Numerical estimation of exhaust gas fuel reforming of DME fueled engine

Abstract

Addition of hydrogen is effective for expanding the lean stability limit to improve the thermal efficiency in internal combustion engines, because hydrogen has high burning velocity. In this study, hydrogen production characteristics of exhaust gas fuel reforming of dimethyl ether (DME) fueled engine was investigated by chemical equilibrium calculation. As a result, DME reforming can produce more hydrogen compared with gasoline reforming, while it has lower energy recovery than gasoline reforming.