Energy factors for flexible fuel engines and vehicles operating with gasoline-ethanol blends

Noce, Toshizaemom and da Silva, Rafael Rocha and Morais, Rafael and Monteio Sales, Luis Carlos and Hanriot, Sergio de Morais and Sodre, Jose Ricardo (2018) Energy factors for flexible fuel engines and vehicles operating with gasoline-ethanol blends. Transportation Research Part D: Transport and Environment, 65. pp. 368-374. ISSN 1361-9209

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Abstract

This work investigates the energy factors for fuel conversion from the analysis of brake specific fuel consumption (BSFC) maps of a sample of 15 engines, representative of 75% of current models available in the Brazilian market. The method also employs the engine driving patterns of power output versus crankshaft speed obtained from bench dynamometer tests. The energy factors obtained from the engine analysis was validated against experiments carried out with two production vehicles in laboratory tests following the 1975 US Federal Test Procedure (FTP-75) procedure and road tests following 16 different urban and highway routes. The fuels used in the tests were hydrous ethanol (E100, 6 v/v % water) and a blend of 22 v/v % anhydrous ethanol and 78 v/v % gasoline (E22). The energy factors found from the 3D engine BSFC map analysis were higher than those obtained from the Willans line, currently adopted as a standard, by 52% for E22 and 57% for E100. The results from the 3D engine BFSC maps and the first vehicle following the FTP-75 cycle and 15 road routes were similar, also close to the results from the second vehicle, qualifying them to be representative of modern flexible fuel spark ignition engines and vehicles.

Item Type: Article
Uncontrolled Keywords: Ethanol; Energy factor; Specific fuel consumption; Willans line; Spark ignition engines
Subjects: H800 Chemical, Process and Energy Engineering
Divisions: Faculty of Computing, Engineering and the Built Environment
Faculty of Computing, Engineering and the Built Environment > School of Engineering and the Built Environment
Faculty of Computing, Engineering and the Built Environment > School of Engineering and the Built Environment > Advanced Design Engineering
Faculty of Computing, Engineering and the Built Environment > School of Engineering and the Built Environment > Advanced Systems Engineering
UoA Collections > REF 2021 UoA12: Engineering
Depositing User: Ian Mcdonald
Date Deposited: 28 Sep 2018 11:13
Last Modified: 28 Sep 2018 14:27
URI: http://www.open-access.bcu.ac.uk/id/eprint/6422

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