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Influence of port-inducted ethanol or gasoline on combustion and emission of a closed cycle diesel engine

Horng-Wen Wu, Ren-Hung Wang, Ying-Chuan Chen, Dung-Je Ou and Teng-Yu Chen

Energy, 2014, vol. 64, issue C, 259-267

Abstract: After most CO2 is removed from exhaust gas by aqueous KOH in the CO2 absorber, the exhaust gas is re-circulated and mixed with a fresh oxygen charge to constitute a CCDE (closed cycle diesel engine) system. This study then improved the combustion and emissions of the diesel engine in the CCDE system using diesel fuel as main fuel with ethanol or gasoline of various energy share ratios inducted into the inlet port. Isothermal lines and velocity distributions in the engine cylinder from the numerical results are used to explain the measured emission results from the diesel engine in the CCDE system with port-inducted fuel. The CCDE system effectively decreases smoke, NOx, and CO2 before the CO2 absorber using port-inducting ethanol or gasoline. In addition, the experimental results are consistent with the numerical results for the operating engine.

Keywords: Closed cycle diesel engine; Port-inducted ethanol or gasoline; Diesel as main fuel; Combustion and emission (search for similar items in EconPapers)
Date: 2014
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Handle: RePEc:eee:energy:v:64:y:2014:i:c:p:259-267