Internal combustion engines fueled by natural gas - hydrogen mixtures
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY, vol.29, no.14, pp.1527-1539, 2004 (SCI-Expanded, Scopus)
- Publication Type: Article / Article
- Volume: 29 Issue: 14
- Publication Date: 2004
- Doi Number: 10.1016/j.ijhydene.2004.01.018
- Journal Name: INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
- Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
- Page Numbers: pp.1527-1539
- Keywords: CNG, hydrogen, mixtures, engine
- Erciyes University Affiliated: Yes
Abstract
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.