Effect of environmental air on operation performance of the air cooling fan cluster:numerical study

WANG Xing; YAN Hong; SUN Dawei; DONG Kangtian

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Effect of environmental air on operation performance of the air cooling fan cluster:numerical study

更新时间：2025-09-28

- Effect of environmental air on operation performance of the air cooling fan cluster:numerical study
- Thermal Power Generation Vol. 43, Issue 6, Pages: 112-118(2014)
- 作者机构：
  
  西安热工研究院有限公司
- 作者简介：
- 基金信息：
- DOI：
  CLC： TK172
- Published：2014
- 稿件说明：
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WANG Xing, YAN Hong, SUN Dawei, et al. Effect of environmental air on operation performance of the air cooling fan cluster:numerical study[J]. Thermal power generation, 2014, 43(6): 112-118.
DOI：

WANG Xing, YAN Hong, SUN Dawei, et al. Effect of environmental air on operation performance of the air cooling fan cluster:numerical study[J]. Thermal power generation, 2014, 43(6): 112-118. DOI：

摘要

利用数值模拟的方法对空冷风机群效应以及环境风速、风向对空冷风机群运行性能的影响规律和物理本质进行了分析研究。结果表明:空冷风机群入口负压的变化是造成不同环境下各位置空冷风机运行性能偏差的直接原因。在近似无风环境下

空冷风机群受群效应影响比较严重

呈现周边风量小中间风量大的运行特点;随环境风速的增加

各位置空冷风机风量均不断下降

并且环境风的影响由背风面到迎风面逐渐增强;主导风向下

空冷风机的运行性能受环境风的影响最小

经锅炉侧的逆向来风对其影响最大。

Abstract

The influence of the air cooling fan cluster effect

environmental air speed and direction on operation performance of the air cooling fan cluster was numerically investigated.The results show that

variation of the negative pressure at entrance of the air cooling fan cluster was the direct reason for operation performance deviation of the air cooling fan located at different places under different environmental conditions.In the environment with nearly no air flow

the air cooling fan cluster was affected seriously by the group effect

and exhibited characteristics of low surrounding air flow and large intermediate air flow.As the environmental air speed increased

the air flow from air cooling fans located at different places decreased continuously

and the effect of the environmental air enhanced from the leeward side to the windward side.In the dominant air direction

the operation performance of the air cooling fan was affect by the environmental air most slightly

while by the reverse wind from boiler side most seriously.

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