less impact on the district heat and power production. Extra heat is available for biomethane production when the district heat and biomethane are prioritized, and the electric power is considered as a secondary product. Furthermore, the economic indicators reflect considerable dependency of integrated gasification performance on variable prices of waste biomass and biomethane.

  • 52. Salman, C. A.
    et al.
    Schwede, S.
    Naqvi, M.
    Thorin, E.
    Yan, Jinyue
    KTH, School of Engineering Sciences in Chemistry, Biotechnology and Health (CBH), Chemical Engineering, Energy Processes. School of Business, Society and Engineering, Mälardalen University.
    Synergistic combination of pyrolysis, anaerobic digestion, and CHP plants.2019In: Innovative Solutions for Energy Transitions, Elsevier, 2019, Vol. 158, p. 1323-1329Conference paper (Refereed)
    Abstract [en]

    The anaerobic digestion of biodegradable fraction of municipal solid waste (MSW) is a widely used process for biogas production. However, the biodegradable fraction of MSW also contains lignocellulosic waste which hinders the biogas production if added to the digester in higher quantity. So it needs to be separated from biodegradable waste and sent for alternate treatment, e.g., incineration, landfilling or compositing. Pyrolysis of lignocellulosic waste to produce biochar, syngas, and bio oil is an alternate treatment to consider. Furthermore, there is a reported correlation between the addition of biochar in the digester and higher biogas production. Previously, we coupled the pyrolysis of lignocellulosic waste with anaerobic digestion plant. Pyrolysis produces the biochar and vapors. Biochar was added in the digester to enhance the biomethane production. The vapors produced in the pyrolysis process were converted to biomethane through the catalytic methanation process. The combination gives the overall efficiency of 67%. In this work, we modified the process concept to increase the integration level of these processes. The main issue with the pyrolysis process is its heat required to operate, while some of its downstream processes also generate excess heat. In this study, the pyrolysis of lignocellulosic waste is integrated with an operating combined heat and power (CHP) plant, by using its existing infrastructure for heat transport among different pyrolysis operations. The combustor of the CHP plant provides the heat for drying and pyrolysis while the excess heat is transferred back to the combustor. The biochar produced from pyrolysis is transported back to the digester as an adsorbent. The process simulation results show that the combined efficiency of pyrolysis with CHP plant reached 80%. If the biochar is sent back to the anaerobic digester, the synergetic efficiency of all three processes, i.e., pyrolysis-CHP and anaerobic digestion was obtained at 79.7% as compared with the 67% efficiency when the pyrolysis was only integrated with the anaerobic digestion process.

  • 53. Salman, C. A.
    et al.
    Schwede, S.
    Thorin, E.
    Li, H.
    Yan, Jinyue
    KTH, School of Engineering Sciences in Chemistry, Biotechnology and Health (CBH), Chemical Engineering, Energy Processes. School of Business, Society, and Engineering, Mälardalen University, 883, SE-72 123, Sweden.
    Identification of thermochemical pathways for the energy and nutrient recovery from digested sludge in wastewater treatment plants2019In: Innovative Solutions for Energy Transitions, Elsevier, 2019, Vol. 158, p. 1317-1322Conference paper (Refereed)
    Abstract [en]

    There are several restrictions and limitations on the emissions and disposal of materials and pollutants related to wastewater treatment plants (WWTPs) emphasizing improvement of current processes and development of new methods. Process integration is one way to use all fractions of waste for improved efficiency. WWTPs produces sludge which is usually anaerobically digested to produce biogas and a byproduct called digestate. Digestate is an organic material that contains macro and micronutrients such as nitrogen, phosphorous, and potassium and also contains heavy metals. Digestate is mainly used for agricultural applications because of the presence of nutrients. However, digestate also contains energy in the form of carbon and hydrogen which can be harnessed through various processes and integrated with nitrogen recovery process. This study aims to recover the energy and nutrients from digestate through thermochemical treatment processes. Combustion, pyrolysis, and gasification are assessed and compared in this work. An ammonia stripping method is assumed to recover nitrogen from digestate. The thermochemical processes are heat integrated with ammonia stripping through modeling and simulation. Results show that almost half of the energy present in digested sludge is required for its drying. Moreover, nitrogen recovery also requires much energy. The combustion and gasification of digested sludge give better results than pyrolysis. The heat integration becomes feasible when the auxiliary biogas is also burned along with products from the thermochemical treatment of sludge.

  • 54. Salman, C. A.
    et al.
    Schwede, S.
    Thorin, E.
    Yan, Jinyue
    KTH, School of Chemical Science and Engineering (CHE), Chemical Engineering and Technology, Energy Processes. Mälardalen University, Sweden.
    Enhancing biomethane production by integrating pyrolysis and anaerobic digestion processes2017In: Applied Energy, ISSN 0306-2619, E-ISSN 1872-9118, Vol. 204, p. 1074-1083Article in journal (Refereed)
    Abstract [en]

    The anaerobic digestion of source-separated organic waste is a mature and increasingly used process for biomethane production. However, the efficient use of different fractions of waste is a big concern in anaerobic digestion plants. This study proposes the use of a new process configuration that couples the anaerobic digestion of biodegradable waste with the pyrolysis of lignocellulosic or green waste. The biochar obtained from pyrolysis was added to a digester as an adsorbent to increase the biomethane content and to support the development of a stable microbial community. In addition, the bio-oil and syngas produced by the pyrolysis process were reformed into syngas and then converted to biomethane via methanation. Modelling and simulations were performed for the proposed novel process. The results showed an approximately 1.2-fold increase in the biomethane volume produced. An overall efficiency of 67% was achieved, whereas the stand-alone anaerobic digestion system had an efficiency of only 52%. The results also indicated a high annual revenue for the integrated process compared to that for an alternative treatment (incineration) of green waste.

  • 55. Salman, C. A.
    et al.
    Schwede, S.
    Thorin, E.
    Yan, Jinyue
    KTH, School of Chemical Science and Engineering (CHE), Chemical Engineering and Technology, Energy Processes. Mälardalen University, Sweden.
    Predictive Modelling and Simulation of Integrated Pyrolysis and Anaerobic Digestion Process2017In: 8th International Conference on Applied Energy, ICAE 2016; Beijing; China; 8 October 2016 through 11 October 2016, Elsevier, 2017, Vol. 105, p. 850-857Conference paper (Refereed)
    Abstract [en]

    Anaerobic co-digestion plant with biodegradable organic feedstock separated from municipal solid waste (MSW) have become a mature technology in past decade. The biogas produced can be upgraded to bio-methane or used in heat and power applications. However, not all the municipal waste fractions such as ligno-cellulose and green waste, are suitable for biodegradation. In this work, the non-biodegradable organic waste named as green waste is investigated as a potential substrate for a bio refinery concept based on combination of pyrolysis and anaerobic digestion. The main aim of the study was to evaluate whether or not the anaerobic digestion and pyrolysis process coupling could be beneficial from an energy and exergy point of view. The simulation results shows that the integration of pyrolysis process gives approximately 59% overall efficiency as compared to the 52% for anaerobic digestion stand-alone process. The results also revealed that the pyrolysis of green waste is more beneficial than green waste incineration for heat and power production.

