化工学报2016，Vol.67Issue(z1)：246-252,7.DOI:10.11949/j.issn.0438-1157.20160882
水平矩形通道内含不凝气的蒸汽凝结换热
Condensation with non-condensable gas in horizontal rectangular channel
摘要
Abstract
The influence of N2 mass fraction,coolant mass flux and mixture mass flux on condensation heat transfer in the horizontal rectangular channel have been investigated,with the mixture mass flux ranging from 38 kg · m-2 · s 1to 132 kg · m-2 · s-1.The results show that when the steam flows at high speed,the deterioration of noncondensable gas on the condensation heat transfer is relatively decreased,8％ noncondensable gas results in the reduction of 26.4％ in condensation heat transfer coefficient.The condensation heat transfer coefficient increases with the increase of the mixture mass flux and decreases with the increase of the coolant mass flux.Moreover,the variations of the condensation heat transfer along the mixture flow direction are also obtained,the results show that the local condensation heat transfer coefficient decreases along the mixture flow direction.关键词
矩形通道/不凝气/蒸汽凝结Key words
rectangular channel/noncondensable gas/condensation分类
能源科技引用本文复制引用
程福宁,戴仁坤,温建军,殷展,曾敏,王秋旺..水平矩形通道内含不凝气的蒸汽凝结换热[J].化工学报,2016,67(z1):246-252,7.基金项目
国家自然科学基金项目(51276139).supported by the National Natural Science Foundation of China (51276139). （51276139）
