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  • 201. Wen, Z.
    et al.
    Yu, X.
    Tu, S. -T
    Yan, Jinyue
    KTH, School of Chemical Science and Engineering (CHE), Chemical Engineering and Technology, Energy Processes.
    Catalytic Biodiesel Production2013In: Air Pollution Prevention and Control: Bioreactors and Bioenergy, John Wiley & Sons, 2013, p. 383-397Chapter in book (Other academic)
    Abstract [en]

    Biodiesel can be produced through transesterification process with alcohols by using batch reactors with homogeneous catalysts. However, this type of operation process exhibits low efficiency along with issues on the post-treatment or recycle of homogeneous catalysts. To improve those shortcomings, new intensified continuous reactors and heterogeneous catalysts have been developed to meet both the requirement of high-efficiency and low-pollution. This chapter will summarize the recent progress of intensified reactors and new solid heterogeneous catalysts for biodiesel production, which will provide solid foundations to analyze the potential continuous reactors and solid heterogeneous catalysts for large-scale biodiesel production. Furthermore, the economic analysis and ecological issues are also demonstrated in the end.

  • 202. Wen, Zhenzhong
    et al.
    Yu, Xinhai
    Tu, Shan-Tung
    Yan, Jinyue
    KTH, School of Chemical Science and Engineering (CHE), Chemical Engineering and Technology, Energy Processes.
    Dahlquist, Erik
    Biodiesel production from waste cooking oil catalyzed by TiO2-MgO mixed oxides2010In: Bioresource Technology, ISSN 0960-8524, E-ISSN 1873-2976, Vol. 101, no 24, p. 9570-9576Article in journal (Refereed)
    Abstract [en]

    Mixed oxides of TiO2-MgO obtained by the sal-gel method were used to convert waste cooking oil into biodiesel. Titanium improved the stability of the catalyst because of the defects induced by the substitution of Ti ions for Mg ions in the magnesia lattice. The best catalyst was determined to be MT-1-923, which is comprised of an Mg/Ti molar ratio of 1 and calcined at 923 K, based on an assessment of the activity and stability of the catalyst. The main reaction parameters, including methanol/oil molar ratio, catalyst amount, and temperature, were investigated. The catalytic activity of MT-1-923 decreased slowly in the reuse process. After regeneration, the activity of MT-1-923 slightly increased compared with that of the fresh catalyst due to an increase in the specific surface area and average pore diameter. The mixed oxides catalyst. TiO2-MgO, showed good potential in large-scale biodiesel production from waste cooking oil.

  • 203. Wen, Zhenzhong
    et al.
    Yu, Xinhai
    Tu, Shan-Tung
    Yan, Jinyue
    KTH, School of Chemical Science and Engineering (CHE), Chemical Engineering and Technology, Energy Processes.
    Dahlquist, Erik
    Intensification of biodiesel synthesis using zigzag micro-channel reactors2009In: Bioresource Technology, ISSN 0960-8524, E-ISSN 1873-2976, Vol. 100, no 12, p. 3054-3060Article in journal (Refereed)
    Abstract [en]

    Zigzag micro-channel reactors have been fabricated and used for continuous alkali-catalyzed biodiesel synthesis. The influences of the main geometric parameters on the performance of the micro-channel reactors were experimentally studied. it has been found that the zigzag micro-channel reactor with smaller channel size and more turns produces smaller droplets which result in higher efficiency of biodiesel synthesis. Compared to conventional stirred reactors, the time for high methyl ester conversion can be shortened significantly with the methyl ester yield of 99.5% at the residence time of only 28 s by using the optimized zigzag micro-channel reactor, which also exhibits less energy consumption for the same amount of biodiesel during biodiesel synthesis. The results indicate that zigzag micro-channel reactors can be designed as compact and mini-fuel processing plant for distributive applications.