  • 56. Salman, Chaudhary Awais
    et al.
    Schwede, Sebastian
    Thorin, Eva
    Yan, Jinyue
    KTH, School of Chemical Science and Engineering (CHE), Chemical Engineering and Technology. Mälardalen University, Sweden.
    Process simulation and comparison of biological conversion of syngas and hydrogen in biogas plants2017In: International Conference on Advances In Energy Systems And Environmental Engineering (ASEE17) / [ed] Kaamierczak, B Kutylowska, M Piekarska, K Jouhara, H Danielewicz, J, EDP Sciences, 2017, article id UNSP 00151Conference paper (Refereed)
    Abstract [en]

    Organic waste is a good source of clean energy. However, different fractions of waste have to be utilized efficiently. One way is to find pathways to convert waste into useful products via various available processes (gasification, pyrolysis anaerobic digestion, etc.) and integrate them to increase the combined efficiency of the process. The syngas and hydrogen produced from the thermal conversion of biomass can be upgraded to biomethane via biological methanation. The current study presents the simulation model to predict the amount of biomethane produced by injecting the hydrogen and syngas. Hydrogen injection is modelled both in-situ and ex-situ while for syngas solely the ex-situ case has been studied. The results showed that 85% of the hydrogen conversion was achieved for the ex-situ reactor while 81% conversion rate was achieved for the in-situ reactor. The syngas could be converted completely in the bio-reactor. However, the addition of syngas resulted in an increase of carbon dioxide. Simulation of biomethanation of gas addition showed a biomethane concentration of 87% while for hydrogen addition an increase of 74% and 80% for in-situ and ex-situ addition respectively.

  • 57.
    Shang, Nan
    et al.
    Zhejiang Univ, Coll Elect Engn, Hangzhou 310058, Zhejiang, Peoples R China..
    Lin, You
    Zhejiang Univ, Coll Elect Engn, Hangzhou 310058, Zhejiang, Peoples R China..
    Ding, Yi
    Zhejiang Univ, Coll Elect Engn, Hangzhou 310058, Zhejiang, Peoples R China..
    Ye, Chengjin
    Zhejiang Univ, Coll Elect Engn, Hangzhou 310058, Zhejiang, Peoples R China..
    Yan, Jinyue
    KTH, School of Engineering Sciences in Chemistry, Biotechnology and Health (CBH), Chemical Engineering, Energy Processes.
    Nodal market power assessment of flexible demand resources2019In: Applied Energy, ISSN 0306-2619, E-ISSN 1872-9118, Vol. 235, p. 564-577Article in journal (Refereed)
    Abstract [en]

    With the incorporation of higher shares of intermittent renewable energies (RES), more flexible resources are required in power systems to keep load balance. Under some extreme circumstances, the flexible demand resources (FDRs) may have the potential to dominate and obtain excess benefits, preventing other FDRs from participating in the electricity markets. Therefore, it is of great significance to identify the key FDR market power locations and implement some corresponding regulations. However, the relevant researches in power systems focused on the supply side, rather than the demand side. In this paper, a novel nodal market power analysis method is proposed to evaluate the potential influence of FDRs on electricity markets. Firstly, a multi-state model is established to present the multiple power system operation states including the random failures of system components. Then, the nodal market power assessment model is established under each specific state and new indices are proposed to evaluate the nodal market power of FDRs quantitatively. Furthermore, the key FDR nodes in demand side with stronger power in capturing excess revenue are identified. The 24-bus IEEE Reliability Test System is modified to demonstrate the feasibility of the proposed method. The numerical results of the proposed method are capable to display the existence of market power in demand side, and provide some valuable guidance for classification and operation of electricity markets.

  • 58. Si, Pengfei
    et al.
    Feng, Ya
    Lv, Yuexia
    Rong, Xiangyang
    Pan, Yungang
    Liu, Xichen
    Yan, Jinyue
    KTH, School of Chemical Science and Engineering (CHE), Chemical Engineering and Technology, Energy Processes.
    An optimization method applied to active solar energy systems for buildings in cold plateau areas - The case of Lhasa2017In: Applied Energy, ISSN 0306-2619, E-ISSN 1872-9118, Vol. 194, p. 487-498Article in journal (Refereed)
    Abstract [en]

    Solar energy for building applications may significantly reduce the conventional energy consumption and the related carbon dioxide emissions. The comprehensive utilization of integrated solar thermal and photovoltaic systems is undoubtedly a subject of interest. In the present paper, an optimization model was proposed for integrated solar energy systems, aiming to figure out the optimal utilization and economical efficiency of solar energy resources for buildings in cold plateau areas. A case study in Lhasa city was further carried out in order to evaluate the energy and economic performance of the developed model. The results indicated that solar photovoltaic systems are preferred than solar thermal systems for typical office buildings in cold plateau areas with rich solar energy resources. In addition, a sensitivity analysis was performed to investigate the influences of financial subsidies and commercial electricity prices on the system economical performance. Furthermore, life cycle assessment was conducted to compare and analyze the performances of an optimization system and a conventional system.

  • 59.
    Tan, Yuting
    et al.
    KTH, School of Chemical Science and Engineering (CHE), Chemical Engineering and Technology, Energy Processes.
    Nookuea, W.
    Li, H.
    Thorin, E.
    Yan, Jinyue
    KTH, School of Chemical Science and Engineering (CHE), Chemical Engineering and Technology, Energy Processes. Mälardalen University, Sweden.
    Cryogenic technology for biogas upgrading combined with carbon capture-a review of systems and property impacts2017In: Proceedings of the 9th International Conference on Applied Energy, Elsevier, 2017, Vol. 142, p. 3741-3746Conference paper (Refereed)
    Abstract [en]

    CO2 makes a major contribution to the climate change, and biomass renewable energy and carbon capture and storage (CCS) can be deployed to mitigate the CO2 emission. Cryogenic process for biogas upgrading combined with carbon capture is one of the most promising technologies. This paper reviewed the state-of-the-art of cryogenic systems for biogas upgrading combined with carbon capture, and introduced the status and progress of property impacts on the cryogenic systems with emphasize on phase equilibrium. The existing cryogenic systems can be classified as flash liquefaction system, distillation system, and liquefaction combined with desublimation system. The flash liquefaction system produces biomethane and CO2 in lower purity than the other two systems. Thermodynamic optimization on the flash liquefaction system and liquefaction combined with desublimation system should be done further, and comprehensive comparison between three cryogenic systems needs to be carried out. As to the phase equilibrium, PR EOS is safe to be used in predicting VLE and SVLE with an independent thermodynamic model describing the fugacity of the solid phase. However, the impacts of binary mixing parameter, different EOS models and mixing rules, on the performance of the cryogenic system need to be identified in the future.

