A comparative study on various turbocharging approaches based on IC engine exhaust gas energy recovery
A comparative study on various turbocharging approaches based on IC engine exhaust gas energy recovery
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DOI：
10.1016/j.apenergy.2013.07.023
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发表时间：
2014
期刊：
影响因子：
11.2
通讯作者：
Jianqin Fu;Jing-ping Liu;Yong Wang;Banglin Deng;Yanping Yang;Ren-hua Feng;Jing Yang
中科院分区：
文献类型：
--
作者：
Jianqin Fu;Jing-ping Liu;Yong Wang;Banglin Deng;Yanping Yang;Ren-hua Feng;Jing Yang
本文提出了两种新的增压方式：蒸汽涡轮增压和蒸汽辅助涡轮增压。两者都是基于内燃机（IC）废气能量回收的原理。为了论证两种增压新方案的优越性，在某轿车汽油机上进行了排气涡轮增压、蒸汽涡轮增压和蒸汽辅助涡轮增压的对比研究，分析了不同增压方式对内燃机性能和增压系统能量流的影响。结果表明：在整个转速范围内，蒸汽涡轮增压均能达到目标进气压力，而蒸汽辅助涡轮增压则能在低速工况下提高进气压力;节能潜力由高到低的顺序为蒸汽涡轮增压>蒸汽辅助涡轮增压>排气涡轮增压;随着内燃机转速的增加，汽轮增压系统的废气能量回收效率降低，最大值为6.5%，而蒸汽辅助涡轮增压和排气涡轮增压的废气能量回收效率则是先增加后降低。
In this paper, two kinds of novel boosting pressure approaches, steam turbocharging and steam-assisted turbocharging, have been proposed. And both are based on the principle of internal combustion (IC) engine exhaust gas energy recovery. In order to demonstrate the advantages of the two types of new turbocharging concepts, a comparative study among exhaust turbocharging, steam turbocharging and steam-assisted turbocharging was conducted on a passenger car gasoline engine, and the effects of various boosting pressure approaches on IC engine performances as well as turbocharging system energy flow were analyzed. The results show that, steam turbocharging can achieve the target intake pressure in the entire IC engine speed range, while steam-assisted turbocharging can improve IC engine intake pressure at the low-speed operating conditions; the energy saving potentials from high to low follow the subsequence of steam turbocharging, steam-assisted turbocharging and exhaust turbocharging; with the increasing of IC engine speed, the exhaust gas energy recovery efficiency of steam turbocharging system decreases and its maximum value is 6.5%, while the exhaust gas energy recovery efficiency of steam-assisted turbocharging and exhaust turbocharging first increases and then decreases.