  • 204. Wen, Zhenzhong
    et al.
    Yu, Xinhai
    Tu, Shan-Tung
    Yan, Jinyue
    KTH, School of Chemical Science and Engineering (CHE), Chemical Engineering and Technology, Energy Processes.
    Dahlquist, Erik
    Synthesis of biodiesel from vegetable oil with methanol catalyzed by Li-doped magnesium oxide catalysts2010In: Applied Energy, ISSN 0306-2619, E-ISSN 1872-9118, Vol. 87, no 3, p. 743-748Article in journal (Refereed)
    Abstract [en]

    The preparation of a Li-doped MgO for biodiesel synthesis has been investigated by optimizing the catalyst composition and calcination temperatures. The results show that the formation of strong base sites is particularly promoted by the addition of Li, thus resulting in an increase of the biodiesel synthesis. The catalyst with the Li/Mg molar ratio of 0.08 and calcination temperature of 823 K exhibits the best performance. The biodiesel conversion decreases with further increasing Lift molar ratio above 0.08, which is most likely attributed to the separated lithium hydroxide formed by excess Li ions and a concomitant decrease of BET values. In addition, the effects of methanol/oil molar ratio, reaction time, catalyst amount, and catalyst stability were also investigated for the optimized Li-doped MgO. The metal leaching from the Li-doped MgO catalysts was detected, indicating more studies are needed to stabilize the catalysts for its application in the large-scale biodiesel production facilities.

  • 205. Whalen, Joann
    et al.
    Xu, Charles (Chunbao)
    Shen, Fei
    Kumar, Amit
    Eklund, Mats
    Yan, Jinyue
    KTH, School of Chemical Science and Engineering (CHE), Chemical Engineering and Technology, Energy Processes. Mälardalen University, Sweden.
    Sustainable biofuel production from forestry, agricultural and waste biomass feedstocks2017In: Applied Energy, ISSN 0306-2619, E-ISSN 1872-9118, Vol. 198, p. 281-283Article in journal (Refereed)
  • 206. Wolf, J.
    et al.
    Anheden, M.
    Yan, Jinyue
    KTH, School of Chemical Science and Engineering (CHE), Chemical Engineering and Technology, Energy Processes.
    Comparison of nickel- and iron-based oxygen carriers in chemical looping combustion for CO2 capture in power generation2005In: Fuel, ISSN 0016-2361, E-ISSN 1873-7153, Vol. 84, no 7-8, p. 993-1006Article in journal (Refereed)
    Abstract [en]

    In chemical looping combustion (CLC), a solid oxygen carrier circulates between two fluidised bed reactors and transports oxygen from the combustion air to the fuel: thus, the fuel is not mixed with air and an inherent CO2 separation occurs. In this paper, CLC is integrated in a natural gas fired combined cycle (NGCC). In this system, nickel- and iron-based oxygen carriers are compared regarding the system's electrical and exergy efficiencies. Furthermore, the feasibility of CLC in two interconnected pressurised fluidised bed reactors (IPFBR) is studied for both oxygen carriers. The hypothetical layout plus dimensions of the IPFBR is presented for a capacity of 800 MW input of natural gas. Finally, top-firing is proposed as an option to overcome the apparent limitation in operating temperature of the reactor equipment and/or the oxygen carriers. The results indicate that there is no significant difference in the system's efficiency if both oxygen carriers could operate at the same temperature. However, CLC seems easier to be technically realised in an IPFBR with a nickel-based oxygen carrier.

  • 207. Wolf, J.
    et al.
    Barone, F.
    Yan, Jinyue
    KTH, Superseded Departments, Chemical Engineering and Technology.
    Performance analysis of evaporative biomass air turbine cycle with gasification for topping combustion2002In: Journal of engineering for gas turbines and power, ISSN 0742-4795, E-ISSN 1528-8919, Vol. 124, no 4, p. 757-761Article in journal (Refereed)
    Abstract [en]

