INFLUENCE OF CROSSWIND UPON OPERATION OF DIRECT AIR-COOLED UNITS AND NUMERICAL SIMULATION THEREOF

TANG Zhengwei; XIONG Yangheng; HU LingDepartment of Power Engineering

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INFLUENCE OF CROSSWIND UPON OPERATION OF DIRECT AIR-COOLED UNITS AND NUMERICAL SIMULATION THEREOF

更新时间：2025-09-28

- INFLUENCE OF CROSSWIND UPON OPERATION OF DIRECT AIR-COOLED UNITS AND NUMERICAL SIMULATION THEREOF
- Thermal Power Generation Vol. 39, Issue 4, Pages: 12-16(2010)
- 作者机构：
  
  武汉大学动力工程系
- 作者简介：
- 基金信息：
- DOI：
  CLC： TM621
- Published：2010
- 稿件说明：
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TANG Zhengwei, XIONG Yangheng, HU LingDepartment of Power Engineering. INFLUENCE OF CROSSWIND UPON OPERATION OF DIRECT AIR-COOLED UNITS AND NUMERICAL SIMULATION THEREOF[J]. Thermal power generation, 2010, 39(4): 12-16.
DOI：

TANG Zhengwei, XIONG Yangheng, HU LingDepartment of Power Engineering. INFLUENCE OF CROSSWIND UPON OPERATION OF DIRECT AIR-COOLED UNITS AND NUMERICAL SIMULATION THEREOF[J]. Thermal power generation, 2010, 39(4): 12-16. DOI：

摘要

自然风特别是横向自然风会引起热风回流

造成空气凝汽器(空凝器)换热恶化

影响直接空冷(直冷)机组的安全、经济性运行。利用商业软件FLUENT

模拟不同速度的横向自然风对直冷平台流场的影响

研究分析了影响直接空冷系统安全经济性运行的主要因素

提出我国直冷机组抵御横向自然风(横向风)的措施和初步方案

如上延挡风墙高度

抽吸空凝器上方的出口热空气等

这些措施实施后

能够有效抑制和消除热风回流。研究结果为在实际工作中避免横向风危害提供了理论依据。

Abstract

The natural wind

especially the crosswind

can lead to back-flow of the hot wind to result in heat-exchange degradation of the condenser

having remarkable effect upon the safe and economic operation of direct air-cooled units.By using commercial software FLUENT

the influence of different speed crosswind upon the flow field of direct air-cooled platform has been simulated

the main factors affecting safe and economic operation of direct air-cooled system being studied and analysed

the measures and preliminary scheme for resisting natural crosswind to hurt direct air-cooled units in China

such as the height of wind-retaining wall

and extraction of hot air from outlet above the air-cooled condenser etc.

being put forward.After implementation of above-mentioned measures

the back flow of hot wind can be effectively restrained and eliminated

providing theoritical basis for avoiding the harmfullness of crosswind in practical operation.

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