Estimating Heat-Release and Mass-of-Mixture Burned from Spark-Ignition Engine Pressure Data

Kwang Min Chun, John B. Heywood

Research output: Contribution to journalArticle

119 Citations (Scopus)

Abstract

A First Law analysis based on the cylinder pressure variation during combustion is a commonly used diagnostic for determining actual spark-ignition engine burning rates. Both simple one-zone and more complex two-zone models have been developed for this purpose. It is shown that the fraction of the fuel's chemical energy which has been released and the fraction of fuel-air mixture burned, within the engine's cylinder, can be accurately estimated from a one-zone analysis if appropriate values for the “average ratio of specific heats”, γ, of the one-zone contents are used. These values are determined by matching the output of the one-zone analysis to that of the more rigorous two-zone analysis of the same cylinder pressure data. Use of this one-zone burning rate analysis procedure is illustrated.

Original languageEnglish
Pages (from-to)133-143
Number of pages11
JournalCombustion Science and Technology
Volume54
Issue number1-6
DOIs
Publication statusPublished - 1987 Aug 1

Fingerprint

spark ignition
Engine cylinders
Internal combustion engines
engines
burning rate
estimating
heat
chemical energy
Specific heat
specific heat
output
air
Air
Hot Temperature

All Science Journal Classification (ASJC) codes

  • Chemistry(all)
  • Chemical Engineering(all)
  • Fuel Technology
  • Energy Engineering and Power Technology
  • Physics and Astronomy(all)

Cite this

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abstract = "A First Law analysis based on the cylinder pressure variation during combustion is a commonly used diagnostic for determining actual spark-ignition engine burning rates. Both simple one-zone and more complex two-zone models have been developed for this purpose. It is shown that the fraction of the fuel's chemical energy which has been released and the fraction of fuel-air mixture burned, within the engine's cylinder, can be accurately estimated from a one-zone analysis if appropriate values for the “average ratio of specific heats”, γ, of the one-zone contents are used. These values are determined by matching the output of the one-zone analysis to that of the more rigorous two-zone analysis of the same cylinder pressure data. Use of this one-zone burning rate analysis procedure is illustrated.",
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Estimating Heat-Release and Mass-of-Mixture Burned from Spark-Ignition Engine Pressure Data. / Chun, Kwang Min; Heywood, John B.

In: Combustion Science and Technology, Vol. 54, No. 1-6, 01.08.1987, p. 133-143.

Research output: Contribution to journalArticle

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