  • 60.
    Tan, Yuting
    et al.
    KTH, School of Chemical Science and Engineering (CHE), Chemical Engineering and Technology, Energy Processes.
    Nookuea, W.
    Li, H.
    Thorin, E.
    Yan, Jinyue
    KTH, School of Chemical Science and Engineering (CHE), Chemical Engineering and Technology, Energy Processes.
    Evaluation of viscosity and thermal conductivity models for CO2 mixtures applied in CO2 cryogenic process in carbon capture and storage (CCS)2017In: Applied Thermal Engineering, ISSN 1359-4311, E-ISSN 1873-5606, Vol. 123, p. 721-733Article in journal (Refereed)
    Abstract [en]

    The cryogenic process is used for CO2 purification in oxy-fuel combustion power plant, and multi-stream heat exchanger is one of the most important components. Viscosity and thermal conductivity are key transport properties in the design of plate-fin multi-stream heat exchanger. It is necessary to evaluate the impacts of viscosity and thermal conductivity models on the design of the heat exchanger. In this paper, different viscosity models and thermal conductivity models for CO2 mixtures with non-condensable impurities were first evaluated separately by comparing the calculated results with experimental data. Results show that for viscosity, the absolute average deviation of KRW model is the smallest, which is 1.3%. For thermal conductivity, model developed by Ely and Hanley, with absolute average deviation of 3.5%, is recommended. The impact of property models on the design of plate-fin multi-stream heat exchanger was also analyzed. The thermal conductivity model has a noticeable impact on the plate-fin multi-stream heat exchanger design, and the deviation in design size of heat exchanger by using different thermal conductivity models may reach up to 7.5%. The future work on how to improve the property models was discussed.

  • 61.
    Tan, Yuting
    et al.
    KTH, School of Engineering Sciences in Chemistry, Biotechnology and Health (CBH), Chemical Engineering, Energy Processes.
    Nookuea, W.
    Li, H.
    Thorin, E.
    Yan, Jinyue
    KTH, School of Engineering Sciences in Chemistry, Biotechnology and Health (CBH), Chemical Engineering, Energy Processes.
    Impacts of thermos-physical properties on plate-fin multi-stream heat exchanger design in cryogenic process for CO 2 capture2019In: Applied Thermal Engineering, ISSN 1359-4311, E-ISSN 1873-5606, p. 1445-1453Article in journal (Refereed)
    Abstract [en]

    Oxy-fuel combustion is one of the most promising technologies for CO 2 capture for power plants. In oxy-fuel combustion plants, cryogenic process can be applied for CO 2 purification because the main impurities in flue gas are non-condensable gases. The multi-stream plate-fin heat exchanger is one of the most important components in the CO 2 cryogenic system. In-depth understanding of the impacts of property on the heat exchanger is of importance for appropriate design. In order to investigate the impacts of properties on sizing the heat exchanger and to further identify the key properties to be prioritized for the property model development, this paper presented the design procedure for the plate-fin multi-stream heat exchanger for the CO 2 cryogenic process. Sensitivity study was conducted to analyze the impacts of thermos-physical properties including density, viscosity, heat capacity and thermal conductivity. The results show that thermal conductivity has the most significant impact and hence, developing a more accurate thermal conductivity model is more important for the heat exchanger design. In addition, even though viscosity has less significant impact compared to other properties, the larger deviation range of current viscosity models may lead to higher uncertainties in volume design and annual capital cost of heat exchanger.

  • 62.
    Tan, Yuting
    et al.
    KTH, School of Chemical Science and Engineering (CHE), Chemical Engineering and Technology, Energy Processes.
    Nookuea, W.
    Li, H.
    Thorin, E.
    Yan, Jinyue
    KTH, School of Chemical Science and Engineering (CHE), Chemical Engineering and Technology, Energy Processes. Mälardalen University, Sweden.
    Property Impacts on Plate-fin Multi-stream Heat Exchanger (Cold Box) Design in CO2 Cryogenic Process: Part I. Heat Exchanger Modeling and Sensitivity Study2017In: 8th International Conference on Applied Energy, ICAE 2016; Beijing; China; 8 October 2016 through 11 October 2016, Elsevier, 2017, Vol. 105, p. 4587-4594Conference paper (Refereed)
    Abstract [en]

    The multi-stream plate-fin heat exchanger is one of the most important components in the CO2 cryogenic system. Appropriate design methodology and in-depth analysis of property on the heat exchanger are of importance. This paper, as part I of the two-paper series, presented the design procedure for the multi-stream plate-fin heat exchanger in CO2 cryogenic process. Sensitivity study was also conducted to analyze the impacts of thermos-physical properties including density, viscosity, heat capacity and thermal conductivity. The results show that thermal conductivity has the most significant impact and it should be prioritized to develop a more accurate thermal conductivity model for the heat exchanger design. In addition, viscosity has least significant impact but the higher uncertainty range of viscosity may lead to a higher possible deviation in volume design.

  • 63.
    Tan, Yuting
    et al.
    KTH, School of Chemical Science and Engineering (CHE), Chemical Engineering and Technology, Energy Processes.
    Nookuea, W.
    Li, H.
    Thorin, E.
    Yan, Jinyue
    KTH, School of Chemical Science and Engineering (CHE), Chemical Engineering and Technology, Energy Processes. Mälardalen University, Sweden.
    Property Impacts on Plate-fin Multi-stream Heat Exchanger (Cold Box) Design in CO2 Cryogenic Process: Part II. Evaluation of Viscosity and Thermal Conductivity Models2017In: 8th International Conference on Applied Energy, ICAE 2016; Beijing; China; 8 October 2016 through 11 October 2016, Elsevier, 2017, Vol. 105, p. 4595-4600Conference paper (Refereed)
    Abstract [en]

    Viscosity and thermal conductivity are key transport properties in the design of plate-fin multi-stream heat exchanger in CO2 cryogenic processes. It is necessary to evaluate the reliabilities of viscosity and thermal conductivity models. In addition, the differences in design of multi-stream heat exchanger by using different property models need to be studied as well. In this paper, viscosity models and thermal conductivity models of CO2 mixtures with non-condensable gas impurities were evaluated separately by comparison with existing experimental data. Recommendations were given on model selections and their impact on the design of plate-fin multi-stream heat exchanger were analyzed. The results show that for viscosity, the uncertainty range of Wilke's model is the smallest with a maximum absolute deviation of 6.1%. This model is therefore recommended to be used. For thermal conductivity, GERG model, with a maximum absolute deviation of 8.7% is preferred. The choice of thermal conductivity model has a noticeable impact on the plate-fin multi-stream heat exchanger design, and the maximum deviation by using different thermal conductivity models is 7.5%.

