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双回路逆流干式蒸发器设计及实验验证
Alternative TitleDesign and experimental verification for double-loop countercurrent dry-expansion evaporators
尹应德1,2,3; 孙晋飞1,2,3; 朱冬生1,2,3; 刘峰4; 王洪4
2017-07
Source Publication暖通空调
ISSN1002-8501
Volume47Issue:7Pages:142-146
Abstract基于非对称空间传热理念,设计了一种新型双回路逆流干式蒸发器,并将其安装在空气源热泵机组上进行实验测试。理论计算和测试结果表明:制冷工况下,干式蒸发器总表面传热系数的理论计算值为1709.4w/(m^2·K),实测值为1938.1w/(m^2·K),后者比前者大11.8%;制热工况下,干式蒸发器总表面传热系数的理论计算值为1834.9w/(m^2·K),实测值为2226.4w/(m^2·K),后者比前者大17.5%。对误差原因进行了分析,结果显示:实际测试时壳程流速增大;蒸发器内换热管的污垢热阻很小。
Other AbstractBased on the asymmetric space heat transfer concept, designs a novel double-loop counter- currrent dry-expansion evaporator equipment, and installs it to an air-source heat pump unit and performs the experiment. Theoretical calculation and test results show that the calculated value of the overall surface coefficient of heat transfer is 1 709.4 W/(m^2· K), and the measured value is 1 938.1 W/(m^2 · K) for dry-expansion evaporator under cooling condition, the latter is 11.8% higher than the former; and that the corresponding values under heating condition are I 834.9 W/(m^2 ·K)and 2 226.4 W/(m^2 · K)respectively, the latter is 17.5 % higher than the former. Analyses the error cause and concludes that the flow velocity in shell-side of the measured evaporator is increased, and the fouling resistance of heat exchanger tube in the measured evaporator is nearly zero.
Keyword双回路 逆流 自支撑 干式蒸发器 总表面传热系数 double-loop, countercurrent, self-supporting, dry-expansion evaporator, overall surfacecoefficient of heat transfer
Language中文
Document Type期刊论文
Identifierhttp://ir.giec.ac.cn/handle/344007/16659
Collection中国科学院广州能源研究所
Affiliation1.中国科学院广州能源研究所;
2.中国科学院可再生能源重点实验室;
3.广东省新能源和可再生能源研究开发和应用重点实验室;
4.TCL空调器(中山)有限公司
First Author AffilicationGuangZhou Institute of Energy Conversion,Chinese Academy of Sciences
Recommended Citation
GB/T 7714
尹应德,孙晋飞,朱冬生,等. 双回路逆流干式蒸发器设计及实验验证[J]. 暖通空调,2017,47(7):142-146.
APA 尹应德,孙晋飞,朱冬生,刘峰,&王洪.(2017).双回路逆流干式蒸发器设计及实验验证.暖通空调,47(7),142-146.
MLA 尹应德,et al."双回路逆流干式蒸发器设计及实验验证".暖通空调 47.7(2017):142-146.
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