Abstract
Phase change material (PCM) combined with building envelopes is an effective approach to establish a comfortable indoor thermal environment in summer. Thermal storage performance of PCM wallboard relies on the outdoor climatic conditions with suitable temperature. In the present paper, the thermal performance of PCM wallboard under different climate conditions is experimental investigated in artificial controlled conditions. The experimental conditions are based on typical meteorological year data of five cities in Northwest China. Two valuation indexes are proposed to quantitatively describe the climate characteristics. The experimental results highlight that the PCM wallboard thermal performance is significantly affected by temperature characteristics. In the climate condition of Xi’an, the PCM wallboard can reduce 88.9% temperature accumulation value. This work could provide reference for the applicability analysis and thermal design of PCM envelopes in different climate conditions.
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