PERFORMANCE COMPARISON BETWEEN HYDROGEN AND GASOLINE FUELLED SPARK IGNITION ENGINE

Abstract

Due to its combustion properties, the hydrogen has a great potential in energetic improvement and emission performance of spark ignition (SI) engine. In this respect, the paper presents comparative results of the experimental researches carried on SI single cylinder engine fueled with gasoline or only hydrogen, at some engine speeds and full load. Direct injection hydrogen fueled engine power is greater with almost 30% comparative to gasoline engine due to cycle heat release increasing. The hydrogen direct injection method in the engine cylinder at the beginning of the compression stroke after the intake valve closed has been chosen to avoid reducing the power output per liter. Using this fueling method was possible to avoid the uncontrolled burning process for all engine operating regimes. Hydrogen supply system used is original and offers great flexibility in operation to establish the adjustments. The obtained results show that the engine fueled with hydrogen offers the possibility of qualitative load adjustment using for the engine performance improvement especially at partial loads. The paper presents a strategy for combining qualitative and quantitative setting adjustment in order to optimize engine operation at all regimens.

Keywords

Dates

  • Submission Date2011-02-03
  • Revision Date2011-07-18
  • Acceptance Date2011-08-24

DOI Reference

10.2298/TSCI110203090N

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