Research and development on solar wall component with color-changed

Passive solar house has been applied in cold area of China widely. As a case study, the optimization of structure and operation control strategies of solar wall with color-changed was studied by experimental in this paper. Firstly, the materials and structure of cover and insulation boards were optimized. Then, the problems of inconvenient manual operation and reverse cycle can be solved by temperature control damper, and experimental results showed that the inner wall surface temperature was increased about 0.5~1.2℃ by the sidewall air supply of temperature control damper. Meanwhile, experimental of operation control strategies results indicated that the best installation location of fan was at inlet. Compared to the fan installed at outlet, the heat supplied by solar wall was increased 88 ~ 215W/m². The experimental studies of variable mass flow rate showed that, under the situation of continuous operation, the instantaneous average heat supplied by solar wall was higher than equal time intervals intermittent operation 26 W/m². Finally, results showed the average thermal efficiency of solar wall is 48.8%. Compared with the reference house, the indoor temperature with solar wall can increased 2~6℃ in winter, and decreased 1~3℃ in summer.