Measuring study of heating performance of passive solar house with Trombe wall in Qinghai-Tibet plateau

The outside and inside air temperature, total and diffuse solar radiation intensity of horizontal and vertical plane of passive solar house with Trombe wall, the air layer temperature distribution, the temperature and velocity of air in vents, and heat flux of Trombe wall were measured in the Qinghai-Tibet Plateau region. The measuring analyses show that the passive solar house with Trombe wall has well heat-collecting and heat storage properties, and opening the vent of Trombe wall 2-3 hours later than the sunrise time and closed 1 hour earlier than sunset time more reasonable; the average heat efficiency and energy saving fractional can reach 69.7% and 72.8% respectively.