Abstract
In the present study, shaped inorganic hydrated salt-based phase change materials (PCMs) were prepared using a high-absorbent resin (acted as the support material) and a water retaining agent. The synthesized materials were added to a prefabricated wall, and measurement points were placed on the low-temperature side of the wall. The heat transfer performance of the wall was tested by a multi-point heat flow meter. The temperature and the heat flow rate at the low-temperature side of the wall were compared with the heat transfer performances of an ordinary wall and an amorphous phase-change wall. The obtained results revealed that the wall with PCMs manifested stable heat transfer performance with good heat storage capacity; thus it caused an improvement in indoor thermal comfort and achieved a good energy-saving effect. Results of the present study demonstrate the feasibility of PCMs in wall energy storage applications.
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