Optimal heat release shaping in a reactivity controlled compression ignition (RCCI) engine
Carlos GUARDIOLA
Benjamín PLA
Antonio GARC(I)A
Vicente BORONAT
摘要：The present paper addresses the optimal heat release (HR) law in a single cylinder engine operated under reactivity controlled compression ignition (RCCI) combustion mode to minimise the indicated specific fuel consumption (ISFC) subject to different constraints including pressure related limits (maximum cylinder pressure and maximum cylinder pressure gradient).With this aim,a 0-dimensional (0D) engine combustion model has been identified with experimental data.Then,the optimal control problem of minimising the ISFC of the engine at different operating conditions of the engine operating map has been stated and analytically solved.To evaluate the method viability a data-driven model is developed to obtain the control actions (gasoline fraction) leading to the calculated optimal HR,more precisely to the optimal ratio between premixed and diffusive combustion.The experimental results obtained with such controls and the differences with the optimal HR are finally explained and discussed.
机标关键词：operating conditionspressure gradientexperimental datafuel consumptioncombustion modelthe differencessingle cylinderoptimal control
论文发表日期：2017-01-01
在线出版日期：2025-08-15（本平台首次上网日期，不代表文献的发表时间）
页数：12( 117-128 )
英文信息