Effect of Pre-cooler on Supply and Return Air of Air Curtain in Display Cabinet
This study focused on a vertical open-type display cabinet with double air curtain, and investigated the effect of pre-cooler on supply and return air of air curtain in display cabinet. The experimental investigation was undertaken in the test room with temperature of 25℃ and relative humidity of 60...
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| Main Authors: | , , |
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| Format: | Article |
| Language: | zho |
| Published: |
Journal of Refrigeration Magazines Agency Co., Ltd.
2014-01-01
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| Series: | Zhileng xuebao |
| Subjects: | |
| Online Access: | http://www.zhilengxuebao.com/thesisDetails#10.3969/j.issn.0253-4339.2014.02.111 |
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| Summary: | This study focused on a vertical open-type display cabinet with double air curtain, and investigated the effect of pre-cooler on supply and return air of air curtain in display cabinet. The experimental investigation was undertaken in the test room with temperature of 25℃ and relative humidity of 60% to characterize the effect of pre-cooler on supply and return air of air curtain in display cabinet. The results showed that: the temperature of the supply air was not obviously elevated, and the return air temperature was reduced by 5℃; the inner supply air and the return air relative humidity of air curtain changed little, the outer supply air relative humidity dropped from 69% to 60%; and the enthalpy of outer supply air kept a fixed value, and the enthalpy of the return air decreased by 21.4%. The decreases of return air temperature and enthalpy could lead to significant decrease in the display cabinet load. |
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| ISSN: | 0253-4339 |