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Dreier, D. & Howells, M. I. (2019). OSeMOSYS-PuLP: A Stochastic Modeling Framework for Long-Term Energy Systems Modeling. Energies, 12(7), Article ID 1382.
Open this publication in new window or tab >>OSeMOSYS-PuLP: A Stochastic Modeling Framework for Long-Term Energy Systems Modeling
2019 (English)In: Energies, ISSN 1996-1073, E-ISSN 1996-1073, Vol. 12, no 7, article id 1382Article in journal (Refereed) Published
Abstract [en]

Recent open-data movements give access to large datasets derived from real-world observations. This data can be utilized to enhance energy systems modeling in terms of heterogeneity, confidence, and transparency. Furthermore, it allows to shift away from the common practice of considering average values towards probability distributions. In turn, heterogeneity and randomness of the real-world can be captured that are usually found in large samples of real-world data. This paper presents a methodological framework for an empirical deterministic-stochastic modeling approach to utilize large real-world datasets in long-term energy systems modeling. A new software systemOSeMOSYS-PuLPwas developed and is available now.It adds the feature of Monte Carlo simulations to the existing open-source energy modeling system (the OSeMOSYS modeling framework). An application example is given, in which the initial application example of OSeMOSYS is used and modified to include real-world operation data from a public bus transport system.

Place, publisher, year, edition, pages
MDPI, 2019
Keywords
driving cycle, energy modeling, OSeMOSYS, Python, real-world, transport
National Category
Mechanical Engineering
Identifiers
urn:nbn:se:kth:diva-252647 (URN)10.3390/en12071382 (DOI)000465561400199 ()2-s2.0-85065497585 (Scopus ID)
Note

QC 20190610

Available from: 2019-06-10 Created: 2019-06-10 Last updated: 2019-06-10Bibliographically approved
Dreier, D., Silveira, S., Khatiwada, D., Fonseca, K. V., Nieweglowski, R. & Schepanski, R. (2018). Well-to-Wheel analysis of fossil energy use and greenhouse gas emissions for conventional, hybrid-electric and plug-in hybrid-electric city buses in the BRT system in Curitiba, Brazil. Transportation Research Part D: Transport and Environment, 58, 122-138
Open this publication in new window or tab >>Well-to-Wheel analysis of fossil energy use and greenhouse gas emissions for conventional, hybrid-electric and plug-in hybrid-electric city buses in the BRT system in Curitiba, Brazil
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2018 (English)In: Transportation Research Part D: Transport and Environment, ISSN 1361-9209, E-ISSN 1879-2340, Vol. 58, p. 122-138Article in journal (Refereed) Published
Abstract [en]

This study estimates Well-to-Wheel (WTW) fossil energy use and greenhouse gas (GHG) emissions for six types of city buses with conventional, hybrid-electric and plug-in hybrid-electric powertrains, including two-axle, articulated and bi-articulated chassis in the BRT (Bus Rapid Transit) system in Curitiba, Brazil. Particular emphasis is put on the operation phase (Tank-to-Wheel, TTW) of the city buses using the Advanced Vehicle Simulator (ADVISOR). The simulations are based on real-world driving patterns collected from Curitiba, comprising 42 driving cycles that represent city bus operation on seven BRT routes with six operation times for each. Hybrid-electric and plug-in hybrid-electric two-axle city buses use 30% and 75% less WTW fossil energy per distance compared to a conventional two-axle city bus (19.46 MJfossil,WTW/km). This gives an absolute reduction of 1115 gCO2e,WTW/km in WTW GHG emissions when operating a plug-in hybrid-electric city bus instead of a conventional two-axle city bus (1539 gCO2e,WTW/km). However, a conventional bi-articulated city bus can be environment-friendlier than hybrid-electric city buses in terms of WTW fossil energy use and WTW GHG emissions per passenger-distance, if its passenger capacity is sufficiently utilised. Nonetheless, the plug-in hybrid-electric city bus remains the most energy-efficient and less polluting option. Hybrid-electric and plug-in hybrid-electric powertrains offer the possibility to achieve much higher levels of decarbonisation in the BRT system in Curitiba than the blending mandate of 7%vol biodiesel into diesel implemented in Brazil in 2016. In addition, the simulations show that TTW energy use can considerably vary by up to 77% between different operation times, BRT routes and types of city buses. In conclusion, advanced powertrains and large passenger capacity utilisation can promote sustainability in Curitiba's BRT system. The results of this analysis provide important insights for decision makers both in Curitiba and other cities with similar conditions.

