风向对半塔运行间冷散热器性能影响的数值研究  

Numerical Research on the Influence of Heat Transfer Characteristics of Indirect Air Cooled Radiator Operating Around Half Cooling Tower Under Different Wind Directions

作　　者：薛海君 王永新 江翰 石磊[2] 

机构地区：[1]双良节能系统股份有限公司,江苏江阴214444 [2]北京交通大学土建学院,北京100044

出　　处：《华北电力技术》2017年第1期45-49,共5页North China Electric Power

基　　金：江苏省科技成果转化专项基金(BA2009023)

摘　　要：环境因素对间接空冷散热器性能有着显著影响。利用计算传热学(NHT)软件FLUENT,对自然通风状态下,某2×300 MW机组分期投运的两机一塔表面式间接空冷散热器和空冷塔进行流动和换热性能的数值模拟、分析和研究。在考核工况环境风速下,研究不同风向对半塔运行的间接空冷散热器流动和换热性能。模拟结果表明,当间冷散热器半塔运行时,间冷塔四周剩余部分应密封,以保证换热效果。Indirect air cooled radiator performance is greatly influenced by the environmental factors. By using the nu- merical heat transfer（NHT） software called FLUENT,the flow and thermal characteristics of air cooling tower using indirect air cooled radiator（IACR） under natural draft for a 2 × 300 MW stage operation unit is simulated and ana- lyzed. Under the environmental wind speed and directions of IACR assessment condition,the flow and heat transfer performance of IACR operation around half-tower is examined. The simulation results show as IACR operating half- tower,the rest part around the cooling tower must be windtight to ensure the heat transfer performance of IACR.

关 键 词：工程热物理 间接空冷散热器 空冷塔 自然通风 数值模拟 

分 类 号：TK264.1[动力工程及工程热物理—动力机械及工程]