  • 64.
    Tian, Zhenyu
    et al.
    Chinese Acad Sci, Inst Engn Thermophys, Beijing 100190, Peoples R China.;Univ Chinese Acad Sci, Beijing 100049, Peoples R China..
    Hao, Yong
    Chinese Acad Sci, Inst Engn Thermophys, Beijing 100190, Peoples R China.;Univ Chinese Acad Sci, Beijing 100049, Peoples R China..
    Li, Wenjia
    Chinese Acad Sci, Inst Engn Thermophys, Beijing 100190, Peoples R China.;Univ Chinese Acad Sci, Beijing 100049, Peoples R China..
    Campana, Pietro Elia
    KTH, School of Engineering Sciences in Chemistry, Biotechnology and Health (CBH), Chemical Engineering, Energy Processes. Mälardalen Univ, Sch Sustainable Dev Soc & Technol, SE-72123 Västerås, Sweden..
    Li, Hailong
    Mälardalen Univ, Sch Sustainable Dev Soc & Technol, SE-72123 Västerås, Sweden..
    Yan, Jinyue
    KTH, School of Engineering Sciences in Chemistry, Biotechnology and Health (CBH), Chemical Engineering, Energy Processes. Mälardalen Univ, Sch Sustainable Dev Soc & Technol, SE-72123 Västerås, Sweden..
    Jin, Hongguang
    Chinese Acad Sci, Inst Engn Thermophys, Beijing 100190, Peoples R China.;Univ Chinese Acad Sci, Beijing 100049, Peoples R China..
    Integrating concentrating PVs in biogas upgrading2018In: RENEWABLE ENERGY INTEGRATION WITH MINI/MICROGRID / [ed] Yan, J Wang, C Yu, J Jia, H Wu, J Xu, T Zhang, Y, ELSEVIER SCIENCE BV , 2018, p. 598-603Conference paper (Refereed)
    Abstract [en]

    Biogas produced from anaerobic digestion processes has been considered as an important alternative to natural gas and plays a key role in the emerging market for renewable energy. By removing CO2, biogas can be upgraded to vehicle fuel. Chemical absorption is one of the widely used upgrading technologies, which advantages include high purity and low loss of biomethane. However, chemical absorption usually suffers from the high consumption of thermal energy, which is required by the regeneration of the solvent. Aiming at achieving a more sustainable and efficient biomethane production, this work proposed a novel system, which integrate concentrating photovoltaic/thermal hybrid (C-PV/T) in the upgrading of biogas. Due to the ability to produce electricity and heat simultaneously and efficiently, C-PV/T can provide the demands of both the electricity and heat. By doing dynamic simulation of the energy production of C-PV/T, the technical feasibility of such a system is analyzed. Based on the design to meet the heat demand of solvent regeneration, without energy storage, the produced heat can cover 17% of the heat demand of the solvent regeneration, but 51.1% of the electricity demand; meanwhile, 140.3 MWh excess electricity can be sold for one year.

  • 65.
    Wang, C. S.
    et al.
    Tianjin Univ, Key Lab Smart Grid, Minist Educ, Tianjin 30072, Peoples R China..
    Yan, Jinyue
    KTH, School of Engineering Sciences in Chemistry, Biotechnology and Health (CBH), Chemical Engineering, Energy Processes. Malardalen Univ, Sch Sustainable Dev Soc & Technol, S-72123 Vasteras, Sweden.
    Jia, H. J.
    Tianjin Univ, Key Lab Smart Grid, Minist Educ, Tianjin 30072, Peoples R China..
    Wu, J. Z.
    Cardiff Univ, Sch Engn, Cardiff CF24 3AA, S Glam, Wales..
    Yu, J. C.
    State Grid Tianjin Elect Power Co, Tianjin 300010, Peoples R China..
    Xu, T.
    Tianjin Univ, Key Lab Smart Grid, Minist Educ, Tianjin 30072, Peoples R China..
    Zhang, Y.
    Malardalen Univ, Sch Sustainable Dev Soc & Technol, S-72123 Vasteras, Sweden..
    Renewable and distributed energy integration with mini/microgrids2019In: Applied Energy, ISSN 0306-2619, E-ISSN 1872-9118, Vol. 237, p. 920-923Article in journal (Other academic)
  • 66. Wang, Chengshan
    et al.
    Yan, Jinyue
    KTH, School of Chemical Science and Engineering (CHE), Chemical Engineering and Technology, Energy Processes.
    Marnay, Chris
    Djilali, Ned
    Dahlquist, Erik
    Wu, Jianzhong
    Hia, Hongjie
    Distributed Energy and Microgrids (DEM)2018In: Applied Energy, ISSN 0306-2619, E-ISSN 1872-9118, Vol. 210, p. 685-689Article in journal (Other academic)
  • 67. Wang, F.
    et al.
    Deng, S.
    Zhao, J.
    Wang, J.
    Sun, T.
    Yan, Jinyue
    KTH, School of Chemical Science and Engineering (CHE), Chemical Engineering and Technology, Energy Processes.
    Performance and economic assessments of integrating geothermal energy into coal-fired power plant with CO2 capture2017In: Energy, ISSN 0360-5442, E-ISSN 1873-6785, Vol. 119, p. 278-287Article in journal (Refereed)
    Abstract [en]

    A novel carbon capture and storage system integrated with geothermal energy was proposed to reduce energy consumption in the post-combustion CO2 capture (PCC) process. Geothermal energy at medium temperature was used to provide the heat required for solvent regeneration. A technical and economic assessment was conducted based on a 300 MWe coal-fired power plant. Additionally, the integrated system was also compared with a stand-alone geothermal power (GP) plant to evaluate individual advantages. Both an enhanced geothermal system (EGS) and a hot sedimentary aquifer (HSA) reservoir were selected to identify the effect of geological properties and heat characteristics on system performance. The results indicated that the geothermal-assisted post-combustion CO2 capture (GPCC) plant exhibited better performance than the PCC plant. The net plant average efficiency increased 5.56% and 4.42% in the EGS scenario and HSA scenario, respectively. Furthermore, the net incremental geothermal efficiency obtained corresponded to 21.34% and 20.35% in the EGS scenario and HSA scenario, respectively. The economic assessment indicated that the GPCC systems in both the EGS scenario and HSA scenario had lower marginal cost of electricity (70.84 $/MWh and 101.06 $/MWh) when compared with that of the stand-alone GP systems (151.09 $/MWh and 101.95 $/MWh). 

  • 68. Wang, F.
    et al.
    Deng, S.
    Zhao, J.
    Yan, Jinyue
    KTH, School of Chemical Science and Engineering (CHE), Chemical Engineering and Technology, Energy Processes.
    A novel ammonia-based CO2 capture process hybrid ammonia absorption refrigeration2017In: Proceedings of the 9th International Conference on Applied Energy, Elsevier, 2017, Vol. 142, p. 3734-3740Conference paper (Refereed)
    Abstract [en]

    This paper proposed a novel ammonia-based CO2 capture process hybrid ammonia absorption refrigeration to recovery escaped ammonia in the desorption process. The evaporated ammonia was separated with CO2 via gas-liquid phase, and throttled to produce cooling load. The phase envelope of the CO2 and NH3 mixture was investigated to guide the design of the parameters. A preliminary thermodynamic performance was presented to evaluated the performance. The results showed that the regenerator can regenerate CO2 with a ratio of 90% and this process can produce a cooling load of 113.3 MW. The parameter study indicated that it is competitive with the chilled ammonia process.