    This paper investigates the performance of a new power cycle, a so called evaporative biomass air turbine (EvGT-BAT) cycle with gasification for topping combustion. The process integrates an externally fired gas turbine (EFGT), an evaporative gas turbine (EvGT), and biomass gasification. Through such integration, the system may provide the potential for adapting features from different advanced solid-fuel-based power generation technologies, e.g., externally fired gas turbine, integrated gasification combined cycle (IGCC), and fluidized bed combustion, thus improving the system performance and reducing the technical difficulties. In the paper the features of the EvGT-BAT cycle have been addressed. The thermal efficiencies for different integrations of the gasification for topping combustion and the heat recovery have been analyzed. By drying the biomass feedstock, the thermal efficiency of the EvGT-BAT cycle can be increased by more than three percentage points. The impact of the outlet air temperature of the high-temperature heat exchanger has also been studied in the present system. Finally, the size of the gasifier for topping combustion has been compared with the one in IGCC, which illustrates that the gasifier of the studied system can be much smaller compared to IGCC The results of the study will be useful for the future engineering development of advanced solid fuel power generation technologies.

  • 208. Wolf, J.
    et al.
    Yan, Jinyue
    KTH, School of Chemical Science and Engineering (CHE), Chemical Engineering and Technology, Energy Processes.
    Parametric study of chemical looping combustion for tri-generation of hydrogen, heat, and electrical power with CO2 capture2005In: International journal of energy research (Print), ISSN 0363-907X, E-ISSN 1099-114X, Vol. 29, no 8, p. 739-753Article in journal (Refereed)
    Abstract [en]

    In this article, a novel cycle configuration has been studied, termed the extended chemical looping combustion integrated in a steam-injected gas turbine cycle. The products of this system are hydrogen, heat, and electrical power. Furthermore, the system inherently separates the CO2 and hydrogen that is produced during the combustion. The core process is an extended chemical looping combustion (exCLC) process which is based on classical chemical looping combustion (CLC). In classical CLC, a solid oxygen carrier circulates between two fluidized bed reactors and transports oxygen from the combustion air to the fuel; thus, the fuel is not mixed with air and an inherent CO2 separation occurs. In exCLC the oxygen carrier circulates along with a carbon carrier between three fluidized bed reactors, one to oxidize the oxygen carrier, one to produces and separate the hydrogen, and one to regenerate the carbon carrier. The impacts of process parameters, such as flowrates and temperatures have been studied on the efficiencies of producing electrical power, hydrogen, and district heating and on the degree of capturing CO2. The result shows that this process has the potential to achieve a thermal efficiency of 54% while 96% of the CO2 is captured and compressed to 110 bar.

  • 209.
    Wolf, Jens
    et al.
    KTH, Superseded Departments, Chemical Engineering and Technology.
    Yan, Jinyue
    KTH, Superseded Departments, Chemical Engineering and Technology.
    Cogeneration of hydrogen and electrical power in an extended chemical-looping combustion2004In: Energy-Efficient, Cost-Effective and Environmentally-Sustainable Systems and Processes, Vols 1-3 / [ed] Rivero, R; Monroy, L; Pulido, R; Tsatsaronis, G, MEXICO: INST MEXICANO DEL PETROLEO , 2004, p. 1151-1160Conference paper (Refereed)
    Abstract [en]

    This paper presents an extended chemical-looping combustion (exCLC), which may be the core process in an advanced power generation system with CO2-capture that cogenerates hydrogen and electrical power. This paper focuses on the description of the exCLC and its novelty compared to the classic chemical-looping combustion (CLC), which is known as all efficient alternative for CO2-capture. In CLC. a solid oxygen carrier circulates between two fluidised-bed reactors and transports oxygen from the combustion air to the fuel, thus, the fuel is not mixed with air and an inherent CO2 separation occurs. In addition to the classic CLC, the exCLC inherently separates the CO2 and hydrogen, that is produced by the process. A thermo-chemical study of the exCLC provides the required operating conditions of each step. The results indicate that the production of hydrogen is possible as well as an inherent separation of hydrogen and CO2.

