直接空冷凝汽器换热性能影响因素研究Study on Influencing Factors of Heat Transfer Performance of Direct Air-Cooled Condenser
刘晓玲;张力;王智;
摘要(Abstract):
以内蒙古某电厂为研究对象,采用理论计算和数值模拟相结合的方法,研究了环境温度、风速、湿度及风机转速对直接空冷凝汽器换热特性的影响。研究表明:来流风速为(13~15)m/s时,总换热量较设计工况降低了(3.2~7.5)%;环境温度对总换热量影响很大,但当环境温度大于15℃时,总换热量下降趋势逐渐变的缓慢;环境湿度对总换热量的影响较小;随着环境风速的增加,各空冷单元风机进口流量整体呈下降趋势,其中迎风侧的第一个风机进口流量降幅最大。
关键词(KeyWords): 来流风速;环境温度;凝汽器;直接空冷;换热特性
基金项目(Foundation): 国家自然科学基金项目(51306059)
作者(Author): 刘晓玲;张力;王智;
Email:
DOI: 10.19356/j.cnki.1001-3997.2021.03.011
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