Gasoline-diesel dual fuel intelligent charge compression ignition(ICCI)combustion:Conceptual model and comparison with other advanced combustion modes

作     者：LI ZiLong QIAN Yong HUANG Guan ZHAO WenBin ZHANG YaoYuan LU XingCai LI ZiLong;QIAN Yong;HUANG Guan;ZHAO WenBin;ZHANG YaoYuan;LU XingCai

作者机构：Key Laboratory for Power Machinery and Engineering of M.O.E.Shanghai Jiao Tong UniversityShanghai 200240China 

出 版 物：《Science China(Technological Sciences)》 (中国科学（技术科学英文版）)

年 卷 期：2021年第64卷第4期

页      面：719-728页

核心收录：

学科分类：080703[工学-动力机械及工程] 08[工学] 0807[工学-动力工程及工程热物理] 

基　　金：supported by the National Natural Science Foundation of China(Grant Nos.51961135105 51425602) 

主　　题：intelligent charge compression ignition(ICCI) dual-fuel direct injection system gasoline diesel high-efficiency clean combustion 

摘      要：The internal combustion engines can remain the advantage over competitor technologies for automotive driven,especially the engine efficiency,exceeded 50%while maintaining ultra-low *** this paper,a novel combustion mode characterized by dual high-pressure common-rail direct injection systems,denoted as intelligent charge compression ignition(ICCI)combustion,is proposed to realize high efficiency and clean combustion in wide engine operating ***,commercial gasoline and diesel,which are considered to be complementary in physical and chemical properties,are directly injected into the cylinder by the two independent injection systems,*** this unique design,the in-cylinder air-fuel mixtures can be flexibly adjusted by regulating injection timing and duration of different fuels,consequently obtaining suitable combustion phase and heat release *** ICCI mode can widely run from indicated mean effective pressure 2 bar to 16 bar with an utterly controllable cylinder pressure rising rate,around 50%indicated thermal efficiency and low NOxemissions.A series of experiments were carried out to compare the combustion and emissions of ICCI with other combustion modes(including conventional diesel combustion,reactivity-controlled compression ignition,partially premixed combustion,and gasoline compression ignition).The results show that at the medium engine loads,ICCI mode can reach much high indicated thermal efficiency,especially up to 52%along with extremely low ***,ICCI mode can realize real-time adjustments of in-cylinder mixture stratification and instantaneous combustion mode switch in one cycle at any operating conditions,and has an excellent commercial application prospect for energy conservation and environmental improvement.