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冬夏两季由于室内与外界环境温差大,需要消耗大量的电能来维持室内温度与人体适宜。据报导,一个中等宾馆年耗电量一千万度左右,而长城饭店年耗电量为解放初期北京市总年耗电量之和。宾馆及需要室内恒温的建筑物之所以耗电量大,除部分用于照明、电视接收等其他一般性生活用电外,主要是冬夏两季维持室内恒温消耗了大量电能。虽然人们在建筑方面对室内保温作了许多努力,但在怎样改善做窗户的玻璃的性能来减少室内外交换热
In winter and summer, due to the large temperature difference between the interior and the outside environment, a large amount of electric energy is required to maintain the indoor temperature and the human body. According to reports, a medium-sized hotel consumes about 10 million kilowatt hours of electricity each year, and the annual electricity consumption of the Great Wall Hotel is the sum of electricity consumed by Beijing in the early years of the liberation. Hotels and the need for indoor constant temperature buildings because of the large power consumption, in addition to some used for lighting, television reception and other general life electricity, mainly in winter and summer to maintain the indoor temperature consumes a lot of electricity. Although people have made many efforts in the construction of indoor insulation, but how to improve the performance of the window glass to reduce the indoor diplomatic heat transfer