  • 210. 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)
  • 211. 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)
  • 212. Xu, H.
    et al.
    Liu, J.
    Qin, D.
    Gao, X.
    Yan, Jinyue
    KTH, School of Chemical Science and Engineering (CHE), Chemical Engineering and Technology, Energy Processes.
    Feasibility analysis of solar irrigation system for pastures conservation in a demonstration area in Inner Mongolia2013In: Applied Energy, ISSN 0306-2619, E-ISSN 1872-9118, Vol. 112, no SI, p. 697-702Article in journal (Refereed)
    Abstract [en]

    Pasture lands in Inner Mongolia of China have been deteriorated severely by overgrazing and climate change in the past 30. years. There is a plan to set up a solar irrigation system in Xilamuren area of the region to restore the pastures effectively. In order to design the solar irrigation system based on groundwater, equations for analyzing the optimum irrigation amount were developed in this study, and the main steps to design the system were also given. The coefficients and parameters in the equations are related to meteorological factors, vegetation types and areas, and soil properties. The soil water content is a control variable to decide the water irrigation amount for its effects on maintaining the vegetation growth based on soil water evaporation, plant transpiration and physiological consumption. According to the pasture restoring objectives and water demands during the plants growing periods, proper soil water contents are chosen as evaluation basis for irrigation. The groundwater system should be kept healthy during exploitation; so, the possible supply of local groundwater is a constraint condition in the model. Besides, an optimum irrigation amount process in a whole year is provided for the solar powered system design.

  • 213.
    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)
  • 214.
    Yan, Jinyue
    KTH, School of Chemical Science and Engineering (CHE), Chemical Engineering and Technology, Energy Processes. Malardalen University, Sweden.
    Carbon Capture and Storage (CCS)2015In: Applied Energy, ISSN 0306-2619, E-ISSN 1872-9118, Vol. 148, p. A1-A6Article in journal (Refereed)
  • 215.
    Yan, Jinyue
    KTH, School of Chemical Science and Engineering (CHE), Chemical Engineering and Technology, Energy Processes.
    Decoupling between development and emissions: Innovative climate change mitigation systems and technologies2010In: Proceedings of the first international conference on sustainable urbanization (ICSU 2010), Kowloon: Hong Kong Polytechnic Univ, Fac Construction & Environment , 2010, p. 734-734Conference paper (Refereed)
    Abstract [en]

    A direct link between emissions and GDP is experienced in the most countries. The urgent actions for mitigating climate change call for the decoupling of the economic growth from emissions. Innovative climate change mitigation technologies and systems have critical roles to play in reducing greenhouse gas emissions and increasing greenhouse gas sinks. This presentation will review the experiences of the decoupling in Sweden, as an example. The wider adoption of existing climate-friendly technologies, and the development and deployment of demonstrated, new and improved and innovative technologies and increased utilization of non-fossil fuels are of importance together with the favorable policy incentives. Realizing the potential to reduce greenhouse gases emissions requires combined actions in all sectors of economy including adoption of energy-efficient technologies and practices, increased fuel switching toward lower carbon fuels, combined growth in the use of efficient energy systems, greater reliance on renewable energy sources, physical sequestration of CO2, and improving the end-use efficiency of energy uses etc. This talk also presents the technically integrated options related to renewable biomass energy systems for mitigating GHG emissions. Those options include industrial process improvement, energy optimization and integration with advanced power generation technologies, and integration of industrial processes with carbon capture and storage (CCS). Such options could create a new opportunities and possibilities for the future carbon-constrained economy, which may result in a "negative CO2 emission" energy system. The presentation will address the integration of CO2 capture into large industrial processes integrated with renewable bioenergy resources. Different possibilities with integrated energy systems will be proposed and analyzed.

  • 216.
    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.

