Test and Research on Phase Change Energy Storage Floor Heating System in Active Solar House

Taking into account the building itself energy saving,high-performance building envelop which insulation properties is comparatively better is used to build an active solar house.Using solar hot water as a heat source,phase change energy storage floor heating system and dry-pipe floor heating system are arranged respectively in experimental room.We test the characteristics of storing and releasing thermal energy of two floor heating system and its influence on thermal comfort of the room.Indoor temperature fluctuation which use phase change energy storage floor heating system is reduced by 3.5 ℃ as well as the increase of indoor minimum temperature.Utilization of arranged PCM is relatively high.Combination of active solar house heating system which can be automatically adjusted as required and phase change energy storage floor achieve the effect of energy saving and improving room comfort.