An experimental system for thermal performance test of large-scale air-cooling towers

XI Xinming; GUO Yonghong; DU Xiaoze; YANG Lijun; YANG Yongping

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An experimental system for thermal performance test of large-scale air-cooling towers

Thermal Power Generation Vol. 43, Issue 11, Pages: 79-82(2014)

更新时间：2025-09-28

- An experimental system for thermal performance test of large-scale air-cooling towers
- 作者机构：
  
  华北电力大学电站设备状态监测与控制教育部重点实验室
- 作者简介：
- 基金信息：
- DOI：
  CLC： TK172
- Published：2014
- 稿件说明：
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XI Xinming, GUO Yonghong, DU Xiaoze, et al. An experimental system for thermal performance test of large-scale air-cooling towers[J]. Thermal Power Generation, 2014, 43(11): 79-82.
DOI：

XI Xinming, GUO Yonghong, DU Xiaoze, et al. An experimental system for thermal performance test of large-scale air-cooling towers[J]. Thermal Power Generation, 2014, 43(11): 79-82. DOI：

摘要

以某600 MW间接空冷机组的空冷塔为原型

按1∶30的比例

根据相似原理设计了1套自然环境条件下大型间接空冷塔的实验系统。该系统由模型空冷塔、空冷模型散热器、散热热负荷控制系统及数据采集系统等组成。实验期间可根据数值大小及实验目的利用控制系统调整热负荷。对实验数据计算及分析

表明:该空冷塔实验系统的换热系数测量误差小于20%;利用该实验系统

可获得不同环境气象条件下

空冷塔内部空气流场特性

以及散热负荷的空间分布规律;可进行间接空冷系统热空气回流、冬季防冻及烟塔合一条件下塔内气体流动传热机理的研究。

Abstract

On the basis of a 600 MW indirect air cooling unit

an experimental system for large-scale air-cooing tower was designed by means of the similarity principles

with a proportion of 1to 30.This system consists of modeling air cooling tower

air cooling modeling radiator

heat load power control system and data collection system.During the experiment

the heat load can be regulated by the control system

according to the parameters' value and experimental purpose.The calculation shows the measurement error of heat transfer coefficient of this experimental system is less than 20%.Through this system

the flow and heat transfer characteristics at inside and outside of the dry-cooling tower under various environmental conditions can be measured.Moreover

the correlations of flow and heat transfer of air-cooled heat exchanger and the off-design performance of the indirect dry cooling system can be obtained.The hot plume recirculation flows

anti-freezing in winter and the thermo-hydraulic performances for stack and tower integration design can be investigated using this experimental system.The design principle

basic parameters and measuring errors were analyzed.

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