Design method of thermal insulation and volume ofplateau solar heating thermal storage systems

In view of the special climatic conditions of strong solar radiation, large air temperature difference and low atmospheric pressure in the Tibetan Plateau, the heat loss characteristics of the plateau solar heating thermal storage system is analysed, the probability distribution of cloudy days in typical plateau area is summarized, and the characteristics of solar radiation and building heating load are calculated. Through the simulation analysis, the functional relationship between the annual heat loss of the thermal storage system and the ratio of heat collection and storage and the storage volume is obtained. Then the thermal insulation materials suitable for the plateau thermal storage and the thermal insulation thickness in different thermal storage modes are recommended, and the thermal storage volumes under different thermal storage periods and different heat medium temperatures of heating terminals are acquired. The results can provide references for the refined design of the plateau solar heating thermal storage system.