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Use of Life Cycle Analysis to Compare Various Vehicle Technologies on Energy Consumption and External Cost for Semi-Public Applications: Case Study, City of Tehran

Bagheri, Sahar | 2016

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  1. Type of Document: M.Sc. Thesis
  2. Language: Farsi
  3. Document No: 49308 (08)
  4. University: Sharif University of Technology
  5. Department: Mechanical Engineering
  6. Advisor(s): Hosseini, Vahid
  7. Abstract:
  8. With the road transportation vehicles being widely used, concerns have been increased regarding their unwanted effects. Air pollution, climate change, and oil supply security are among these effects. Many alternative fuels and propulsion systems have been proposed to be used instead of conventional ICE vehicles in recent decades. This project intends to conduct a Techno-Economic comparison between different vehicle powertrains so as to select the suitable choice to substitute conventional ICE vehicles. The vehicle options are ICE vehicles using both gasoline and CNG as fuels, Hybrid Electric Vehicles (HEVs), Plug-in Hybrid Electric Vehicles (PHEVs), and Electric Vehicles (EVs). The amount of energy consumption and emissions are either measured directly or obtained from literature. The final results will be employed by governments during future taxi fleet development. The results indicate that based on the electricity production process, electrified vehicles may emit less pollutants and consume less energy compared to their ICE counterparts. According to the results, substituting ICE vehicles with electrified ones will cut in fuel consumptions up to about 27 and 23% compared to ICE CNG and gasoline respectively. Furthermore, NOx emissions are less in HEVs to and extent of 90%. Besides, CO and HC emissions have shown to be less up to about 75-100% and 50-80% respectively. It has also been proved that fuel cycle stage plays a negligible role in the vehicle’s life cycle emissions. Moreover, economic calculations point to the fact that a few alterations in economic policies related to electrified vehicles will cause in an equal or even better economic conditions compared with ICE counterparts. Therefore, a huge portion of the Tehran air pollution issue might be solved substituting ICE vehicles with benign ones
  9. Keywords:
  10. Life Cycle Assessment ; Alternative Fuel ; Tehran City ; Energy Consumption ; Techno-Economoc Model ; External Costs

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