TY - JOUR
TI - Simulation of performance and nitrogen oxide formation of a hydrogen-enriched diesel engine with the steam injection method
AU - Gonca Guven
AU - Sahin Bahri
JN - Thermal Science
PY - 2015
VL - 19
IS - 6
SP - 1985
EP - 1994
PT - Article
AB - In the present study, steam injection method (SIM) is implemented to a  hydrogen-enriched diesel engine in order to improve the levels of performance  and NO emissions. As hydrogen enrichment method increases effective  efficiency, NO emissions could be increased. However, the SIM is used to  control NO emissions and improve the engine performance. Due to these  positive effects, hydrogen enrichment and the SIM)are applied into a diesel  engine by using a two-zone combustion model for30% hydrogen enrichment of the  fuel volume and 20% steam ratio of the fuel mass at full load conditions. The  results obtained are compared with conventional diesel engine (D), steam  injected diesel engine (D+S20), hydrogen-enriched diesel engine (D+H30) and  hydrogen-enriched diesel engine with steam injection (D+H30+S20) in terms of  performance and NO emissions. In the results, the effective efficiency and  effective power improve up to 22.8% and %3.1, as NO emissions decrease up to  22.1%. Hence, the hydrogen enrichment with steam injection method is more  environmentally friendly with better performance.