Thermoelectric Materials and Devices
Thermoelectric Materials and Devices
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热电材料与器件
DOI：
10.1039/9781782624042-00156
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发表时间：
2016
期刊：
影响因子：
--
通讯作者：
Stobart R
中科院分区：
文献类型：
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作者：
Stobart R
在典型的内燃机（ICE）中，只有三分之一的燃料能量转化为有用的轴功。1这部分是由于内燃机的运行模式，其中当燃烧产物中仍然有大量的能量含量时，需要启动气体交换过程。因此，一部分燃料焓被传递到发动机的排气和冷却系统，并损失到环境中。这种损失表明，如果可以设想出紧凑且具有成本效益的方法来回收甚至一部分这种能量，则发动机效率的改进具有很大的潜力。文献中已介绍的例子包括涡轮复合装置、2个底循环、3个热电发电机（TEG）、4个热声系统5和化学回热方法。6最近的一项研究表明，在联邦测试程序（FTP）测试中，仅通过捕获废气，乘用车汽车的燃料消耗量就可减少20
In a typical internal combustion engine (ICE) as little as one third of the fuel energy content is converted to useful shaft work. 1 This is a partly due to the mode of operation of the ICE in which the gas exchange process needs to be initiated when there is still substantial energy content in the products of combustion. Consequently, a proportion of fuel enthalpy is transferred to the exhaust and cooling systems of the engine and is lost to the environment. This loss suggests a significant potential for improvements in the efficiency of the engine, if compact-and cost-effective methods can be conceived to recover even a proportion of this energy. Examples that have been presented in the literature include turbo-compounding devices, 2 bottoming cycles, 3 thermoelectric generators (TEGs), 4 thermo-acoustic systems5 and chemical recuperation methods. 6 A recent study shows that the reduction of fuel consumption in passenger cars could be as high as 20% in Federal Test Procedure (FTP) tests simply by capturing the exhaust waste