24 June 2014

DESIGN AND PERFORMANCE ASSESSMENT OF THERMAL COMPREHENSIVE UTILIZATION SYSTEM: CASE STUDY

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For the purpose of recovering waster heat/cool from cooling tower and exhaust air, the paper brought up a thermal comprehensive utilization system (TCUS) based on the case
of People’s Square in Shanghai, China. It uses heat pump as major devices, and water loop to transmit heat in multiple buildings. A triple-fluid heat exchanger is developed and
introduced into the system as well. According to modeling and performance assessment
results for 6 cities in China, TCUS can be used in different regions with different climate features, and will save energy compared to conventional air-conditioning system, especially
in cold and severe cold region. However, the problems of small temperature difference between high-temperature and low-temperature water loop in cooling season, indicates heat transfer efficiency of A triple-fluid heat exchanger need to be improved.