期刊名称：IOP Conference Series: Earth and Environmental Science
印刷版ISSN：1755-1307
电子版ISSN：1755-1315
出版年度：2019
卷号：252
期号：3
页码：1-9
DOI：10.1088/1755-1315/252/3/032008
出版社：IOP Publishing
摘要：In order to make full use of the heat in the internal combustion engine exhaust pipe, based on the typical working condition, the numerical distributions of the pressure and temperature field were carried out. The three-dimensional steady calculation model of the fluid-solid coupling system was established between the exhaust gas and the thermoelectric generator. The structure of the collector was optimized in consideration of the uniformity temperature of the hot end, the continuous operating temperature limit and the back pressure of the exhaust pipe. Simultaneously, a flow diversion control strategy was firstly proposed to divert the exhaust gas. The result showed that, when the length, width and height of the collector box was 400mm 100mm and 110mm, the temperature of the hot side was well-distributed under both conditions. The temperature of the hot end reached 168.80°C, the steady output power was 132W, and the back pressure was 16.8kPa under normal condition. Under extreme condition there were 201.38°C, 186W, and 13.8kPa. Combining with the continuous operating limit of the hot side of TEMs-230°C, this structure can meet the temperature requirements in the hot side and keep in the sustainable range of thermoelectric material through diversion control.
