Combination Of Active And Passive Solar Heating System Of Comprehensive Performance

With the development of economy and the improvement of people’s living standard, the building energy consumption has increased year by year, the energy consumption of2/3use in the construction of heating and hot water supply, for the use of the characteristics of the energy consumption of the building, considering that China has abundant solar energy resources, how to make use of solar energy for heating and hot water supply has become an important way of building energy conservation. Domestic scholars on the study of the use of solar energy in the form of the building on the passive solar house majority, for the study of solar heating system with active and passive combination is less, the existing research is mostly limited to the theoretical analysis and the feasibility of the design. This paper carried out the following work:1) According to the characteristics of the rural construction to build a combination of active and passive solar heating system experimental platform, the experimental platform is composed of three parts, the passive part is in the form of additional sunshine room style sun room, the active part of the form of the solar water heating system with air source heat pump heating and as the auxiliary heat source, the end of the low temperature hot water heating radiant floor, the room temperature control mode to achieve the function of the heating system;2) Through the contrast test solar house and real verification energy-saving effect of the sun room, and test the reliability simulation of solar house and the comparison of the real DeST software, analyzed the influence factors of the solar house, the best operation mode, energy saving contribution of solar house calculated solar house heating season the utilization rate ofthe reliability of DeST simulation;3)The combination of active and passive solar heating system temperature control model is tested, the results show that the system runs at room temperature can meet the requirements of comfort, but found that lack of room temperature control model in the process of operating,one is system control mode for feedback control by a single signal system at room temperature, there is too fast or too slow shortcomings of passive and active parts of the control, two is the high energy consumption of the air source heat pump. Aiming at the temperature control model of the problem, put forward the improvement scheme of time control, to solve the problem of high energy consumption of the air source heat pump. Suggested a new combination of active and passive solar heating system control scheme combined with the temperature control mode and time of operation scheme;4) On the annual energy consumption system is calculated, the economy of the system operation was calculated, and the comparison section reduction operation and the common heating of the earth.Combination of active and passive solar energy heating system has not only the economic advantages, but also has significant energy saving effect, can be widely used in the construction of the independent. The popularization and application of this system can not only promote the technology development of our country, the application of solar energy utilization and industrialization level, and can also achieve national energy-saving emission reduction targets to reduce a wide range of fog and haze plays an important role.