THERMAL BEHAVIOR ANALYSIS OF ENCLOSED PHASE CHANGE MATERIAL IN SOLAR FLOOR HEATING SYSTEM

چکیده مقاله

In this study, application of enclosed phase change material (PCM) in the solar and low-temperature hot water radiant floor heating is numerically investigated. In order to obtain the best performance of PCM, a radiant heating structure of the energy storage floor is designed，which places heat pipes in the enclosed phase change material (PCM) layer, without concrete in it. The PCM thermal storage time is considered in relation to the floor surface temperature under different boundary conditions. Moreover the PCM thermal storage time is numerically estimated.