本文对R134a在板式换热器内的凝结换热特性进行了实验研究,通过测量换热器中冷却水及板壁温度获得了局部凝结换热系数随蒸气干度、质量流量及热流密度的变化关系.实验结果表明,凝结换热系数随着蒸气干度增加而增加.文章还将实验结果与部分文献数据进行了比较与分析.本文的研究为换热准则关系式的发展提供了实验数据.
参考文献
[1] | 马虎根,卢玫,蔡祖恢,吴志光.R22与R32/R134a水平微翅管内流动沸腾换热特性研究[C].中国工程热物理学会第十届年会论文集(传热传质学),2001:280-284. |
[2] | Tovazhnyanski L L;Kapustenko P A .Intensification of Heat and Mass Transfer in Channels of Plate Condensers[J].Chemical Engineering Communications,1984,31:351-366. |
[3] | YI-YIE YAN;HSIANG-CHAO LIO;TSING-FA LIN .CONDENSATION HEAT TRANSFER AND PRESSURE DROP OF REFRIGERANT R-134A IN A PLATE HEAT EXCHANGER[J].International Journal of Heat and Mass Transfer,1999(6):993-1006. |
[4] | Martin H A .Theoretical Approach to Predict the Performance of Chevron-Type Plate Heat Exchangers[J].Chemical Engineering and Processing,1996,35:301-310. |
[5] | Arman B;Rabas T J.Condensation Analysis for Plate Frame Heat Exchangers[A].ASME Heat Transfer Division,1995:97-104. |
上一张
下一张
上一张
下一张
计量
- 下载量()
- 访问量()
文章评分
- 您的评分:
-
10%
-
20%
-
30%
-
40%
-
50%