Data Measurement and Analysis of a Solar Heating System with Seasonal Storage

The technologies for seasonal thermal energy storage are of great significance in balancing the energy utilization and in enabling the renewable sources, especially solar energy, to be more widely used. The solar heating system with seasonal storage discussed in this paper is located in LuoYang City (Approx. E112’, N34.5’), in HeNan Province of China. The working data of the whole system, including temperatures of different parts, water flow, thermal energy, and solar irradiation, etc. are measured continuously and recorded using the technology of internet remote data transmission. The efficiency of the solar heating system is considered to be good when operating in general weather conditions, for example, 45% on sunny days. The average heat loss factor of the heat storage tank is only 0.50W/(K·m3),the ratio between surface and volume is about1.08 1/m.