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

Toshizaemom Noce, Rafael Rocha da Silva, Rafael Morais, Luis Carlos Monteiro Sales, Sérgio de Morais Hanriot, José Ricardo Sodré*

*Corresponding author for this work

Research output: Contribution to journalArticle

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.

Original languageEnglish
Pages (from-to)368-374
Number of pages7
JournalTransportation Research Part D: Transport and Environment
Volume65
Early online date20 Sep 2018
DOIs
Publication statusPublished - 1 Dec 2018

Fingerprint

Gasoline
ethanol
engine
Ethanol
Engines
energy
Brakes
Fuel consumption
fuel consumption
road
Crankshafts
Dynamometers
Internal combustion engines
vehicle
water
experiment
market
test
Water
Experiments

Keywords

  • Energy factor
  • Ethanol
  • Spark ignition engines
  • Specific fuel consumption
  • Willans line

Cite this

Noce, T., da Silva, R. R., Morais, R., Sales, L. C. M., Hanriot, S. D. M., & Sodré, J. R. (2018). Energy factors for flexible fuel engines and vehicles operating with gasoline-ethanol blends. Transportation Research Part D: Transport and Environment, 65, 368-374. https://doi.org/10.1016/j.trd.2018.09.002
Noce, Toshizaemom ; da Silva, Rafael Rocha ; Morais, Rafael ; Sales, Luis Carlos Monteiro ; Hanriot, Sérgio de Morais ; Sodré, José Ricardo. / Energy factors for flexible fuel engines and vehicles operating with gasoline-ethanol blends. In: Transportation Research Part D: Transport and Environment. 2018 ; Vol. 65. pp. 368-374.
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Noce, T, da Silva, RR, Morais, R, Sales, LCM, Hanriot, SDM & Sodré, JR 2018, 'Energy factors for flexible fuel engines and vehicles operating with gasoline-ethanol blends', Transportation Research Part D: Transport and Environment, vol. 65, pp. 368-374. https://doi.org/10.1016/j.trd.2018.09.002

Energy factors for flexible fuel engines and vehicles operating with gasoline-ethanol blends. / Noce, Toshizaemom; da Silva, Rafael Rocha; Morais, Rafael; Sales, Luis Carlos Monteiro; Hanriot, Sérgio de Morais; Sodré, José Ricardo.

In: Transportation Research Part D: Transport and Environment, Vol. 65, 01.12.2018, p. 368-374.

Research output: Contribution to journalArticle

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AU - Sodré, José Ricardo

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Noce T, da Silva RR, Morais R, Sales LCM, Hanriot SDM, Sodré JR. Energy factors for flexible fuel engines and vehicles operating with gasoline-ethanol blends. Transportation Research Part D: Transport and Environment. 2018 Dec 1;65:368-374. https://doi.org/10.1016/j.trd.2018.09.002