  • 217.
    Yan, Jinyue
    KTH, School of Chemical Science and Engineering (CHE), Chemical Engineering and Technology, Energy Processes.
    Transitions of the future energy systems Editorial of year 2013 for the 101th volume of Applied Energy2013In: Applied Energy, ISSN 0306-2619, E-ISSN 1872-9118, Vol. 101, p. 1-2Article in journal (Other academic)
  • 218.
    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)
  • 219.
    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)
  • 220.
    Yan, Jinyue
    et al.
    KTH, School of Chemical Science and Engineering (CHE), Chemical Engineering and Technology, Energy Processes.
    Chou, S. K.
    Dahlquist, E.
    Recent progress in sustainable energy systems2013In: International journal of energy research (Print), ISSN 0363-907X, E-ISSN 1099-114X, Vol. 37, no 15, p. 1937-1938Article in journal (Other academic)
  • 221.
    Yan, Jinyue
    et al.
    KTH, School of Chemical Science and Engineering (CHE), Chemical Engineering and Technology, Energy Processes. Mälardalen University, Sweden .
    Chou, S. K.
    Dahlquist, E.
    Li, H.
    Innovative Research For Sustainable Energy Systems2015In: International Journal of Green Energy, ISSN 1543-5075, E-ISSN 1543-5083, Vol. 12, no 3, p. 191-191Article in journal (Other academic)
  • 222.
    Yan, Jinyue
    et al.
    KTH, School of Chemical Science and Engineering (CHE), Chemical Engineering and Technology, Energy Processes.
    Chou, S. K.
    Desideri, U.
    Tu, S. T.
    Jin, H. G.
    Research, development and innovations for sustainable future energy systems2013In: Applied Energy, ISSN 0306-2619, E-ISSN 1872-9118, Vol. 112, p. 393-395Article in journal (Refereed)
  • 223.
    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)
  • 224.
    Yan, Jinyue
    et al.
    KTH, School of Chemical Science and Engineering (CHE), Chemical Engineering and Technology, Energy Processes. Malardalen Univ, Sch Sustainable Dev Soc & Technol, S-72123 Vasteras, Sweden.
    Chou, S. K.
    Desideri, U.
    Xia, Xiaohua
    Innovative and sustainable solutions of clean energy technologies and policies (Part I)2014In: Applied Energy, ISSN 0306-2619, E-ISSN 1872-9118, Vol. 130, p. 447-449Article in journal (Other academic)
  • 225.
    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)
  • 226.
    Yan, Jinyue
    et al.
    KTH, School of Chemical Science and Engineering (CHE), Chemical Engineering and Technology, Energy Processes.
    Chou, Siaw-Kiang
    Desideri, Umberto
    Lee, Duu-Jong
    Transition of clean energy systems and technologies towards a sustainable future (Part I)2015In: Applied Energy, ISSN 0306-2619, E-ISSN 1872-9118, Vol. 160, p. 619-622Article in journal (Other academic)
  • 227.
    Yan, Jinyue
    et al.
    KTH, School of Chemical Science and Engineering (CHE), Chemical Engineering and Technology, Energy Processes. Mälardalens Högskola, Sweden.
    Chou, Siaw-Kiang
    Desideri, Umberto
    Lee, Duu-Jong
    Transition of clean energy systems and technologies towards a sustainable future (Part II)2016In: Applied Energy, ISSN 0306-2619, E-ISSN 1872-9118, Vol. 162, p. 1109-1113Article in journal (Other academic)
  • 228.
    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)
  • 229.
    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)
  • 230.
    Yan, Jinyue
    et al.
    KTH, School of Chemical Science and Engineering (CHE), Chemical Engineering and Technology, Energy Processes.
    Desideri, U.
    Chou, S. K.
    Li, H.
    Energy solutions for a sustainable world2016In: International Journal of Green Energy, ISSN 1543-5075, E-ISSN 1543-5083, Vol. 13, no 8, p. 757-758Article in journal (Refereed)
  • 231.
    Yan, Jinyue
    et al.
    KTH, Superseded Departments, Chemical Engineering and Technology.
    Eidensten, L.
    Status and perspective of externally fired gas turbines2000In: Journal of Propulsion and Power, ISSN 0748-4658, E-ISSN 1533-3876, Vol. 16, no 4, p. 572-576Article in journal (Refereed)
    Abstract [en]

