NUMERICAL SIMULATION OF ASH DEPOSITION ON DIRECT AIR-COOLING CONDENSER

GUO Minchen1; CHEN Wenfei1; REN Defei2; MA Ying1; MEI Yong1 1.School of Energy

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NUMERICAL SIMULATION OF ASH DEPOSITION ON DIRECT AIR-COOLING CONDENSER

Thermal Power Generation Vol. 41, Issue 10, Pages: 41-43(2012)

更新时间：2025-09-28

- NUMERICAL SIMULATION OF ASH DEPOSITION ON DIRECT AIR-COOLING CONDENSER
- 作者机构：
  
  1. 华北电力大学能源动力与机械工程学院
  2. 哈尔滨电气国际工程公司
- 作者简介：
- 基金信息：
- DOI：
  CLC： TK264.11
- Published：2012
- 稿件说明：
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GUO Minchen1, CHEN Wenfei1, REN Defei2, et al. NUMERICAL SIMULATION OF ASH DEPOSITION ON DIRECT AIR-COOLING CONDENSER[J]. Thermal Power Generation, 2012, 41(10): 41-43.
DOI：

GUO Minchen1, CHEN Wenfei1, REN Defei2, et al. NUMERICAL SIMULATION OF ASH DEPOSITION ON DIRECT AIR-COOLING CONDENSER[J]. Thermal Power Generation, 2012, 41(10): 41-43. DOI：

摘要

以配有空冷凝汽器空气温度监测系统的600MW直接空冷机组的2个空冷凝汽器单元为研究对象

建立其三维数值模型

对空冷凝汽器局部积灰后及调节积灰单元风机风速后其出口空气温度和速度分布进行模拟。结果表明

空冷凝汽器局部积灰单元的翅片管出口空气温度及速度较清洁区域略低;利用空冷凝汽器出口空气温度监测系统对温度值偏高单元的风机进行局部调节

可有效改善空冷凝汽器积灰部分的换热状况。

Abstract

Two direct air-cooled condenser(ACC) units with air temperature monitoring system for a 600 MW level unit were taken as objects to build the 3 dimensional numerical models and simulate the distribution of air temperature and velocity at outlet of the condensers

after ash deposition and speed regulation of fans for the deposited unit.Results show that

the air temperature and velocity at outlet of the finned tube for ACC in ash deposited area are lower than that in clean zones.Locally regulating fans in high temperature area by the air temperature monitoring system at outlet of the ACC

can efficiently improve the heat exchange behavior of ash deposited areas.

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