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An Investigation of SI Engine Performance Characteristics Changes under Fuel Switch from Gasoline to Bioethanol

Imani, Amin | 2018

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  1. Type of Document: M.Sc. Thesis
  2. Language: Farsi
  3. Document No: 51946 (08)
  4. University: Sharif University of Technology
  5. Department: Mechanical Engineering
  6. Advisor(s): Hosseini, Vahid; Shafii, Behshad
  7. Abstract:
  8. Alternative fuels are considered as a solution to increase energy security, reduce dependence on conventional fossil fuels (gasoline and diesel), and reduce greenhouse gas emissions. In this context, bioethanol has been very much considered in recent years. This fuel is combined with gasoline and used by cars. Flexible fuel vehicles are cars that can be used in various blend of gasoline and ethanol. Ethanol has a higher octane number than gasoline, and its mixture with gasoline increases the number of octane fuels. However, this fuel has a lower thermal energy than gasoline, which increases the fuel consumption of ethanol and gasoline relative to pure gasoline. The purpose of this study is to investigate the effect of ethanol on combustion parameters and performance characteristics of an engine based on one of the domestic engines. Therefore, considering the importance of biofuels, the global increase in the production of FFVs and the benefits of these vehicles in the fuel and fuel performance debate, this study examines and analyzes fuel changes in order to feasibility of providing a vehicle capable of working with a mixture of gasoline and ethanol , Paid. In this study, the effect of various ethanol percentages on the performance parameters of the engine, including cylinder pressure, power, torque in the GT-POWER software has been investigated. This software will provide an overview of the effects of different parameters on engine performance and the prediction of how the engine will be calibrated
  9. Keywords:
  10. Flexible Fuel Vehicles ; Alternative Fuel ; Internal Combustion Engines ; Ethanol ; GT-Power Software

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