SPACE HEATING NEEDS IN ASIA

摘要

Data on demand for space heating in Asia is limited mainly because great parts of Asia use mixed fuels for heating, cooking and lighting purposes, and it is impossible to distinguish between the end uses for all fuel products. Three major aspects indicate the heating needs for individual countries: the population, the total energy consumption, and the Gross Domestic Product. The controlling factor, however, is the climate, and maps of periodic mean surface isotherms can provide a valid image of the areal extend for heating needs, assuming a temperature limit for discomfort. The comfort threshold for space heating requirements is assumed to lie between an average outdoor temperature of 10°C and 15°C, depending on heating traditions and living standard of individual countries. The climate in southern and eastern Asia is controlled by the SouthWest and North-East Monsoons. With its vast size and varied relief the winter temperatures in southern and eastern Asia fall below -15° C in the northernmost and mountainous areas and exceed 40°C in the southern most and dry deserts areas. The staggering economic growth rate in Asia is increasing the energy needs tremendously. As the countries become richer the population is utilizing more energy, including energy for space heating, in their homes, offices and factories. There are various factors determining whether it is economically viable to implement geothermal district heating to meet local space heating demands. Among these are: population density, heating demand according to climatic circumstances availability of resource. In southern and eastern Asia there is a good correlation between the availability of resources and areas with high space heating demand.