Evaporation heat transfer performance of R410A inside 3-D double-enhanced tubes

CHEN Jingxiang; LI Wei; ZHU Hua; JIN Chunhua; DU Jincai; ZHANG Zhengjiang; LIU Li

doi:10.11949/j.issn.0438-1157.20181086

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Evaporation heat transfer performance of R410A inside 3-D double-enhanced tubes

更新时间：2025-12-10

- Evaporation heat transfer performance of R410A inside 3-D double-enhanced tubes
- CIESC Journal Issue S2, Pages: 76-81(2018)
- 作者机构：
  
  1. 浙江大学能源工程学院,浙江,杭州,310027
  2. 无锡佳龙换热器股份有限公司,江苏,无锡,214092
  3. 青岛科技大学机电工程学院,山东,青岛,266061
- 作者简介：
- 基金信息：
- DOI：10.11949/j.issn.0438-1157.20181086
  CLC： K121
- Online First：31 December 2018，
  
  Published：31 December 2018
- 稿件说明：
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CHEN Jingxiang, LI Wei, ZHU Hua, et al. Evaporation heat transfer performance of R410A inside 3-D double-enhanced tubes[J]. CIESC Journal, 2018, (S2): 76-81.
DOI：

CHEN Jingxiang, LI Wei, ZHU Hua, et al. Evaporation heat transfer performance of R410A inside 3-D double-enhanced tubes[J]. CIESC Journal, 2018, (S2): 76-81. DOI： 10.11949/j.issn.0438-1157.20181086.

摘要

研究R410A制冷剂在新研发的内径为11.07 mm的三维双侧强化管内的蒸发换热特性，并与相同直径的光管内蒸发换热特性进行了对比。实验段测试管长2 m，制冷剂质量流速范围为70～150 kg/（m2·s），饱和温度维持在10 ℃，干度变化范围为0.1～0.9。分析了低质量流速低干度和低质量流速高干度区域内光管和强化管内传热特性。光管实验结果同4个蒸发关联式进行比较，结果表明关联式的预估值与95.48%的光管实验数据吻合误差在±20%以内。

Abstract

An experimental investigation on R410A evaporation characteristics inside newly developed 3-D enhanced tubes is performed

and the results are compared with a smooth tube with inner diameter of 11.07 mm. The test section is a 2 m long tube-in-tube heat exchanger and the mass flux ranges from 70 to 150 kg/(m2·s)

vapor quality ranges from 0.1 to 0.9 when saturation temperature is maintained at 10℃.The heat transfer characteristics in low vapor quality region and high vapor quality region are discussed within the tested mass flux range. Four evaporation correlations are introduced to validate the test results of the smooth tube

and the results show that the predicted values have a good consistence with the experimental results.

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