Simulation Study on the Optimization of Solar Water Heating System in Passive Solar House - Case Study
Abstract
The design of the active solar heating system is different in the passive solar room due to its passive additional heat. The passive additional heat affected the active solar heating system thermal performance. So the optimization of the system is necessary. In this paper, a solar heating building with active and passive combination as the object of study. The TRNSYS simulation model of solar heating system was established. The accuracy of the simulation model was verified by field test of indoor thermal environment for three consecutive days in the heating season. Under the condition of typical meteorological data, the indoor thermal environment of the whole heating season was simulated and compared under four different conditions. The results show that when the active and passive solar heating technology coexists, the indoor air temperature has been significantly improved. The design of the active system does not take into account the influence of the passive solar room. The design parameters and operating parameters of the system were analyzed by simulation in this paper. The research can provide the basis for the optimization of the active solar heating system in the passive solar room, which is beneficial to the popularization and application of solar heating technology.