Renewable Energy In Cold Region Heating Theappliaction Technique Research

In this paper the climate characteristic of cold region, winter heating time is long, the heat load is bigger, but summer air conditioning period is short, compared with characteristics of the thermal load smaller discussed, if the sole use of ground-source heat pump system with heating, refrigerating, will cause of ground-source heat pump system for different soil take heat and heat exchanger, soil near the soil temperature will be reduced year by year, although every decline is not particularly obvious, but if long time running around, if the heat exchanger soil temperature field will appear irreparable deterioration, and if around the heat exchanger, soil temperature gradually reduce heat pump COP value will gradually decreases, can appear even heating deficiency of the phenomenon. Therefore, ground-source heat pump system mainly suitable for hot load close area throughout the year. In order to soil temperature field around the heat exchanger balance, ensure the efficient operation heat pump units, we must to supplement heat. In soil In this case, we put forward the summer sun heat storage reservoirs deep soil, added to the ground source heat pump year-round operation caused when underground heat loss. To achieve the goal of energy saving. Due to the different, solar energy resources in cold region division summer sun radiate strong in winter heating period, but the solar radiation is relatively weak, in order to reduce the system initial investment, narrowing the collection hot area, in winter cannot use solar energy heating alone. This paper put forward the summer sun thermal storage in deep soil reservoir, the ground source heat pump system of the temperature field around caused by temperature difference in make amends. The calculation results show that the system greatly boost during operation of the system, ensure the soil COP coefficient of thermal equilibrium, can guarantee system normal years of use again efficient operation. This technology in abroad have a lot of research, but it is applied in our country should belong to initial stage is less.