Energy and exergy analysis on gasoline engine based on mapping characteristics experiment

被引：171

作者：

Fu, Jianqin ^{[1
,2
]}

Liu, Jingping ^{[1
]}

Feng, Renhua ^{[1
]}

Yang, Yanping ^{[1
]}

Wang, Linjun ^{[3
]}

Wang, Yong ^{[1
]}

机构：

[1] Hunan Univ, State Key Lab Adv Design & Mfg Vehicle Body, Changsha 410082, Hunan, Peoples R China

[2] Univ Michigan, Coll Engn & Comp Sci, Dearborn, MI 48128 USA

[3] China Three Gorges Univ, Coll Mech & Mat Engn, Yichang 443002, Peoples R China

来源：

APPLIED ENERGY | 2013年 / 102卷

关键词：

Gasoline engine; Energy balance; Waste heat recovery; Energy grade; Exergy analysis; THERMAL BALANCE; HEAT-RECOVERY; SI ENGINE;

D O I：

10.1016/j.apenergy.2012.08.013

中图分类号：

TE [石油、天然气工业]; TK [能源与动力工程];

学科分类号：

0807 ; 0820 ;

摘要：

In order to evaluate the energy utilization efficiency of gasoline engine and predict the recovery potential for waste heat energy, energy distribution and waste heat energy characteristics of a naturally aspirated gasoline engine have been studied by combining the methods of energy and exergy analysis. During the research processes, engine energy balance tests were conducted under mapping characteristics, and the parameters required for calculating the energy balance and exergy balance were measured. On this basis, waste heat recovery potential and gasoline engine total exergy efficiency were studied by using the method of exergy analysis. Research results show: at low-speed and low-load, waste heat energy mainly focuses on cooling water; at high-speed and high-load, exhaust gas energy is larger than cooling water energy not only in quantity, but also in exergy percentage and exergy efficiency; the highest exhaust gas exergy efficiency appears in high-speed and high-load area, while the highest cooling water exergy efficiency appears in low-speed and low-load area; theoretically, total fuel efficiency of this gasoline engine can be nearly improved by a time through waste heat recovery, and the maximum total fuel efficiency can reach 60%. (c) 2012 Elsevier Ltd. All rights reserved.

引用

页码：622 / 630

页数：9

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