Simulation Research on the Thermal Performance of the Cooling Ceiling Embedded with Phase Change Material for Energy Storage

Abstract

A radiant cooling ceiling which is embedded with capillary pipes and phase change material to store and supply cool was put forward. The mathematical model of such cooling ceiling which runs intermittently was set up to analyze its thermal performance. The influence of phase change material thermal storage performances on the average heat flux and energy storage ratio of the cooling ceiling was analyzed. The main factors affecting the thermal performance of the ceiling was obtained by sensitivity analysis. The cooling storage performance differences between the ceiling embedded with phase change material and the concrete ceiling were comparatively analyzed. The research results show that the energy storage ratio of the phase change energy storage ceiling is higher than that of the concrete ceiling.