Experimental and Numerical Study on the Insulation Performance of a Photo-Thermal Roof in Hot Summer and Cold Winter Areas

The use of a solar architecture system is feasible way to reduce the energy consumption building. also has important significance “Dual-carbon” plan. In this study, heat transfer characteristics photo-thermal roof were analyzed in hot summer and cold winter zones; model calculate insulation performance was established. climate, thermal performances an ordinary explored through experiments simulations. results showed that temperature lower than those roof. Heat can be changed by adjusting water flow collectors. saturation materials factor affects Compared with roof, change shown have less impact on increased from 0 30%, while per unit area only 0.9 W/m2; 97.3% effect reducing material thickness for When reduced 100 mm mm, average indoor non-working reached 38.5 °C 27.1 respectively. had little air temperature. research provide reference energy-saving design new buildings transformation existing buildings.