    Power generation with an externally fired gas turbine (EFGT) is a promising technology for solid fuels such as coal and biomass because it offers high efficiency, low cost, and low environmental impacts. Different systems of EFGT are presented, including externally fired combined cycles and externally fired humid air turbines. Recent research and engineering development of the technologies are reviewed. Topics including system configurations, thermal efficiencies, and high-temperature heat exchangers issues are discussed. The results of this study can be applied to guide the future development of solid-fuel-based externally fired gas turbine systems.

  • 232.
    Yan, Jinyue
    et al.
    KTH, Superseded Departments, Chemical Engineering and Technology.
    Ji, Xiaoyan
    KTH, Superseded Departments, Chemical Engineering and Technology.
    Jonsson, M.
    Thermodynamic property models for the simulation of advanced wet cycles2003In: American Society of Mechanical Engineers, International Gas Turbine Institute, Turbo Expo (Publication) IGTI, 2003, Vol. 3, p. 211-219Conference paper (Refereed)
    Abstract [en]

    Advanced gas turbine cycles with water or steam addition (i.e., wet cycles) have attracted much interest in recent years and some commercial systems are available. Because water is added into different points of a gas turbine depending on the methods of water addition, the working fluid of gas turbine has been changed to air-water (humid air) mixture at elevated pressure. Thus, the thermodynamic properties of working fluid are different as conventional gas turbines. Accurate calculation models for thermodynamic properties of air-water mixture are of importance for process simulation, and traceable performance test of turbomachinery and heat exchangers in the wet cycle systems. However, the impacts of thermodynamic properties on the simulation of systems and their components have been overlooked. This paper is to present our study and provide a comprehensive comparison of exiting thermodynamic models of air-water mixtures. Different models including ours have been used to calculate some components including compressor, humidification tower, heat exchanger etc. in wet cycles for investigating the impacts of thermodynamic properties on the system performance. It reveals that a careful selection of thermodynamic property model is crucial for the design of cycles. This paper will provide a useful tool for predicting the performance of the system and design of the wet cycle components and systems.

  • 233.
    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)
  • 234.
    Yan, Jinyue
    et al.
    KTH, School of Chemical Science and Engineering (CHE), Chemical Engineering and Technology, Energy Processes.
    Naqvi, Muhammad Raza
    Dahlquist, Erik
    Malardalen University.
    Bioenergy polygeneration, carbon capture and storage related to the pulp and paper industry and power plants2013In: Biomass as Energy Source: Resources, Systems and Applications / [ed] Dahlquist E., Boca Raton: CRC Press, 2013Chapter in book (Refereed)
  • 235.
    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)
  • 236.
    Yan, Jinyue
    et al.
    KTH, School of Chemical Science and Engineering (CHE), Chemical Engineering and Technology, Energy Processes.
    Shamim, T.
    Choud, S. K.
    Li, H.
    Clean, Efficient and Affordable Energy for a Sustainable Future - The Proceedings of the 7th International Conference on Applied Energy (ICAE2015)2015In: CLEAN, EFFICIENT AND AFFORDABLE ENERGY FOR A SUSTAINABLE FUTURE, Elsevier, 2015, p. 1-2Conference paper (Refereed)
  • 237.
    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.

