PERFORMANCE EVALUATION ON THERMAL STORAGE COOLING SYSTEM FOR EXTERNAL INSULATED DETACHED HOUSES BUILT FROM REINFORCED CONCRETE : Possibility and problems of a floor cooling

摘要

The aim of this study is to verify the usefulness of thermal storage cooling system for external insulated detached houses built from reinforced concrete. After actual survey of model houses built in Saitama prefecture in the hottest summer season, COP of heat pump (primary side) including that of circulation pump (secondary side) was concretely estimated, and also the performance of this system, such as a floor cooling system by using water as the thermal medium, was evaluated. At once, the evaluation of thermal comfort and humidity management when this system was introduced was practiced, and also the possibility and problems of a floor cooling for highly insulated buildings in the future were revealed.