Experimental investigation on diesel engine's waste heat capacity under mapping characteristics

作     者：TIAN Hua ZHANG ChengYu LI XiaoNing SHU GeQun 

作者机构：State Key Laboratory of Engines Tianjin University 

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

年 卷 期：2015年第58卷第1期

页      面：9-18页

核心收录：

学科分类：0810[工学-信息与通信工程] 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] 0805[工学-材料科学与工程（可授工学、理学学位）] 0702[理学-物理学] 0812[工学-计算机科学与技术（可授工学、理学学位）] 

基　　金：supported by the National Natural Science Foundation of China(Grant No.51206117) 

主　　题：waste heat recovery mapping characteristics diesel engine energy balance exergy analysis 

摘      要：Waste heat recovery for internal combustion engine(ICE)has been considered as an important strategy to improve efficiency and promote fuel economy,thus alleviating the problems of energy shortage and environmental *** paper investigates the characteristics of various kinds of waste heat energy,namely,waste heat in exhaust,cooling water and charge air,over the engine’s whole operating *** on the energy balance experiments,the energy distribution of a conventional heavy-duty diesel engine is obtained under mapping *** to exergy analysis,the energy recovery potential for waste heat is studied as *** experimental results indicate that exhaust energy increases with engine speed and load,while cooling water energy is more sensitive to load,especially at low and middle *** air energy,on the other hand,mainly counts on speed rather than *** energy possesses the highest recovery potential in terms of both quantity and *** waste heat recovery,a dramatic improvement in engine efficiency is achievable,actually,the maximum value can amount to 60%or even more.