  • 238.
    Yan, Jinyue
    et al.
    KTH, School of Engineering Sciences in Chemistry, Biotechnology and Health (CBH). Malardalen Univ, Sch Business Soc & Energy, S-72123 Vasteras, Sweden..
    Sun, F.
    Beijing Inst Technol, Natl Engn Lab Elect Vehicles, Beijing 100081, Peoples R China..
    Chou, S. K.
    Natl Univ Singapore, Dept Mech Engn, 9 Engn Dr 1,Blk EA 04-12, Singapore 117576, Singapore..
    Desideri, U.
    Univ Pisa, Dept Energy Syst Terr & Construct Engn, I-56122 Pisa, Italy..
    Li, H.
    Malardalen Univ, Sch Business Soc & Energy, S-72123 Vasteras, Sweden..
    Campana, P. E.
    Malardalen Univ, Sch Business Soc & Energy, S-72123 Vasteras, Sweden..
    Xiong, R.
    Beijing Inst Technol, Natl Engn Lab Elect Vehicles, Beijing 100081, Peoples R China..
    Transformative innovations for a sustainable future2018In: Applied Energy, ISSN 0306-2619, E-ISSN 1872-9118, Vol. 231, p. 1383-1388Article in journal (Refereed)
  • 239.
    Yan, Jinyue
    et al.
    KTH, School of Chemical Science and Engineering (CHE), Chemical Engineering and Technology.
    Sun, F.
    Choug, S. K.
    Desideri, U.
    Li, H.
    Campana, P.
    Xiong, R.
    Transformative Innovations for a Sustainable Future - Part II2017In: Applied Energy, ISSN 0306-2619, E-ISSN 1872-9118, Vol. 207, p. 1-6Article in journal (Refereed)
  • 240.
    Yan, Jinyue
    et al.
    KTH, School of Chemical Science and Engineering (CHE), Chemical Engineering and Technology, Energy Processes. Mälardalen University (MDH), Sweden.
    Wennersten, R.
    Chen, B.
    Yang, J.
    Lv, Y.
    Sun, Q.
    Editorial2016In: Energy Procedia, ISSN 1876-6102, E-ISSN 1876-6102, Vol. 104, p. 1-2Article in journal (Refereed)
  • 241.
    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)
  • 242.
    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)
  • 243.
    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)
  • 244.
    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)
  • 245. 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.

  • 246. Yang, J.
    et al.
    Yu, X.
    Yan, Jinyue
    KTH, School of Chemical Science and Engineering (CHE), Chemical Engineering and Technology, Energy Processes. School of Sustainable Development of Society and Technology, Mälardalen University, Västerås, Sweden .
    Tu, S. -T
    Dahlquist, E.
    Effects of SO2 on CO2 capture using a hollow fiber membrane contactor2013In: Applied Energy, ISSN 0306-2619, E-ISSN 1872-9118, Vol. 112, no SI, p. 755-764Article in journal (Refereed)
    Abstract [en]

    Membrane gas absorption technology is a promising alternative to conventional technologies for the mitigation of acid gases. In this study, with a polypropylene (PP) hollow fiber membrane contactor as absorber and a packed column as stripper, the influence of SO2 on the CO2 capture from coal-fired power plant flue gas was investigated in an absorption-desorption experimental set-up using aqueous monoethanolamine (MEA) as the absorbent. The experimental results showed that the MEA loss per ton captured CO2 increased with the addition of SO2, resulting in sharp decreases in CO2 removal efficiency and mass transfer rate of CO2 after initial several days of operation. This tendency is mainly attributed to the promotional effect of SO2 on the degradation of MEA by the formation of sulfate. Thus, it is necessary to regenerate MEA using a reclaimer in this case. The respective SO2 concentrations at the outlets of absorber and stripper remained constant values of 24 and 120ppb throughout the operation although the CO2 removal efficiency decreased dramatically with time. This co-capture of CO2 and SO2 could play an important role in further desulfuration, thus alleviating the burden of desulfuration to some extent and benefiting the subsequent CO2 purification and storage. More progresses are greatly needed in high-efficiency and stable absorbents, high-efficiency reclaimer, and methods to reduce MEA loss by evaporation.

