NUMERICAL INVESTIGATION ON AIR FLOW AND HEAT TRANSFER PERFORMANCE OUTSIDE TRIPLE ROW TUBE USED IN DIRECT AIR COOLING CONDENSER

SHI Lei1; SHI Cheng2; LIU Hai-feng3; HUANG Yue31.School of Civil Engineering

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NUMERICAL INVESTIGATION ON AIR FLOW AND HEAT TRANSFER PERFORMANCE OUTSIDE TRIPLE ROW TUBE USED IN DIRECT AIR COOLING CONDENSER

Thermal Power Generation Vol. 38, Issue 5, Pages: 14-17(2009)

更新时间：2025-09-28

- NUMERICAL INVESTIGATION ON AIR FLOW AND HEAT TRANSFER PERFORMANCE OUTSIDE TRIPLE ROW TUBE USED IN DIRECT AIR COOLING CONDENSER
- 作者机构：
  
  1. 北京交通大学土木建筑工程学院
  2. 中国电力工程顾问集团公司
  3. 中国华电工程(集团)有限公司
- 作者简介：
- 基金信息：
- DOI：
  CLC： TK264.11
- Published：2009
- 稿件说明：
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SHI Lei1, SHI Cheng2, LIU Hai-feng3, et al. NUMERICAL INVESTIGATION ON AIR FLOW AND HEAT TRANSFER PERFORMANCE OUTSIDE TRIPLE ROW TUBE USED IN DIRECT AIR COOLING CONDENSER[J]. Thermal Power Generation, 2009, 38(5): 14-17.
DOI：

SHI Lei1, SHI Cheng2, LIU Hai-feng3, et al. NUMERICAL INVESTIGATION ON AIR FLOW AND HEAT TRANSFER PERFORMANCE OUTSIDE TRIPLE ROW TUBE USED IN DIRECT AIR COOLING CONDENSER[J]. Thermal Power Generation, 2009, 38(5): 14-17. DOI：

摘要

椭圆管外绕椭圆翅片的三排管是直接空冷凝汽器(空凝器)的一种基本换热元件

三排管外空气侧的流动和传热

对于空凝器的优化设计和安全运行具有重要的意义。在不同迎面风速下

对三排管外空气侧进行三维数值模拟

并对速度场、温度场进行分析和研究;拟合出三排管阻力和平均传热系数随迎面风速变化的计算公式。

Abstract

The helically wound galvanized steel finned elliptical triple row tube is a basic heat exchanging element for direct air cooling condensers.Research on flow and heat transfer performance outside the triple row tube is of great important for optimal design and safe operation of air cooling condensers.Under different frontal wind velocities

a three dimensional airside of the triple row tube is simulated

and the flow field and temperature field are analyzed and studied.Data regressions show the equation of pressure drop and mean heat transfer coefficient with a frontal wind velocity.It offers great help to optimal design of the direct air cooling system.

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