摘要
利用汽液两相流基本理论,在质量守恒和动量守恒定律基础上得出了计算电厂直接空冷凝汽器散热器倾斜下降翅片管内压力降的计算模型.利用该模型对两个实验工况进行了计算,并将计算结果与实验结果进行了比较.该方法为计算低压冷凝换热管中的压降提供了一种新的手段.
Using vapor-liquid two-phase flow theory and based on the mass and momentum conservation, the author educed a computing model for computing the vapor-liquid two-phase pressure decrement in power plant direct air-cooled condenser tube. This model is a new one for computing the vapor-liquid two-phase pressure decrement in lower pressure condensing heat transfor tube. Using the model, the author computes two states and compares the results from experiment. Results show that the computed model the author puts forward is good for computing the vapor-liquid two-phase pressure decrement.
出处
《上海电力学院学报》
CAS
2008年第1期16-18,31,共4页
Journal of Shanghai University of Electric Power
基金
上海市教委重点项目(05ZZ55)
上海市自然科学基金项目(04ZR14076)
上海市重点学科建设项目(P1302)
关键词
压力降
汽液两相流
空冷凝汽器
翅片管
pressure decrement
vapor-liquid two-phase flow
direct air-cooled condenser
wingtube
