| 环境风对直接空冷岛换热的影响 |
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| 引用本文： | 丁振宇,陈巍,田永兴,李学智.环境风对直接空冷岛换热的影响[J].汽轮机技术,2011,53(3). |
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| 作者姓名： | 丁振宇 陈巍 田永兴 李学智 |
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| 作者单位： | 宁夏电力公司宁夏电力科学研究院,银川,750002 |
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| 摘 要： | 以国内蒙达电厂600MW直接空冷机组为例,针对当前直接空冷机组运行中的突出问题——环境风的不利影响,利用CFD数值模拟软件Fluent,对空冷岛外部流场进行数值模拟。发现炉后来风、热风回流、倒灌是造成空冷岛换热效率下降的主要因素,分析了炉后来风、热风回流、倒灌等对空冷岛外部流场和换热性能的影响机理,并得到环境风速与热风回流和倒灌的关系。
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| 关 键 词： | 环境风 fluent数值模拟 热风回流 倒灌 |
The Effects of Environment Wind on Heat Transfer of Direct Air Cooled Island |
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| DING Zhen-yu,CHEN Wei,TIAN Yong-xing,LI Xue-zhi.The Effects of Environment Wind on Heat Transfer of Direct Air Cooled Island[J].Turbine Technology,2011,53(3). |
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| Authors: | DING Zhen-yu CHEN Wei TIAN Yong-xing LI Xue-zhi |
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| Affiliation: | DING Zhen-yu,CHEN Wei,TIAN Yong-xing,LI Xue-zhi(Ningxia Electric Power Research Institute of Ningxia Electric Company,Yinchuan 750002,China) |
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| Abstract: | Taking Mengda 600MW direct air-cooled units in our country into consideration,in view of serious hurdles of air-cooled units available-the unfavorable influences of Ambient Wind,we tentatively proceeds to making numerical simulation research on external flow field of direct air-cooled island by using CFD software Fluent.Found that the wind generating from the boiler house afterwards,hot air re-circulation and air inverse flow are the main factors of decline in the efficiency of air-cooled island heat.This p... |
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| Keywords: | environment wind Numerical simulation of fluent hot air re-circulation air inverse flow |
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