Effect of Coolant Water and Intake Air Temperatures on Thermal Efficiency of a Spark Ignition Engine

被引：0
|
作者：
Kuboyama, Tatsuya [1 ]
Moriyoshi, Yasuo [1 ]
Iwasaki, Mitsuru [2 ]
Hara, Junichiro [2 ]
机构：
[1] Chiba Univ, Dept Mech Engn, Chiba, Japan
[2] Calson Kansei Co Ltd, Saitama, Japan
来源：
2013 PROCEEDINGS OF SICE ANNUAL CONFERENCE (SICE) | 2013年
关键词：
Thermal efficiency; Spark ignition engine; Cooling water temperature; Intake air temperature;
D O I：
暂无
中图分类号：
TP [自动化技术、计算机技术];
学科分类号：
0812 ;
摘要：
An improvement of thermal efficiency is strongly demanded for gasoline engines. In this study, experiments were carried out to investigate the effects of intake air temperature and coolant temperature on brake thermal efficiency, heat loss and friction loss in a spark ignition gasoline engine. Experimental results showed that, intake air temperature has a little effect on brake thermal efficiency during partical load operation. During high load operation, a decrease in intake air temperature improved brake thermal efficiency due to an improvement in indicated thermal efficiency and decrease in exhaust loss. It was also revealed that the combination of high temperature cooling water for the engine block and low temperature cooling water for the cylinder heat is effective for improving brake thermal efficiency.
引用
收藏
页码：385 / 388
页数：4
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