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ISSN Online: 2379-1748

ISBN Flash Drive: 978-1-56700-469-4

ISBN Online: 978-1-56700-470-0

Second Thermal and Fluids Engineering Conference
April, 2-5, 2017, Las Vegas, NV, USA


Get access (open in a dialog) pages 2353-2362
DOI: 10.1615/TFEC2017.ihe.018314


A large amount wastewater heat is without recovery in China. The wastewater heat not only wastes, but also causes heat pollution. This paper presents a waste heat recovery solution based on thermoelectric power generation technology. The general structure of an air-cooling heat recovery device is designed. The physical model is established and solved. The temperature changing law along the flow direction is obtained. The effects of main factors are analyzed, such as thermoelectric module geometry, heat sink geometry and wastewater flow rate. The results show that wastewater temperature decreased 0.19° per meter in the flow direction with a 120mm wide square pipe. The area power density of the thermoelectric module is about 0.30kW/m2 and the efficiency is about 1.28%.