Place, publisher, year, edition, pages
Elsevier, 2018
Keywords
Advanced powertrain, Bi-articulated bus, Bus rapid transit, Simulation, Tank-to-Wheel, Well-to-Wheel
National Category
Transport Systems and Logistics
Identifiers
urn:nbn:se:kth:diva-219634 (URN)10.1016/j.trd.2017.10.015 (DOI)000425198400010 ()2-s2.0-85035352688 (Scopus ID)
Funder
VINNOVA
Note

QC 20171211

Available from: 2017-12-11 Created: 2017-12-11 Last updated: 2018-11-28Bibliographically approved
Dreier, D., Silveira, S. & Ramos, S. M. (2016). Energy and Greenhouse Gas Emissions Scenarios for the Bus Rapid Transit System in Curitiba, Brazil: a well-to-wheel analysis. In: : . Paper presented at Urban Transitions Global Summit 2016, Shanghai, China, 5.–9. September 2016.
Open this publication in new window or tab >>Energy and Greenhouse Gas Emissions Scenarios for the Bus Rapid Transit System in Curitiba, Brazil: a well-to-wheel analysis
2016 (English)Conference paper, Poster (with or without abstract) (Other academic)
Keywords
Alternative fuel, biofuel, bus fleet, bus rapid transit, fossil energy consumption, global warming potential, well-to-tank, well-to-wheel
National Category
Energy Systems Transport Systems and Logistics
Research subject
Energy Technology; Transport Science
Identifiers
urn:nbn:se:kth:diva-190819 (URN)
Conference
Urban Transitions Global Summit 2016, Shanghai, China, 5.–9. September 2016
Projects
Smart city concepts in Curitiba – innovation for sustainable mobility and energy efficiency
Funder
VINNOVA
Note

QC 20161128

Available from: 2016-08-16 Created: 2016-08-16 Last updated: 2016-11-28
Dreier, D. & Silveira, S. (2016). Smart City Concepts in Curitiba - innovation for sustainable mobility and energy efficiency: Project NEWSLETTER, January 2016. KTH Royal Institute of Technology
Open this publication in new window or tab >>Smart City Concepts in Curitiba - innovation for sustainable mobility and energy efficiency: Project NEWSLETTER, January 2016
2016 (English)Other (Other (popular science, discussion, etc.))
Place, publisher, year, pages
KTH Royal Institute of Technology, 2016. p. 9
Keywords
Newsletter, Smart city concepts in Curitiba, Brazil
National Category
Energy Systems Infrastructure Engineering Transport Systems and Logistics Communication Systems
Identifiers
urn:nbn:se:kth:diva-185727 (URN)
Funder
VINNOVA
Note

QC 20160524

Available from: 2016-04-25 Created: 2016-04-25 Last updated: 2016-09-28Bibliographically approved
Dreier, D. & Silveira, S. (2016). Smart City Concepts in Curitiba - innovation for sustainable mobility and energy efficiency: Project NEWSLETTER, November 2016.
Open this publication in new window or tab >>Smart City Concepts in Curitiba - innovation for sustainable mobility and energy efficiency: Project NEWSLETTER, November 2016
2016 (English)Other (Other (popular science, discussion, etc.))
Publisher
p. 10
Keywords
Newsletter, Smart city concepts in Curitiba, Brazil
National Category
Energy Systems Infrastructure Engineering Transport Systems and Logistics Communication Systems
Identifiers
urn:nbn:se:kth:diva-200564 (URN)
Projects
Smart city concepts in Curitiba – innovation for sustainable mobility and energy efficiency
Funder
VINNOVA
Note

QC 20170201

Available from: 2017-01-30 Created: 2017-01-30 Last updated: 2017-01-30Bibliographically approved
Dreier, D., Silveira, S., Khatiwada, D., Fonseca, K. V. .., Nieweglowski, R. & Schepanski, R. (2015). Energy use and CO2 emissions of city buses in Curitiba, Brazil. In: : . Paper presented at Systems Analysis 2015,International Institute for Applied Systems Analysis (IIASA), Laxenburg, Austria,11.-13. November 2015. KTH Royal Institute of Technology
Open this publication in new window or tab >>Energy use and CO2 emissions of city buses in Curitiba, Brazil
Show others...
2015 (English)Conference paper, Poster (with or without abstract) (Other academic)
Place, publisher, year, edition, pages
KTH Royal Institute of Technology, 2015
Keywords
Advanced powertrains, bus rapid transit, emissions reduction, fuel economy, Tank-to-Wheel analysis, vehicle simulation, Emissionsverringerung, Fahrzeugsimulation, Fahrzeugwirkungsgrad, Fortschrittlicher Antriebsstrang, Schnellbussystem
National Category
Energy Engineering Energy Systems Vehicle Engineering
Research subject
Energy Technology; Transport Science
Identifiers
urn:nbn:se:kth:diva-179133 (URN)
Conference
Systems Analysis 2015,International Institute for Applied Systems Analysis (IIASA), Laxenburg, Austria,11.-13. November 2015
Funder
VINNOVA
Note

QC 20151211

Available from: 2015-12-10 Created: 2015-12-10 Last updated: 2015-12-11Bibliographically approved
Organisations
Identifiers
ORCID iD: ORCID iD iconorcid.org/0000-0002-0437-2093

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