Abstract
This paper presents a case study of phase change cooling and heating wall radiant (PC-CHWR) air conditioning system application in an energy-saving renovation project in a laboratory in Wuhan, Hubei province in China. To test the thermal performance of the system, the PHOENICS software was utilized to simulate and analyse the indoor thermal environment in the laboratory under both winter and summer operating conditions. In addition, field experiments were also conducted under winter operation condition. By comparing the results between numerical simulation and field experiment, it is found that thermal performance of the PC-CHWR air conditioning system evaluated by these two evaluation methods are quite match. Moreover, the results also show that the PC-CHWR system can meet the cooling and heating load of the building within the acceptable range.
Highlights
Building energy-saving technologies have attracted widespread attention as building energy consumption has been increasing globally
Chen Chao et al [6] studied the feasibility of using composite phase change wall materials in passive solar houses in Beijing, where has higher solar radiation and higher solar radiation intensity in winter
The phase change cooling and heating wall radiant (PC-CHWR) air conditioning system was build up in a laboratory in Wuhan, where in the hot summer and cold winter zone in China. Both numerical simulation and field experiment were conducted to evaluate the performance of the PC-CHWR air conditioning system, which aiming to provide theoretical and experimental guidance for the application of the PC-CHWR air conditioning system
Summary
Building energy-saving technologies have attracted widespread attention as building energy consumption has been increasing globally. Even though there are many previous researches on phase change energy storage technologies, very few theoretical and experimental studies on the combination of phase change energy storage technology in walls with radiant heating and cooling systems are conducted. The phase change cooling and heating wall radiant (PC-CHWR) air conditioning system was build up in a laboratory in Wuhan, where in the hot summer and cold winter zone in China. Both numerical simulation and field experiment were conducted to evaluate the performance of the PC-CHWR air conditioning system, which aiming to provide theoretical and experimental guidance for the application of the PC-CHWR air conditioning system.
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