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Design and Analysis of a Small Sewage Source Heat Pump Triple Supply System

Chunxue Gao1,*, Yu Hao1, Qiuxin Liu1,2
1 College of Urban Construction, Wuhan University of Science and Technology, Wuhan, 430065, China
2 City College, Wuhan University of Science and Technology, Wuhan, 430083, China
* Corresponding Author: Chunxue Gao. Email:

Energy Engineering 2021, 118(3), 667-678.

Received 21 October 2020; Accepted 10 December 2020; Issue published 22 March 2021


Based on the characteristics of sewage from beauty salons, a simulation model of a small sewage source heat pump triple supply system that can be applied to such places is established to optimize the operating conditions of the system. The results show that with the increase of sewage temperature and flow, the performance of the system also increases. In summer conditions, the system provides cooling, recovers waste heat and condensed heat from sewage, with a COP value of 8.97; in winter conditions, the system heats and produces hot water, with a COP value of 2.44; in transitional seasons, only hot water is produced. The COP value is 2.75. Compared with the traditional systems which refers to the air source heat pump and hot water boiler system currently used in beauty salons, this system can save energy by 50.9%.


Triple supply system of small sewage source heat pump; simulation; system optimization; energy saving and environmental protection

Cite This Article

Gao, C., Hao, Y., Liu, Q. (2021). Design and Analysis of a Small Sewage Source Heat Pump Triple Supply System. Energy Engineering, 118(3), 667–678.

This work is licensed under a Creative Commons Attribution 4.0 International License , which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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