IMPACT OF THE TEMPERATURE AFFECT UPON THE RESIDENTIAL ENERGY CONSUMPTION FOR AIR-CONDITIONING

This paper presents a study of the impact of urban warming upon energy consumption for air-conditioning in the home, using a numerical simulation model. The results are as follows. 1) In cities other than Sapporo and Sendai, about 50 % of the total hours of occupancy were ventilation hours, and about 20 % to 40 % were cooling hours. As a result, the total energy consumption for cooling was comparatively large. 2) In these other cities, cooling hours increased in the summer as the outdoor temperature rose. In particular, when the temperature rose by 3°C, air-conditioning time increased nonlinearly in response. However, the increase in energy consumption for cooling was broadly linear. 3) In Sapporo, a temperature rise of 5°C was accompanied by 7 cooling days, whereas a 6°C rise brought about 14 cooling days