基于冰浆制冷的标准冷源及不确定度分析

TB61+1%TB657.2; 房间空调器制冷量的计量结果在不同焓差室间不一致的问题仍困扰着中国空调行业,是国际贸易中容易引发纠纷的计量学问题,亟待研究可对焓差实验室进行标定的标准冷源.在研究国内外房间空调器几种主流的制冷量计量方法以及标准冷源研究现状的基础上,结合对冰浆制冷物理过程的深入理解,提出基于冰浆制冷的标准冷源装置,包括冰浆制备系统和换热系统两大部分.对其进行实验研究及制冷量不确定度分析,验证该标准冷源装置是否具备标定焓差实验室的能力.实验结果表明:在焓差室室外侧为 0℃,室内侧为标准制冷工况,(m·)= 70 g/s下该标准冷源装置输出制冷量的相对不确定度可以达到 1.2%,约为空...

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Published in制冷学报 Vol. 45; no. 2; pp. 135 - 142
Main Authors 梁勇彪, 许戈耀, 谢宇航, 周龙, 钟武槟, 李斌诚, 巫江虹
Format Journal Article
LanguageChinese
Published 华南理工大学机械与汽车工程学院 广州 510640%广州群创电气设备技术有限公司 广州 510799%威凯检测技术有限公司 广州 510799 01.04.2024
Subjects
冰浆制冷
standard cold source
enthalpy difference chamber
relative uncertainty
校准
ice slurry refrigeration
air-enthalpy test method
相对不确定度
空气焓值法
焓差室
calibration
标准冷源
Online AccessGet full text
ISSN0253-4339
DOI10.3969/j.issn.0253-4339.2024.02.135

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Abstract TB61+1%TB657.2; 房间空调器制冷量的计量结果在不同焓差室间不一致的问题仍困扰着中国空调行业,是国际贸易中容易引发纠纷的计量学问题,亟待研究可对焓差实验室进行标定的标准冷源.在研究国内外房间空调器几种主流的制冷量计量方法以及标准冷源研究现状的基础上,结合对冰浆制冷物理过程的深入理解,提出基于冰浆制冷的标准冷源装置,包括冰浆制备系统和换热系统两大部分.对其进行实验研究及制冷量不确定度分析,验证该标准冷源装置是否具备标定焓差实验室的能力.实验结果表明:在焓差室室外侧为 0℃,室内侧为标准制冷工况,(m·)= 70 g/s下该标准冷源装置输出制冷量的相对不确定度可以达到 1.2%,约为空气焓值法的 1/3,可作为标准冷源对焓差室的制冷量测量结果进行标定,有助于提高制冷行业的国际竞争力.
AbstractList TB61+1%TB657.2; 房间空调器制冷量的计量结果在不同焓差室间不一致的问题仍困扰着中国空调行业,是国际贸易中容易引发纠纷的计量学问题,亟待研究可对焓差实验室进行标定的标准冷源.在研究国内外房间空调器几种主流的制冷量计量方法以及标准冷源研究现状的基础上,结合对冰浆制冷物理过程的深入理解,提出基于冰浆制冷的标准冷源装置,包括冰浆制备系统和换热系统两大部分.对其进行实验研究及制冷量不确定度分析,验证该标准冷源装置是否具备标定焓差实验室的能力.实验结果表明:在焓差室室外侧为 0℃,室内侧为标准制冷工况,(m·)= 70 g/s下该标准冷源装置输出制冷量的相对不确定度可以达到 1.2%,约为空气焓值法的 1/3,可作为标准冷源对焓差室的制冷量测量结果进行标定,有助于提高制冷行业的国际竞争力.
Abstract_FL The problem of inconsistency between the measurement results of the cooling capacity of room air conditioners between environmental chambers still plagues China′s air-conditioning industry and is a meteorological problem that easily leads to conflicts in international trade.A standard cold-source device that can calibrate laboratory measurement results of the enthalpy difference needs to be urgently studied.In this study,a standard cold-source device based on ice slurry refrigeration is proposed,including an ice slurry preparation system and a heat exchange system,based on a study of several mainstream cooling capacity measurement methods for room air conditioners and the research status of standard cold-sources at home and abroad,combined with an in-depth understanding of the physical process of ice slurry refrigeration.Experimental research and refrigeration capacity uncertainty analysis are conducted to verify whether the standard cold-source device could calibrate the enthalpy difference laboratory.The experimental results show that the relative uncertainty of the measured cooling capacity of the standard cold-source device in the enthalpy difference chamber can reach 1.2%when setting 0℃on the ambient side and setting the standard cooling condition on the room side with mass flow rate of 70 g/s,which is approximately 1/3 of the air enthalpy method and can be used as a standard cold source to calibrate the cooling capacity measurement results of the enthalpy difference chamber,which can help improve the international competitiveness of the refrigeration industry.
Author 钟武槟
梁勇彪
许戈耀
周龙
巫江虹
谢宇航
李斌诚
AuthorAffiliation 华南理工大学机械与汽车工程学院 广州 510640%广州群创电气设备技术有限公司 广州 510799%威凯检测技术有限公司 广州 510799
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Author_FL Li Bincheng
Zhou Long
Zhong Wubin
Xu Geyao
Xie Yuhang
Liang Yongbiao
Wu Jianghong
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  fullname: 巫江虹
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DocumentTitle_FL Standard Cold Source Based on Ice Slurry Refrigeration and Uncertainty Analysis
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Keywords 冰浆制冷
standard cold source
enthalpy difference chamber
relative uncertainty
校准
ice slurry refrigeration
air-enthalpy test method
相对不确定度
空气焓值法
焓差室
calibration
标准冷源
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PublicationTitle 制冷学报
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