CIESC Journal

• 化工学报 • 上一篇    下一篇

多头与单头螺旋槽管传热准数方程关联法

邓先和,谭盈科,邓颂九   

  1. 华南理工大学化工研究所,华南理工大学化工研究所,华南理工大学化工研究所 广州 ,广州 ,广州
  • 出版日期:1989-02-25 发布日期:1989-02-25

Heat Transfer Correlation for Turbulent Single-Phase Flow in Single-and Multiple-start Spiral-Fluted Tubes

Deng Xianhe, Tan Yingke and Deng Songjiu (Chemical Engineering Research Institute of South China University of Technology, Guangzhou)   

  • Online:1989-02-25 Published:1989-02-25

摘要: 本文提出一种多头与单头螺旋槽管管内单相流体对流传热准数方程的关联法,对普兰特数Pr从0.7到35的三种介质——空气、水及甘油与水的混合物进行了管内传热准数方程的关联,其关联形式较简单,关联效果良好,适用于工程计算,也有助于传热理沦的研究.

Abstract: A method in proposed for correlating heat transfer coefficient in spiral-fluted tubes upon analysis of the distribution of heat transfer resistance. A correlation for turbulent single-phase flow is thus obtained, Valid for both single-and multiple-start spiral-fluted tubles, are a wide range of Prandtl number (Pr = 0.7 to 35).