Experimental study on Boiling Heat Transfer of R134a on Single Horizontal Doubly- enhanced Tubes
An experimental study was carried out for the characteristics of boiling heat transfer of R134a on single hori-zontal double-enhanced tubes in flood evaporation.In addition,the thermal resistances of the tested tubes were dia-grammatically obtained with the Wilson plot technique.The result shows tha...
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| Main Authors: | , , , , |
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| Format: | Article |
| Language: | zho |
| Published: |
Journal of Refrigeration Magazines Agency Co., Ltd.
2007-01-01
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| Series: | Zhileng xuebao |
| Online Access: | http://www.zhilengxuebao.com/thesisDetails#10.3969/j.issn.0253-4339.2007.01.006 |
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| Summary: | An experimental study was carried out for the characteristics of boiling heat transfer of R134a on single hori-zontal double-enhanced tubes in flood evaporation.In addition,the thermal resistances of the tested tubes were dia-grammatically obtained with the Wilson plot technique.The result shows that under the same conditions,the fin num-ber of per inch,the type of cavity,the number of cavity,the diameter of orifice,and the symmetrical cavity could all influence the heat transfer on the outside,and the improvement of inside structure could increase the overall heat transfer coefficient and change the inside fluid pressure drop. |
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| ISSN: | 0253-4339 |