Some opinions on solar energy hot water heating for buildings in Qinghai-Tibetan Plateau

By analysing characteristics of the local climate and heating load, thinks that solar radiation heat should be fully used in this region. Analyses the real time instant heat efficiency of solar heat collectors. Points out that only when the water temperature in heat collectors meets the requirement of heating can the solar heat collected be used as the basis for evaluating solar energy contribution rate. Discusses heat collecting, storing and taking of solar energy, and optimizing and combining of parameters of the auxiliary heat source system and indoor heating system. Puts forward the methods of design and application.