  • 69. Wang, F.
    et al.
    Deng, S.
    Zhao, J.
    Yang, G.
    Yan, Jinyue
    KTH, School of Chemical Science and Engineering (CHE), Chemical Engineering and Technology, Energy Processes.
    Integrating geothermal into coal-fired power plant with carbon capture: A comparative study with solar energy2017In: Energy Conversion and Management, ISSN 0196-8904, E-ISSN 1879-2227, Vol. 148, p. 569-582Article in journal (Refereed)
    Abstract [en]

    A new system integrating geothermal energy into post-combustion carbon capture is proposed in this paper. Geothermal energy at medium temperatures is used to provide the required thermal heat for solvent regeneration. The performance of this system is compared with solar assisted carbon capture plant via technical and economic evaluation. A 300 MWe coal-fired power plant is selected as the reference case, and two different locations based on the local climatic conditions and geothermal resources are chosen for the comparison. The results show that the geothermal assisted post-combustion carbon capture plant has better performances than the solar assisted one in term of the net power output and annual electricity generation. The net plant average efficiency based on lower heating value can be increased by 2.75% with a thermal load fraction of about 41%. Results of economic assessment show that the proposed geothermal assisted post-combustion carbon capture system has lower levelized costs of electricity and cost of carbon dioxide avoidance compared to the solar assisted post-combustion carbon capture plant. In order to achieve comparative advantages over the reference post-combustion carbon capture plant in both locations, the price of solar collector has to be lower than 70 USD/m2, and the drilling depth of the geothermal well shall be less than 2.1 km.

  • 70.
    Wang, Fu
    et al.
    Ningbo Univ, Fac Maritime & Transportat, Ningbo 315211, Zhejiang, Peoples R China..
    Zhu, Yingming
    Sichuan Univ, Inst New Energy & Low Carbon Technol, Chengdu 610065, Sichuan, Peoples R China..
    Yan, Jinyue
    KTH, School of Engineering Sciences in Chemistry, Biotechnology and Health (CBH), Chemical Engineering, Energy Processes.
    Performance of solar PV micro-grid systems: A comparison study2018In: RENEWABLE ENERGY INTEGRATION WITH MINI/MICROGRID / [ed] Yan, J Wang, C Yu, J Jia, H Wu, J Xu, T Zhang, Y, ELSEVIER SCIENCE BV , 2018, p. 570-575Conference paper (Refereed)
    Abstract [en]

    Two solar PV micro-grid systems were stablished in this paper to examine and investigate their operation ability according to TOU price. Battery storage was used to adjust the operation strategies and bring in different economic benefits. Heat storage and simulation loads were also chosen to simulate the load variation. The power generation of the PV was comprehensively compared in two locations with different solar resources. The power output from PV systems in Ningbo is higher than that in Sichuan under local climate conditions, the accumulated power generation in Ningbo is 40% more than the power output in Sichuan. A preliminary operation strategy shows that the micro-grid can be continuously operated in the set mode. The battery storage has the capacity to achieve the economic optimization of the micro-grid systems.

  • 71. Wang, L.
    et al.
    Liang, Z.
    Cai, M.
    Zhang, Yang
    KTH, School of Engineering Sciences in Chemistry, Biotechnology and Health (CBH), Chemical Engineering, Energy Processes.
    Yan, Jinyue
    KTH, School of Engineering Sciences in Chemistry, Biotechnology and Health (CBH), Chemical Engineering, Energy Processes.
    Adaptive structural control of floating wind turbine with application of MR damper2019In: Innovative Solutions for Energy Transitions, Elsevier, 2019, Vol. 158, p. 254-259Conference paper (Refereed)
    Abstract [en]

    Floating wind turbine has become the most promising technology for deep-sea wind power generation. Therefore, some means to reduce the structural load for stabilizing the wind turbine has been developing. In this paper, a semi-active structural control is realized by replacing the damper in passive TMD with the magnetorheological (MR) damper. The damping force of the MR damper can be changed by altering the voltage applied to it. A simple and convenient control method is designed, which includes adaptive control force design and retrogression controller. The simulation results show that the semi-active control method has a good damping effect, which mitigates much of the structural load with respect to the passive structural control.

  • 72. Wang, T.
    et al.
    Liu, T.
    Luan, W.
    Tu, S. -T
    Yan, Jinyue
    KTH, School of Chemical Science and Engineering (CHE), Chemical Engineering and Technology, Energy Processes. Mälardalen University, Sweden.
    Performance Improvement of High-temperature Silicone Oil Based Thermoelectric Generator2017In: 8th International Conference on Applied Energy, ICAE 2016; Beijing; China; 8 October 2016 through 11 October 2016, Elsevier, 2017, Vol. 105, p. 1211-1218Conference paper (Refereed)
    Abstract [en]

    The recent advances in waste heat recovery technologies have provided great opportunities for energy conversion efficiency improvement. This paper proposed a metal foam filled thermoelectric generator (TEG) for the utilization of liquid waste heat resource. A prototype was designed and constructed to study the performance enhancement due to metal foam inserts. High-temperature oil based experiment was conducted to investigate the TEG performance in higher liquid temperature. The influences of hot oil inlet temperature and cold water flow rate were proved to be key operating parameters for the TEG performance. Specially, net power output and net power enhancement ratio were presented to assess the overall net power output performance. The metal foam filled TEG was demonstrated to outperform the unfilled TEG both in power generation efficiency and net power performance. In the experiments, the maximum power generation efficiency and net power enhancement ratio of metal foam inserted TEG were 2.49% and 1.33, respectively.

