ANALYSIS OF THE EFFECT ON OPTIMIZED CONTROL OF INDOOR CLIMATE OF BUILDING WITH SOLAR AIR COLLECTOR FOR HEATING IN COLD AREAS IN CHINA

摘要

Stabilizing the indoor air temperature and optimizing the distribution of heat are the important parameters to improve the performance of solar air heating building. This study analyzed the influence of the concrete slab's behavior as thermal mass to smoothing the fluctuation of temperature by experimental research on the real building with south wall-mounted solar air collector under different conditions. Then, based on the experimental results, the impacts of different thermal mass levels and the position of thermal mass in the building on indoor thermal environment were analyzed by using the software EnergyPlus. Main conclusions are drawn as follows: the total thermal capacity of building bigger, the smaller the temperature's fluctuation, yet, when the capacity were big enough this effect can be neglected; the best capacity ratio of external thermal mass to internal thermal mass is 5:1; the heat transfer coefficient of internal thermal mass is the bigger, the better.