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Title: Alternative Fuels DISI Engine Research ? Autoignition Metrics.

Abstract

Improved engine efficiency is required to comply with future fuel economy standards. Alternative fuels have the potential to enable more efficient engines while addressing concerns about energy security. This project contributes to the science base needed by industry to develop highly efficient direct injection spark igniton (DISI) engines that also beneficially exploit the different properties of alternative fuels. Here, the emphasis is on quantifying autoignition behavior for a range of spark-ignited engine conditions, including directly injected boosted conditions. The efficiency of stoichiometrically operated spark ignition engines is often limited by fuel-oxidizer end-gas autoignition, which can result in engine knock. A fuel’s knock resistance is assessed empirically by the Research Octane Number (RON) and Motor Octane Number (MON) tests. By clarifying how these two tests relate to the autoignition behavior of conventional and alternative fuel formulations, fuel design guidelines for enhanced engine efficiency can be developed.

Authors:
 [1];  [1]
  1. Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
Publication Date:
Research Org.:
Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
Sponsoring Org.:
USDOE Office of Energy Efficiency and Renewable Energy (EERE), Vehicle Technologies Office (EE-3V)
OSTI Identifier:
1420752
Report Number(s):
SAND-2018-1178R
660443
DOE Contract Number:  
AC04-94AL85000
Resource Type:
Technical Report
Country of Publication:
United States
Language:
English
Subject:
33 ADVANCED PROPULSION SYSTEMS

Citation Formats

Sjoberg, Carl Magnus Goran, and Vuilleumier, David. Alternative Fuels DISI Engine Research ? Autoignition Metrics.. United States: N. p., 2018. Web. doi:10.2172/1420752.
Sjoberg, Carl Magnus Goran, & Vuilleumier, David. Alternative Fuels DISI Engine Research ? Autoignition Metrics.. United States. doi:10.2172/1420752.
Sjoberg, Carl Magnus Goran, and Vuilleumier, David. Thu . "Alternative Fuels DISI Engine Research ? Autoignition Metrics.". United States. doi:10.2172/1420752. https://www.osti.gov/servlets/purl/1420752.
@article{osti_1420752,
title = {Alternative Fuels DISI Engine Research ? Autoignition Metrics.},
author = {Sjoberg, Carl Magnus Goran and Vuilleumier, David},
abstractNote = {Improved engine efficiency is required to comply with future fuel economy standards. Alternative fuels have the potential to enable more efficient engines while addressing concerns about energy security. This project contributes to the science base needed by industry to develop highly efficient direct injection spark igniton (DISI) engines that also beneficially exploit the different properties of alternative fuels. Here, the emphasis is on quantifying autoignition behavior for a range of spark-ignited engine conditions, including directly injected boosted conditions. The efficiency of stoichiometrically operated spark ignition engines is often limited by fuel-oxidizer end-gas autoignition, which can result in engine knock. A fuel’s knock resistance is assessed empirically by the Research Octane Number (RON) and Motor Octane Number (MON) tests. By clarifying how these two tests relate to the autoignition behavior of conventional and alternative fuel formulations, fuel design guidelines for enhanced engine efficiency can be developed.},
doi = {10.2172/1420752},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Thu Feb 01 00:00:00 EST 2018},
month = {Thu Feb 01 00:00:00 EST 2018}
}

Technical Report:

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