Theoretical and experimental investigation of steam injected diesel engine with EGR


Kökkülünk G. , Parlak A. , Ayhan V., Cesur I., Gonca G. , Boru B.

ENERGY, vol.74, pp.331-339, 2014 (Journal Indexed in SCI) identifier identifier

  • Publication Type: Article / Article
  • Volume: 74
  • Publication Date: 2014
  • Doi Number: 10.1016/j.energy.2014.06.091
  • Journal Name: ENERGY
  • Journal Indexes: Science Citation Index Expanded, Scopus
  • Page Numbers: pp.331-339
  • Keywords: Diesel engine, Steam, Emissions, Combustion model, EGR, EXHAUST-GAS RECIRCULATION, EMISSION CHARACTERISTICS, EMULSIFIED DIESEL, COMBUSTION, PERFORMANCE, WATER, NOX, TEMPERATURE, ETHANOL, SMOKE

Abstract

Steam injection technique newly proposed with EGR (exhaust gas recirculation) is applied into a direct injection diesel engine to decrease NOx emissions for the objective of reaching the new emission regulations. Experimental and combustion model as a theoretical methodology has been done. Steam injected diesel engine with EGR has been performed using a combustion model for 20% steam (S20) and 10% EGR (E10) ratios of fuel mass injected per cycle at full-load conditions. The results have been compared with S20 in terms of performance and NO, CO, CO2, and HC emissions. In the experimental results, NO emissions decreased up to 48.3% at the condition of S20 + E10 when compared to S20 with the increase of 3.5% in SFC (specific fuel consumption). As a result, when the small deterioration in the SFC is tolerated, the presented study could be used as an essential tool by the real-engine designers. (C) 2014 Elsevier Ltd. All rights reserved.