  • 73. Wu, J.
    et al.
    Yan, Jinyue
    KTH, School of Chemical Science and Engineering (CHE), Chemical Engineering and Technology, Energy Processes. Mälardalen University, Västerås, Sweden.
    Jia, H.
    Hatziargyriou, N.
    Djilali, N.
    Sun, H.
    Integrated Energy Systems2016In: Applied Energy, ISSN 0306-2619, E-ISSN 1872-9118, Vol. 167, p. 155-157Article in journal (Refereed)
  • 74. Wu, Jianzhnog
    et al.
    Yan, Jinyue
    KTH, School of Chemical Science and Engineering (CHE), Chemical Engineering and Technology. Mälardalen University, Sweden.
    Desideri, Umberto
    Deconinck, Geert
    Madsen, Henrik
    Huitema, George
    Kolb, Thomas
    Synergies between energy supply networks2017In: Applied Energy, ISSN 0306-2619, E-ISSN 1872-9118, Vol. 192, p. 263-267Article in journal (Refereed)
  • 75. Xu, J.
    et al.
    Luo, P.
    Lu, B.
    Wang, H.
    Wang, X.
    Wu, J.
    Yan, Jinyue
    KTH, School of Engineering Sciences in Chemistry, Biotechnology and Health (CBH), Chemical Engineering, Energy Processes.
    Energy-water nexus analysis of wastewater treatment plants (WWTPs) in China based on statistical methodologies2018In: Energy Procedia, Elsevier Ltd , 2018, p. 259-264Conference paper (Refereed)
    Abstract [en]

    Wastewater treatment plants (WWTPs) are considered as energy-intensive facilities. Against the background of stricter policy requirements and discharge standard, thousands of municipal WWTPs are experiencing upgrading and reconstruction in China. However, the accompanying energy consumption cannot be ignored. Based on the statistical analysis of energy consumption and relevant factors from data of more than six thousand WWTPs over China, in this paper we analyzed the most influential factors related to energy consumption, which include treatment technology, wastewater amount, removed pollutants, social and economic characteristics, etc. Furthermore, we set up systematic method of energy performance assessment for WWTPs and explored the potential of energy saving in WWTPs. Results showed that processing capacity, organic pollutant concentration, discharge standard and economic factors have major effects on energy efficiency. Although sludge treatment and disposal normally consume intensive energy, it is possible to recover energy from biomass in the sludge. The results indicate that there is huge potential for energy saving and recovery in WWTPs, and we propose a conceptual roadmap for energy efficiency improving in WWTPs in China.

  • 76.
    Yan, Jie
    et al.
    North China Elect Power Univ, Sch Renewable Energy, State Key Lab Alternate Elect Power Syst Renewabl, Beijing 102206, Peoples R China..
    Lai, Fuxing
    North China Elect Power Univ, Sch Renewable Energy, State Key Lab Alternate Elect Power Syst Renewabl, Beijing 102206, Peoples R China..
    Liu, Yongqian
    North China Elect Power Univ, Sch Renewable Energy, State Key Lab Alternate Elect Power Syst Renewabl, Beijing 102206, Peoples R China..
    Yu, David C.
    Univ Wisconsin, Dept Elect Engn & Comp Sci, Milwaukee, WI 53201 USA..
    Yi, Wenjing
    Natl Dev & Reform Commiss, Energy Res Inst, Beijing, Peoples R China..
    Yan, Jinyue
    KTH, School of Engineering Sciences in Chemistry, Biotechnology and Health (CBH), Chemical Engineering, Energy Processes. Mälardalen Univ, Västerås, Sweden..
    Multi-stage transport and logistic optimization for the mobilized and distributed battery2019In: Energy Conversion and Management, ISSN 0196-8904, E-ISSN 1879-2227, Vol. 196, p. 261-276Article in journal (Refereed)
    Abstract [en]

    High share of variable renewable energy is challenging to the traditional power system technically and economically. This calls for a significant increase to the system flexibility, which might result in the costs associated with energy storage and costly upgrades to the traditional transmission and distribution system. This paper presents a multi-stage battery transportation and logistics optimization method to increase the renewable energy consumptions, economics, and mobilities of the battery utilization. A new approach is proposed in which the batteries are charged in the renewable power plants and transported back and forth by railways between the renewable power plants and cities. Based on the forecasts of battery supplies/demands, multiple optimization stages (full train transport and carpooling) are designed by the branch-and-bound algorithm and genetic algorithm respectively. The proposed battery transportation and logistics concept and model are performed using the Beijing-Tianjin-Hebei region in China as an example. The results show that the levelized cost of energy of the battery transportation and logistics model is $0.045/kWh averagely. Also, by the use of mobilized batteries, the proposed battery transportation and logistics model increases the system flexibilities and renewable energy deliveries to the end users without the reinforcement of transmission and distribution system and any constraint from a highly penetrated power system.

  • 77.
    Yan, Jinyue
    KTH, School of Engineering Sciences in Chemistry, Biotechnology and Health (CBH), Chemical Engineering, Energy Processes. Royal Inst Technol, Stockholm, Sweden.;Malardalen Univ, Vasteras, Sweden..
    Biofuels in Asia2009In: Applied Energy, ISSN 0306-2619, E-ISSN 1872-9118, Vol. 86, p. S1-S10Article in journal (Other academic)
  • 78.
    Yan, Jinyue
    KTH, School of Chemical Science and Engineering (CHE). Malardalen Univ, Sch Business Soc & Engn, Vasteras, Sweden..
    ENERGY TECHNOLOGY Negative-emissions hydrogen energy2018In: Nature Climate Change, ISSN 1758-678X, E-ISSN 1758-6798, Vol. 8, no 7, p. 560-561Article in journal (Refereed)
    Abstract [en]

    The race against time to mitigate climate change has increasingly focused on the development and deployment of bioenergy with carbon capture and storage. New research shows that negative-emissions hydrogen production is potentially a cost-effective alternative.

