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如何合理确定调查样本的数量是住宅空调能耗调查工作中亟待研究解决的一个重要基础性问题。依据北京市和武汉市大量住户的空调能耗调查数据,采用随机抽样试验的方法,对调查样本数量与调查准确度的关系进行了研究。结果表明,对于大量住户的空调能耗调查,为了达到较高的调查准确度,北方寒冷地区随机抽样调查的样本数不宜少于140户,南方炎热地区随机抽样调查的样本数不宜少于100户。这些研究结果可供住宅空调能耗调查和其他类似调查工作参考。
How to determine the number of survey samples reasonably is an important basic problem to be solved urgently in the investigation of energy consumption of residential air conditioners. Based on the survey data of energy consumption of air conditioners in a large number of households in Beijing and Wuhan, a random sampling test was used to study the relationship between the number of survey samples and the survey accuracy. The results show that for a large number of households in the air conditioning energy consumption survey, in order to achieve a higher accuracy of the survey, the northern cold areas random sample survey should not be less than 140 samples, hot samples in the southern area of random sample of not less than 100 households . These findings can be used for residential air conditioning energy consumption surveys and other similar surveys for reference.