ENVIRONMENTAL CHARACTERISTICS OF THE AIR-CONDITIONING SYSTEM WITH FLOOR THERMAL STORAGE

为了平衡电力需求和提供舒适的热环境，本研究的目的是研究应用于神户办公楼和福冈测试大楼的地板蓄热系统的环境特性。通过夏季对办公楼的现场测量和冬季对测试楼的实验，该系统通过利用夜间折扣率降低运行成本，同时地板和天花板表面的辐射有助于保持居住者的空间热舒适性。此外，还对该系统进行了仿真，阐明了该系统的热特性和能耗。地板蓄热空调系统的显热提取率比标准空调系统大5%，但地板蓄热空调系统的电功率比标准空调系统小30%。

The objective of this study is to examine the environmental characteristics of the floor thermal storage system which was applied to an office building in Kobe and an test building in Fukuoka in order to balance the electric power demand and provide a comfortable thermal environment.According to the field measurments of the office building in summer and the experiments with the test building in winter, this system reduces running cost by utilization of the nighttime discount power rate and the radiation from the floor and ceiling surface contributes to maintaining space thermal comfort for the occupants.In addition, Simulations of this system were carried out to clarify the thermal characteristics and the energy consumption. The sensible heat extraction rate of the air-conditioning system with floor thermal storage is larger than the standard air-conditioning system by 5% but the electric power rate of the floor thermal storage airconditioning system is smaller than that of the standard system to the extent of 30%.