CIESC Journal

• 化工学报 • 上一篇    下一篇

TEMA-F型换热器壳侧单相压降的预测模型及其测量

杨小琼,王启杰,王崧   

  1. 西安交通大学动力系!西安710049,西安交通大学动力系!西安710049,西安交通大学动力系!西安710049
  • 出版日期:1996-06-25 发布日期:1996-06-25

PREDICTION MODEL AND MEASUREMENT OF SINGLE PHASE PRESSURE DROP ON SHELL-SIDE OF TEMA-F HEAT EXCHANGER

Yang Xiaoqiong;Wang Qijie;Wang Song(Department of Power Machinery Engineering,Xian Jiaotong University,Xian 710049)   

  • Online:1996-06-25 Published:1996-06-25

摘要: 对预测TEMA-E型换热器壳侧单相压降的“流路分析法”进行分析的基础上提出:当Re_(Tc)足够大时,各流路的阻力系数主要取决于各流动通道的横截面积及其质量流率,而通道截面的几何形状不会产生显著影响.因此,TEMA-F型换热器壳侧单相压降的计算可以在适当修改几何参数的条件下,用单壳程单弓板的流路分析法进行预测.为了验证预测模型,进行了试验研究.结果表明,理论预测值与试验值吻合良好.

Abstract: Based on an analysis with Divided-flow Method,this paper shows that stream resistance coefficients mainly depend on the cross-sectional area and mass flow rate of different flow paths when crossflow Reynolds number Re(Tc)is high enough.The effects of geometrical shape of cross-sectional area can be neglected.Therefore pressure drop on the shell-side of a TEMA-F heat exchanger can be Predicted by using Divided-Flow Method for TEME-E heat exchanger.Experimental study was carried out.The experimental values of pressure drop and predicted values appear to be in good agreement.

中图分类号: