INFLUENCE OF THERMAL RESISTANCE DUE TO FOULING OCCURRED IN RADIATORS'TUBEBANDLE OF THE AIR-COOLED CONDENSOR UPON THERMAL ECONOMIC EFFICINECY OF 600 MW DIRECT AIR-COOLED UNIT

JIANG Jian-guo1; YANG Xiang-liang2; SUN Rong-feng1; XU Min1; YANG Jing31.Energy Research Institute

doi:10.19666/j.rlfd.2008.12.003

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INFLUENCE OF THERMAL RESISTANCE DUE TO FOULING OCCURRED IN RADIATORS'TUBEBANDLE OF THE AIR-COOLED CONDENSOR UPON THERMAL ECONOMIC EFFICINECY OF 600 MW DIRECT AIR-COOLED UNIT

更新时间：2025-09-28

- INFLUENCE OF THERMAL RESISTANCE DUE TO FOULING OCCURRED IN RADIATORS'TUBEBANDLE OF THE AIR-COOLED CONDENSOR UPON THERMAL ECONOMIC EFFICINECY OF 600 MW DIRECT AIR-COOLED UNIT
- Thermal Power Generation Vol. 37, Issue 12, Pages: 9-12(2008)
- 作者机构：
  
  1. 山东省科学院能源研究所
  2. 国电山东分公司
  3. 山东电力工程咨询院
- 作者简介：
- 基金信息：
- DOI：10.19666/j.rlfd.2008.12.003
  CLC： TM621
- Published：2008
- 稿件说明：
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JIANG Jian-guo1, YANG Xiang-liang2, SUN Rong-feng1, et al. INFLUENCE OF THERMAL RESISTANCE DUE TO FOULING OCCURRED IN RADIATORS'TUBEBANDLE OF THE AIR-COOLED CONDENSOR UPON THERMAL ECONOMIC EFFICINECY OF 600 MW DIRECT AIR-COOLED UNIT[J]. Thermal power generation, 2008, 37(12): 9-12.
DOI：

JIANG Jian-guo1, YANG Xiang-liang2, SUN Rong-feng1, et al. INFLUENCE OF THERMAL RESISTANCE DUE TO FOULING OCCURRED IN RADIATORS'TUBEBANDLE OF THE AIR-COOLED CONDENSOR UPON THERMAL ECONOMIC EFFICINECY OF 600 MW DIRECT AIR-COOLED UNIT[J]. Thermal power generation, 2008, 37(12): 9-12. DOI： 10.19666/j.rlfd.2008.12.003.

摘要

直接空冷汽轮机组(直冷机组)运行一段时间后

其空冷凝汽器(空凝器)冷却管束内、外污垢热阻对机组热经济性有明显影响。以600 MW直冷机组为例

限定空凝器冷却管内、外污垢热阻均在0～0.001(m2·K)/W范围内变化

用η(效率)-NTU(传热单元数)法建立直冷机组排汽压力的冷却管内、外污垢热阻特性数学模型

并编程计算绘制出特性曲线

分析了直冷机组空凝器冷却管污垢热阻以及迎风面风速和环境温度对排汽压力的影响。

Abstract

After putting direct air-cooled unit into operation for some time

the influence of thermal resistance due to internal and external fouling of radiators'tubebandle in the air-cooled condenser upon the thermal economic efficiency of unit is remarkable.Taking 600 MW direct air-cooled unit as an example

and supposing the thermal resistance due to fouling in and out tubebandles of the radiators varying in a range of 0~0.001(m2·k)W

a mathematical model for calculating thermal resistance characteristics of fouling occurred in and out tubebandles used for the radiators of direct air-cooled unit has been established by using the η-NUT method

and corresponding characteristic curves being drawn out by programmed calculation

the influence of thermal resistance due to fouling occurred on tubebandles of air-cooled condenser

as well as wind velocity and ambient temperature on the windward side of air-cooled condensor upon the exhaust steam pressure being analysed.

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