An experimental study on performance and emission characteristics of a methane-hydrogen fuelled gasoline engine


ACIKGOZ B., ÇELİK C.

INTERNATIONAL JOURNAL OF HYDROGEN ENERGY, vol.37, no.23, pp.18492-18497, 2012 (Journal Indexed in SCI) identifier identifier

  • Publication Type: Article / Article
  • Volume: 37 Issue: 23
  • Publication Date: 2012
  • Doi Number: 10.1016/j.ijhydene.2012.09.037
  • Title of Journal : INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
  • Page Numbers: pp.18492-18497
  • Keywords: Hydrogen, Spark ignition engine, Emission, Performance characteristics, SPARK-IGNITION ENGINE, RESEARCH-AND-DEVELOPMENT

Abstract

In this paper, the performance and emission characteristics of a conventional twin-cylinder, four stroke, spark-ignited (SI) engine that is running with methane-hydrogen blends have been investigated experimentally. The engine was modified to realize hydrogen port injection by installing hydrogen feeding line in the intake manifolds. The experimental results have been demonstrated that the brake specific fuel consumption (BSFC) increased with the increase of hydrogen fraction in fuel blends at low speeds. On the other hand, as hydrogen percentage in the mixture increased, BSFC values decreased at high speeds. Furthermore, brake thermal efficiencies were found to decrease with the increase in percentage of hydrogen added. In addition, it has been found that CO2, NOx and HC emissions decrease with increasing hydrogen. However, CO emissions tended to increase with the addition of hydrogen generally increase. It has been showed that hydrogen is a very good choice as a gasoline engine fuel. The data are also very useful for operational changes needed to optimize the hydrogen fuelled SI engine design. Copyright (c) 2012, Hydrogen Energy Publications, LLC. Published by Elsevier Ltd. All rights reserved.