Ship machinery Modelling the effect of exhaust valve timing on exhaust thermal management of a diesel engine system

Honardar et al. (2011) investigate the effects of different ways (exhaust valve timing phase, main injection variation, post injection variation and throttle valve variation) to improve the exhaust temperature management on emissions, bsfc rise and external EGR requirements on diesel engines. It is asserted in the study that when exhaust valve phasing is advanced, exhaust temperature can be increased up to approximately 40°C, but there is also 11% bsfc growth in the system.