Experimental study on performance of solar energy phase change heat storage device for small wooden structure buildings

Taking the small wooden structure buildings in the areas rich in solar energy as the research object, combined with the most unfavorable working conditions in an extreme climate, this paper designs a multi-functional phase change heat storage device that can make full use of renewable energy, occupies a small area, and has high heat storage density and good heat storage and release performance. A test bench is set up to study the factors affecting the performance of this device. The results show that the device can meet the load characteristics of building heating and domestic hot water requirements, meet the functions of extreme climate conditions and conventional climate conditions, and effectively coordinate the energy supply and demand contradiction of small wooden structure solar energy buildings.