Abstract
In light of the recent demand for saving energy, even dwelling houses in mild climates have been highly insulated. The effects of thermal insulation and shading on the air conditioning load in detached houses are studied on the basis of numerical simulation in the climate of Fukuoka falling under region IV of the Energy Conservation Standard. The heating load linearly decreases with the decrease in the heat loss coefficient. However, the cooling load does not change in the case of LDK in which generated indoor heat is considerably large. Peak cooling load appeared in the daytime of summer is suppressed by high grade insulation in envelope structure and sun shade glazing. The cooling load of a highly insulated house is decreased by a way of living adapted to mild climates, such as intermittent air conditioning, the introduction of outside air and the effective exhausting of generated indoor heat.