Internal combustion engines fueled by natural gas - hydrogen mixtures

Akansu S. O. , Dulger Z., Kahraman N. , Veziroglu T.

INTERNATIONAL JOURNAL OF HYDROGEN ENERGY, cilt.29, sa.14, ss.1527-1539, 2004 (SCI İndekslerine Giren Dergi) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 29 Konu: 14
  • Basım Tarihi: 2004
  • Doi Numarası: 10.1016/j.ijhydene.2004.01.018
  • Sayfa Sayıları: ss.1527-1539


In this study, a survey of research papers on utilization of natural gas-hydrogen mixtures in internal combustion engines is carried out. In general, HC, CO2, and CO emissions decrease with increasing H-2, but NOx emissions generally increase. If a catalytic converter is used, NOx emission values can be decreased to extremely low levels. Consequently, equivalence zero emission vehicles (EZEV) standards may be reached. Efficiency values vary with H-2 amount, spark timing, compression ratio, equivalence ratio, etc. Under certain conditions, efficiency values can be increased. In terms of BSFC, emissions and BTE, a mixture of low hydrogen percentage is suitable for using. (C) 2004 International Association for Hydrogen Energy. Published by Elsevier Ltd. All rights reserved.