  • 79.
    Yan, Jinyue
    et al.
    KTH, School of Chemical Science and Engineering (CHE), Chemical Engineering and Technology, Energy Processes.
    Chen, B.
    Wennersten, R.
    Campana, P.
    Yang, J.
    Cleaner energy for transition of cleaner city2017In: Applied Energy, ISSN 0306-2619, E-ISSN 1872-9118, Vol. 196, p. 97-99Article in journal (Refereed)
  • 80.
    Yan, Jinyue
    et al.
    KTH, School of Chemical Science and Engineering (CHE), Chemical Engineering and Technology, Energy Processes. Malardalen Univ, MDU, Stockholm, Sweden.
    Chou, S. K.
    Natl Univ Singapore, Dept Mech Engn, Singapore 117548, Singapore..
    The 35 years' development of Applied Energy: 1975-2010-Editorial for Applied Energy's 35th anniversary2010In: Applied Energy, ISSN 0306-2619, E-ISSN 1872-9118, Vol. 87, no 6, p. 1801-1802Article in journal (Other academic)
  • 81.
    Yan, Jinyue
    et al.
    KTH, School of Chemical Science and Engineering (CHE), Chemical Engineering and Technology, Energy Processes.
    Chou, S. K.
    Chen, Bin
    Sun, Fengchun
    Jia, Hongjie
    Yang, Jin
    Clean, affordable and reliable energy systems for low carbon city transition2017In: Applied Energy, ISSN 0306-2619, E-ISSN 1872-9118, Vol. 194, p. 305-309Article in journal (Refereed)
  • 82.
    Yan, Jinyue
    et al.
    KTH, School of Chemical Science and Engineering (CHE), Chemical Engineering and Technology, Energy Processes. Mälardalen University, Sweden.
    Chou, S. K.
    Desideri, U.
    Xia, X.
    Innovative and sustainable solutions of clean energy technologies and policies (Part II)2014In: Applied Energy, ISSN 0306-2619, E-ISSN 1872-9118, Vol. 136, p. 756-758Article in journal (Refereed)
  • 83.
    Yan, Jinyue
    et al.
    KTH, School of Chemical Science and Engineering (CHE), Chemical Engineering and Technology, Energy Processes. Mälardalens University, Sweden.
    Chou, S. K.
    Li, H.
    Nian, V.
    Editorial: Leveraging Energy Technologies and Policy Options for Low Carbon Cities2017In: Leveraging Energy Technologies and Policy Options for Low Carbon Cities, Elsevier, 2017, Vol. 143, p. 1-2Conference paper (Refereed)
  • 84.
    Yan, Jinyue
    et al.
    KTH, School of Engineering Sciences in Chemistry, Biotechnology and Health (CBH), Chemical Engineering, Energy Processes.
    Dahlquist, E.
    Malardalen Univ, IGEC III, Vasteras, Sweden..
    Yang, H.
    Hong Kong Polytech Univ, Hong Kong, Hong Kong, Peoples R China..
    Guest editorial for a special issue on green energy2008In: International journal of energy research (Print), ISSN 0363-907X, E-ISSN 1099-114X, Vol. 32, no 12, p. 1065-1065Article in journal (Other academic)
  • 85.
    Yan, Jinyue
    et al.
    KTH, School of Engineering Sciences in Chemistry, Biotechnology and Health (CBH), Chemical Engineering, Energy Processes.
    Dahlquist, Erik
    Editorial for Special Issue of the Third International Green Energy Conference, VisterAs, Sweden, June 18-20, 2007 at Applied Energy2009In: Applied Energy, ISSN 0306-2619, E-ISSN 1872-9118, Vol. 86, no 2, p. 125-125Article in journal (Other academic)
  • 86.
    Yan, Jinyue
    et al.
    KTH, School of Engineering Sciences in Chemistry, Biotechnology and Health (CBH), Chemical Engineering, Energy Processes.
    Jin, H. G.
    Chinese Acad Sci, Inst Engn Thermophys, Beijing 100864, Peoples R China..
    Editorial for Special Issue of the IGEC-IV, the 4th International Green Energy Conference (IGEC-IV), Beijing, China, October 20-22, 2008 at the journal, Applied Energy2010In: Applied Energy, ISSN 0306-2619, E-ISSN 1872-9118, Vol. 87, no 9, p. 2769-2769Article in journal (Other academic)
  • 87.
    Yan, Jinyue
    et al.
    KTH, School of Engineering Sciences in Chemistry, Biotechnology and Health (CBH), Chemical Engineering, Energy Processes.
    Kaldellis, P. J. K.
    Campana, Pietro Elia
    KTH, School of Engineering Sciences in Chemistry, Biotechnology and Health (CBH), Chemical Engineering, Energy Processes.
    REM2018: Renewable Energy Integration with Mini/Microgrid2019In: 2018 Renewable Energy Integration with Mini/Microgrid, REM 2018, Vol. 159Article in journal (Refereed)
  • 88.
    Yan, Jinyue
    et al.
    KTH, School of Chemical Science and Engineering (CHE), Chemical Engineering and Technology, Energy Processes. Mälardalen Univ.
    Shamim, T.
    Chou, S. K.
    Desideri, U.
    Li, H.
    Clean, efficient and affordable energy for a sustainable future2017In: APPLIED ENERGY, ISSN 0306-2619, Vol. 185, p. 953-962Article in journal (Refereed)
  • 89.
    Yan, Jinyue
    et al.
    KTH, School of Engineering Sciences in Chemistry, Biotechnology and Health (CBH), Chemical Engineering.
    Sun, F.
    Chou, S. K.
    Desideri, U.
    Li, H.
    Campana, P. E.
    Xiong, R.
    Transformative Innovations for a Sustainable Future2017In: Applied Energy, ISSN 0306-2619, E-ISSN 1872-9118, Vol. 204, p. 867-872Article in journal (Refereed)
    Abstract [en]

    Solar photovoltaic (PV) technology receives much attention. An algorithm based on the Lock-On Mechanism for the maximum power point tracking on the hybrid PV/TEG system was discussed, which proved to be fast and stable in comparison to the conventional fixed step hill climbing algorithm. Combined cycles are also suffering a drawback due to the implementation of large scale renewable energy systems in electric grids. However, gas turbines and combined cycles have always featured very high efficiency and a suitability of being used in combined heat and power and combined cooling heat and power plants that is uncommon among fossil fired power plants. For this reason it is important to continue studying those systems improving their performance even further and integrating the energy and mass flows between combined cycles and other energy systems. LNG production will increase further in the future, since it is expected that LNG might replace diesel or gasoline as a transportation fuel. For the battery management system electric vehicles, a multi-timescale method for dual estimation of satate of charge and capacity with an online identified battery model was discussed.

  • 90.
    Yan, Jinyue
    et al.
    KTH, School of Chemical Science and Engineering (CHE). Mälardalen University.
    Wu, J.
    Li, H.
    Proceedings of the 9th International Conference on Applied Energy2017In: Energy Procedia, ISSN 1876-6102, E-ISSN 1876-6102, Vol. 142, p. 1-2Article in journal (Refereed)
  • 91.
    Yan, Jinyue
    et al.
    KTH, School of Engineering Sciences in Chemistry, Biotechnology and Health (CBH), Chemical Engineering, Energy Processes.
    Wu, J.
    Yang, Y.
    Li, H.
    Wang, H.
    Wang, X.
    Editorial cleaner energy for cleaner city2018In: Energy Procedia, ISSN 1876-6102, E-ISSN 1876-6102, Vol. 152, p. 1-2Article in journal (Refereed)
  • 92.
    Yan, Jinyue
    et al.
    KTH, School of Engineering Sciences in Chemistry, Biotechnology and Health (CBH), Chemical Engineering, Energy Processes.
    Yang, H.
    Li, H.
    KTH, School of Chemical Science and Engineering (CHE).
    Chen, X.
    Innovative solutions for energy transitions: Proceedings of the 10th International Conference on Applied Energy (ICAE2018)2019In: Innovative Solutions for Energy Transitions, Elsevier, 2019, Vol. 158, p. 1-2Conference paper (Refereed)
  • 93.
    Yan, Jinyue
    et al.
    KTH, School of Engineering Sciences in Chemistry, Biotechnology and Health (CBH), Chemical Engineering, Energy Processes.
    Yang, X.
    Thermal energy storage2019In: Applied Energy, ISSN 0306-2619, E-ISSN 1872-9118, Vol. 240, p. A1-A6Article in journal (Refereed)
  • 94.
    Yan, Jinyue
    et al.
    KTH, School of Engineering Sciences in Chemistry, Biotechnology and Health (CBH), Chemical Engineering, Energy Processes. Malardalen Univ, Sch Business Soc & Engn, Vasteras, Sweden..
    Yang, Ying
    Malardalen Univ, Sch Business Soc & Engn, Vasteras, Sweden..
    Campana, Pietro Elia
    KTH, School of Engineering Sciences in Chemistry, Biotechnology and Health (CBH), Chemical Engineering, Energy Processes. Malardalen Univ, Sch Business Soc & Engn, Vasteras, Sweden..
    He, Jijiang
    Tsinghua Univ, Sch Social Sci, Beijing, Peoples R China.;Tsinghua Univ, Energy Internet Res Inst, Beijing, Peoples R China..
    City-level analysis of subsidy-free solar photovoltaic electricity price, profits and grid parity in China2019In: Nature Energy, ISSN 2058-7546, Vol. 4, no 8, p. 709-717Article in journal (Refereed)
    Abstract [en]

