Abstract

This paper presents a method of estimating the energy demand for air conditioning in cities, by using a numerical simulation model of urban climate. The grid data of outdoor air temperature distribution were obtained from the numerical calculation results for Fukuoka City, while a simple house model was used to estimate thedifference between the outdoor air and room temperatures for each grid. The hourly change of air conditioning load for a typical household was calculated. Then, the load maps were prepared usingthe digital national land information database, thenumber of households and the total floor space of households. These mapscan demonstrate the estimated amount and the spatial distribution of the energy demand for air conditioning.

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