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介绍了我国标准和ASHRAE Standard 90.1-2010中的气候分区,分析了中美两国标准中给出的我国一些城市的夏季空调室外计算湿球温度的差异。选择我国部分典型城市,分别采用中美两国标准中给出的夏季室外计算参数计算了新风冷负荷,发现在中、低湿球温度城市二者的计算结果差别很大。相对于美国ASHRAE给出的同一城市的夏季空调室外计算湿球温度,我国标准给出的设计参数值普遍偏大,尤其是在干热气候区偏差更大,这必定导致在这类地区设计的空调系统初投资增大。
This paper introduced the standard of our country and the climate division in ASHRAE Standard 90.1-2010, and analyzed the differences of the wet bulb temperature in outdoor air-conditioning in summer in some cities of our country given in the standards of China and the United States. Select some typical cities in our country, and calculate the fresh air cooling load by using the summer outdoor calculation parameters given in the standards of China and the United States respectively. It is found that the calculated results of the two are quite different in cities with medium and low wet bulb temperatures. Relative to the same city in the United States ASHRAE given the summer air-conditioned outdoor wet bulb temperature calculation, our standard design parameters are generally given a large value, especially in the hot and dry climatic deviations greater, which will inevitably lead to design in such areas Air conditioning system increased initial investment.