ISSN Online: 2377-424X
ISBN Print: 978-1-56700-474-8
ISBN Online: 978-1-56700-473-1
International Heat Transfer Conference 16
THERMAL FEATURE OF A MODIFIED SOLAR PHASE CHANGE MATERIAL STORAGE WALL SYSTEM
Abstract
This work is to study a dual-channel and thermal-insulation-in-the-middle type solar PCM storage wall
(MSPCMW) system. The system has the following four independent functions: passive solar heating, heat
preservation, heat insulation, and passive cooling, and it can agilely cope with the requirements of climatization
of buildings in different seasons throughout the year, and are exactly suitable for building in regions
characterized by hot summer and cold winter. Based on the previous work, the present work deeply
experimentally analyzes thermal feature of the PCM plates for the system working in summer and winter modes
respectively. The results show that the temperature of the upper position of PCM plate is higher than that of the
lower position and the temperature difference between exterior and interior surfaces of PCM plates are small in
summer and winter mode. It indicates that the temperatures of PCM plates have a stratification phenomenon
along height and the encapsulated PCM has little temperature gradient through thickness direction.