根据多孔体内插物显著影响凝结液膜流动状态并导致液膜波动的特性,提出了用于大空隙率多孔体内插物强化蒸汽凝结换热计算的半经验准则关联式,用实验结果对关联式的正确性进行了验证,并通过数值模拟计算结果与该关联式结果的比较,证明了提出的半经验关联式可以应用到实验范围以外。
It is necessary for industrial utilization of heat transfer augmentationtechniques to obtain the heat transfer correlation used to calculate simplyand conveniently the heat transfer coefficients in design. A semi-empiricalcorrelation of condensation augmentation by porous body inserts has beenput forward in this paper. The calculated values of the semi-empiricalcorrelation are compared with experimental data. It is show that the maximumerror is 15%. The validity of the correlation method has been proved.
参考文献
| [1] | 俞颐秦;齐承英 等.花丝内插物强化竖直管内凝结换热的实验研究[J].工程热物理学报,1998,19(01):77-79. |
| [2] | 齐承英,俞颐秦,吕灿仁.多孔体内插物强化蒸汽凝结换热理论模型及模拟计算[C].中国工程热物理学会传热传质学学术会议论文集,1998:Ⅴ-53～Ⅴ-59. |
| [3] | F. Handbook of Heat Transfer Application[M].New York: Published by McGraw-Hill Book Company,1985 |
| [4] | A F et al.Heat Transfer Across Turbulent Falling Films[J].International Journal of Heat and Mass Transfer,1983,16(04) |
| [5] | K Heat.Transfer in Condensation and Boiling[M].Berlin:Springer-Verlay,1992 |
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%