STUDY ON THE HEAT LOSS OF THE DETACHED HOUSE WHEN HEATED BY BOTH FLOOR HEATING AND AIR-CONDITIONING

This study carries out a field measurement survey and CFD calculation about the heat loss of a house when heated by the floor heating and the air conditioning were analyzed in detail. The energy consumption in the actual condition of both the floor heating and the air-conditioning is clarified. The results of the measurement are as follows: (1) In this investigation, the heat load of the floor heating is 421[MJ/day], the heat load of the air-conditioning is 405[MJ/day]. (2) CFD calculation results that SET* is about 22[°C], heat loss of a floor heating is more than air-conditioning. (3) Wall temperature of the floor heating becomes relatively high, the heat losses from a wall become large. (4) Room air temperature of floor heating is lower than air-conditioning, the heat load of ventilation is smaller than floor heating.