  • 247. Yang, J.
    et al.
    Yu, X.
    Yan, Jinyue
    KTH, School of Chemical Science and Engineering (CHE), Chemical Engineering and Technology, Energy Processes.
    Tu, S. -T
    Xu, M.
    CO2 capture using absorbents of mixed ionic and amine solutions2014In: Energy Procedia, 2014, p. 2849-2853Conference paper (Refereed)
    Abstract [en]

    Studies have been conducted to find new absorbents for post-combustion CO2 capture. To overcome the ILs' limits and meanwhile take their advantages, the mixed amine + IL + H2O solutions as CO2 capture absorbent were investigated in a CO2 absorption/desorption loop setup. It was found that with an increase in IL concentration, the viscosity of the mixed solution rose while the energy required for absorbent regeneration decreased. In addition, no IL loss was detected and the amine loss per ton of captured CO2 was considerably lower than that of aqueous amine solution. The viscosity of the best candidate of 30 wt% MEA + 40 wt% [bmim][BF4] + 30 wt% H2O is close to the value of aqueous amine solution, indicating that the ionic liquid disadvantage of high viscosity can be overcome for absorbent delivery of CO2 capture.

  • 248. Yang, Jie
    et al.
    Yu, Xinhai
    Yan, Jinyue
    KTH, School of Chemical Science and Engineering (CHE), Chemical Engineering and Technology, Energy Processes.
    Tu, Shan-Tung
    CO2 Capture Using Amine Solution Mixed with Ionic Liquid2014In: Industrial & Engineering Chemistry Research, ISSN 0888-5885, E-ISSN 1520-5045, Vol. 53, no 7, p. 2790-2799Article in journal (Refereed)
    Abstract [en]

    It is a focus to reduce the energy consumption and operating cost of CO2 capture from low-pressure flue gas streams of power plants using an aqueous amine-based absorbent. In this study, CO2 capture experiments were conducted in an absorption-desorption loop system using amine-based absorbents. The gas mixture containing CO2, O-2, SO2, and N-2 in the composition range of flue gas from coal-fired power plant after flue gas desulfurization was selected as the feed gas. For an aqueous amine solution, the largest contribution to monoethanolamine (MEA) loss was made by evaporation during desorption, followed by the formation of sulfate and heat-stable salts. To reduce MBA loss and meanwhile decrease the energy consumption during CO2 desorption, an aqueous amine solution mixed with ionic liquid (30 wt % MBA + 40 wt % [bmim][BF4] + 30 wt % H2O) was proposed. The energy consumption of the mixed ionic liquid solution for absorbent regeneration was 37.2% lower than that of aqueous MEA solution. The MEA loss per ton of captured CO2 for the mixed solution was 1.16 kg, which is much lower than that of 3.55 kg for the aqueous amine solution. No ionic liquid loss was detected. In addition, the mixed ionic liquid solution showed a low viscosity of 3.54 mPa s at 323 K, indicating that the ionic liquid disadvantage of high viscosity can be overcome for absorbent delivery of CO2 capture.

  • 249. Yang, Jin
    et al.
    Olsson, Alexander
    Yan, Jinyue
    KTH, School of Chemical Science and Engineering (CHE), Chemical Engineering and Technology, Energy Processes.
    Chen, B.
    A hybrid life-cycle assessment of CO2 Emissions of a PV water pumping system in China2014In: Energy Procedia, 2014, p. 2871-2875Conference paper (Refereed)
    Abstract [en]

    To achieve both water conservation and climate change mitigation benefits, photovoltaic water pumping (PVWP) system, which employs solar energy to fuel the water pumping system, has been a widely adopted solar energy technology in the last two decades. Although the PVWP system is driven by direct renewable flux, and has no onsite CO2 emissions, there must be energy consumed during the production of PV modules and the operation of water pumping system. Thus, we estimated the CO2 emissions of a PVWP system in Inner Mongolia, China in a life cycle perspective. A hybrid Life Cycle Analysis (LCA), which combines process-sum and economic input-out analysis was employed to reduce uncertainty. Results show that PVWP is a good choice for carbon emission reduction with carbon sequestration benefit much higher than the lifetime carbon emissions. The largest emitters are PV module and engineering, which should be the focus of carbon management of PVWP system.

  • 250. 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.

23456 201 - 250 of 284
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