Development of High Energy Efficiency Passive House Complete with Thermal Storage and Moisture Sorption and Desorption Capability

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The phase-change characteristic of PCM and the influence of phase-change thermal storage and moisture sorption and desorption capability on indoor hygrothermal environment were examined with the aim of effective utilization of solar heat by model experiments and numerical simulation. The main results obtained are as follows. The construction area of PCM, the temperature difference between melting point of PCM and heating preset temperature, the heat loss coefficient of buildings, the constructed amount of PCM have a profound effect on the hygrothermal environment and then those contributory factors are crucially important in the development of PCM building materials and solar heat utilization houses.