Measurements and predictions of the fuel consumption and emission of a spark ignition engine fuelled with hydrogen-enriched gasoline

E. Sher, Y. Hacohen

Research output: Contribution to journalArticlepeer-review

28 Scopus citations

Abstract

The effect of the amount of hydrogen addition on the fuel consumption and emission of a spark ignition engine has been studied. Dynamometer test results for a wide range of engine speeds, engine loads, equivalent ratio and hydrogen enrichment under steady state operation are presented, and the engine requirements for minimum b.s.f.c. are specified. A detailed model to simulate a four-stroke cycle of a spark ignition engine fuelled with hydrogen-enriched gasoline was used to predict the optimal amount of hydrogen supplement as well as the corresponding minimum best torque (MBT) optimal throttle position and emissions levels of CO and NOx. It has been shown that a significant reduction in the b.s.f.c, in the order of 20 per cent, is achieved with hydrogen-enriched gasoline for a hydrogen-fuel mass ratio of 6 per cent and equivalence ratio of 0.65. A very smooth operation has been observed under these conditions. The energy conversion gain is prominent at partial loads and depends only to a limited extent on the engine speed.

Original languageEnglish
Pages (from-to)155-162
Number of pages8
JournalProceedings of the Institution of Mechanical Engineers, Part A: Journal of Power and Energy
Volume203
Issue number3
DOIs
StatePublished - 1 Jan 1989

ASJC Scopus subject areas

  • Energy Engineering and Power Technology
  • Mechanical Engineering

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