杭晨哲,马国远,张海云,徐定华,许树学.采用水焓值法的制冷量源及其不确定度分析[J].仪器仪表学报,2017,38(4):919-926
采用水焓值法的制冷量源及其不确定度分析
Cooling capacity source and its uncertainty analysis with water enthalpy method
  
DOI:
中文关键词:  计量学  制冷量源  水焓值法  平衡环境型量热计  不确定度
英文关键词:metrology  cooling capacity source  water enthalpy method  balanced ambient room type calorimeter  uncertainty
基金项目:国家自然科学基金(51376010)项目资助
作者单位
杭晨哲 1.北京工业大学环境与能源工程学院北京100124; 2.中国计量科学研究院 新能源环境计量研究所北京100029 
马国远 北京工业大学环境与能源工程学院北京100124 
张海云 中国计量科学研究院 新能源环境计量研究所北京100029 
徐定华 中国计量科学研究院 新能源环境计量研究所北京100029 
许树学 北京工业大学环境与能源工程学院北京100124 
AuthorInstitution
Hang Chenzhe 1. College of Environmental and Energy Engineering, Beijing University of Technology, Beijing 100124, China; 2. Division of Energy and Environmental Measurement, National Institute of Metrology, Beijing 100029, China 
Ma Guoyuan College of Environmental and Energy Engineering, Beijing University of Technology, Beijing 100124, China 
Zhang Haiyun Division of Energy and Environmental Measurement, National Institute of Metrology, Beijing 100029, China 
Xu Dinghua Division of Energy and Environmental Measurement, National Institute of Metrology, Beijing 100029, China 
Xu Shuxue College of Environmental and Energy Engineering, Beijing University of Technology, Beijing 100124, China 
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中文摘要:
      制冷量量值统一对促进空调器行业节能减排有基础性作用,采用水焓值法的制冷量源能够应用于制冷量的量值传递,提供数值可测、可控的制冷量量值。首先,提出了水焓值法制冷量源的装置原理,减少了输出制冷量测量参数;然后,设计并研制了制冷量源实验装置,并在平衡环境型量热计中进行了实验研究,实验结果显示,量热计测得值与冷量源输出制冷量最大相对偏差不超过±0.7%;最后,详细给出制冷量源的不确定度评定过程和结果:制冷量源重复性为11.4 W,源输出由1 660.8增大至5 810.4 W时,合成标准不确定度由12.3增大至18.2 W,对应相对扩展不确定度由1.5%(k=2)减小至0.6%(k=2)。采用水焓值法的制冷量源第1次从计量学角度实现了制冷量量值的溯源,输出量值可溯源至温度、压力、流量和功率单位,可作为校准制冷量测量装置的标准源使用。
英文摘要:
      Unifying the cooling capacity measurement result has a fundamental effect on energy conservation and emission reduction in air conditioner industry. The water enthalpy method cooling capacity source could be applied in the calibration of cooling capacity measuring apparatus; it could supply a cooling capacity that is measurable and controllable. In this research, the principle of the water enthalpy method, which reduces the number of measuring parameters, was illustrated first. Then, the physical structure of the source was designed and developed, and the source was experimentally investigated with a balanced ambient room type calorimeter. The experiment results show that the maximum relative difference of cooling capacity between the source and the calorimeter is less than ±0.7%. Finally, the uncertainty evaluation process and result of the cooling capacity output of the source are given in detail. The evaluation results show that the repeatability of the source is 11.4 W; as the cooling capacity increases from 1 660.8 to 5 810.4 W, the combined standard uncertainty increases form 12.3 to 18.2 W, and the relative expanded uncertainty decreases from 1.5%(k=2) to 0.6%(k=2). With the water enthalpy method the traceability of cooling capacity source is achieved for the first time from the perspective of metrology, the cooling capacity could be traced to temperature, pressure, flow rate and electric power, and the source apparatus could be used as standard cooling capacity source in calibration.
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