    In recent years, China has become not just a large producer but a major market for solar photovoltaics (PV), increasing interest in solar electricity prices in China. The cost of solar PV electricity generation is affected by many local factors, making it a challenge to understand whether China has reached the threshold at which a grid-connected solar PV system supplies electricity to the end user at the same price as grid-supplied power or the price of desulfurized coal electricity, or even lower. Here, we analyse the net costs and net profits associated with building and operating a distributed solar PV project over its lifetime, taking into consideration total project investments, electricity outputs and trading prices in 344 prefecture-level Chinese cities. We reveal that all of these cities can achieve-without subsidies-solar PV electricity prices lower than grid-supplied prices, and around 22% of the cities' solar generation electricity prices can compete with desulfurized coal benchmark electricity prices.

  • 95.
    Yan, Jinyue
    et al.
    KTH. Mälardalen University, Sweden.
    Zhai, Y.
    Wijayatunga, P.
    Mohamed, A. M.
    Campana, P. E.
    KTH.
    Renewable Energy Integration with Mini/Microgrid2016In: Energy Procedia, ISSN 1876-6102, E-ISSN 1876-6102, Vol. 103, p. 1-2Article in journal (Refereed)
  • 96.
    Yan, Jinyue
    et al.
    KTH, School of Chemical Science and Engineering (CHE), Chemical Engineering and Technology, Energy Processes. Mälardalen University, Sweden.
    Zhai, Y.
    Wijayatunga, P.
    Mohamed, A. M.
    Campana, P. E.
    Renewable energy integration with mini/micro-grids2017In: Applied Energy, ISSN 0306-2619, E-ISSN 1872-9118, Vol. 201, p. 241-244Article in journal (Refereed)
  • 97.
    Yan, Jinyue
    et al.
    KTH, School of Engineering Sciences in Chemistry, Biotechnology and Health (CBH), Chemical Engineering, Energy Processes.
    Zhang, Zhien
    Chongqing Univ, Minist Educ China, Key Lab Low Grade Energy Utilizat Technol & Syst, Chongqing 400044, Peoples R China..
    Carbon Capture, Utilization and Storage (CCUS)2019In: Applied Energy, ISSN 0306-2619, E-ISSN 1872-9118, Vol. 235, p. 1289-1299Article in journal (Refereed)
  • 98.
    Yang, Hongxing
    et al.
    Hong Kong Polytech Univ, Hong Kong, Hong Kong, Peoples R China..
    Leung, Dennis Y. C.
    Univ Hong Kong, Hong Kong, Hong Kong, Peoples R China..
    Yan, Jinyue
    KTH, School of Chemical Science and Engineering (CHE), Chemical Engineering and Technology, Energy Processes. Mälardalen Univ, Västerås, Sweden.
    First International Congress on Applied Energy, Hong Kong, January 5-7, 20092010In: International Journal of Green Energy, ISSN 1543-5075, E-ISSN 1543-5083, Vol. 7, no 3, p. 223-223, article id PII 922586049Article in journal (Other academic)
  • 99. Yang, J.
    et al.
    Yu, X.
    An, L.
    Tu, S. -T
    Yan, Jinyue
    KTH, School of Chemical Science and Engineering (CHE), Chemical Engineering and Technology, Energy Processes.
    CO2 capture with the absorbent of a mixed ionic liquid and amine solution considering the effects of SO2 and O22017In: Applied Energy, ISSN 0306-2619, E-ISSN 1872-9118, Vol. 194, p. 9-18Article in journal (Refereed)
    Abstract [en]

    Room-temperature ionic liquids (ILs) have recently been proposed as a potential candidate for CO2 capture. In this study, experiments were conducted in an absorption-desorption loop system to investigate the effects of SO2 and O2 on CO2 capture using an aqueous amine solution mixed with IL. The gas mixture containing CO2, O2, SO2 and N2 in the composition range of flue gas from a coal-fired power plant after flue gas desulfurization was selected as the feed gas. It was found that the addition of hydrophilic IL of 1-butyl-3-methylimidazolium tetrafluoroborate ([bmim][BF4]) to a monoethanolamine (MEA) aqueous solution reduced the losses of MEA and water by lowering the saturated vapour pressure of the mixed absorbent. For hydrophobic IL of 1-hexyl-3-methylimidazolium bis(trifluoromethylsulfonyl)imide ([hmim][Tf2N]), the MEA loss for 30 wt% MEA + 70 wt% [hmim][Tf2N] increased dramatically with the system running because carbonate, which was formed by MEA reacting with CO2, was insoluble in [hmim][Tf2N] at the absorber operation temperature of 323 K. The effects of O2 and SO2 were relatively insignificant for the MEA and water losses. The aqueous amine solution mixed with [bmim][BF4] showed good performances with a CO2 removal efficiency of above 90% and the SO2 concentration at the absorber outlet below 20 ppb. No obvious IL loss was detected. For the absorbent of 30 wt% MEA + 50 wt% [bmim][BF4] + 20 wt% H2O, the thermal energy consumption for absorbent regeneration is 33.8% lower than that of the aqueous MEA solution.

  • 100. Yang, Perry Pei-Ju
    et al.
    Yan, Jinyue
    KTH, School of Chemical Science and Engineering (CHE), Chemical Engineering and Technology, Energy Processes.
    Modeling Urban Design with Energy Performance2016In: CUE 2015 - APPLIED ENERGY SYMPOSIUM AND SUMMIT 2015: LOW CARBON CITIES AND URBAN ENERGY SYSTEMS, 2016, p. 3-8Conference paper (Refereed)
    Abstract [en]

    Traditional urban design methods focus on the form-making process and lack performance dimensions such as energy efficiency. There are inherent differences between Urban Design as a model of decision-making for choosing form alternatives and Energy System Modeling as a model of evaluating and assessing system functions. To design a high energy performance city, the gap between the two models must be bridged. We propose a research design that combines the Urban Design Computational Model (UDCM) and the Optimization Model of Energy Process (OMEP) to demonstrate how an urban design computation can be integrated with an energy performance process and system. An evidence-based case study of community-level near zero energy districts will be needed for future work.

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