中南大学学报（自然科学版）2012，Vol.43Issue(11)：4590-4594,5.
某地源热泵机组能效测试不确定度分析
Uncertainty analysis for COP measurement of a GSHP unit
摘要
Abstract
To ensure the validity of COP testing of a GSHP system, a method was proposed to measure the degree of uncertainty to deal with statics in the survey when applying for the demonstrative project of renewable energy. Firstly, the collected data were tested for the validity. The data of the indirect measurement were analyzed with the theory of uncertainty on the premise of no distinct error exiting in the process. Meanwhile, it was also discussed that whether it was necessary to improve the accuracy of the instruments to mend the result just by means of analyzing the relative uncertainty of various factors. The results show that the computed COP is equal to 4.87. but combined uncertainty is 0.19 and expanded uncertainty is 0.36 at the level of 95% of confidence probability. Two conclusions can be drawn: One is that it is very important to analyze the collected data in a scientific method; the other is that there is great potential to improve the accuracy of mercurial thermometer and power meter at extreme situation, while there is no need for ultrasonic flowmeter.关键词
机组能效比/间接测量/合成不确定度/扩展不确定度Key words
COP/ indirect measurement/ combined uncertainty/ expanded uncertainty分类
建筑与水利引用本文复制引用
刘猛,张青山..某地源热泵机组能效测试不确定度分析[J].中南大学学报（自然科学版）,2012,43(11):4590-4594,5.基金项目
国家自然科学基金青年基金资助项目(51108473) （51108473）
