摘要
以R22为制冷工质,分别采用四种模型计算家用空调换热器管内制冷剂的空泡系数,并根据计算结果分析四种模型各自的特点。同时还分析质量流量对Premoli模型和Harms模型的影响。分析结果表明,在中等质量流量时,用Harms模型来计算家用空调换热器管内制冷剂的空泡系数比较合适。
Calculates the void fraction of domestic air-conditioner heat exchanger with four models while R22 is the working fluid. Analyzes the characteristics of the four models based on calculation results and the influence of mass flux on Premoli model and Harms model. It shows that it＇s suitable to calculate the void fraction of domestic air-conditioner heat exchanger with Harms model at moderate mass flux level.
出处
《制冷与空调》
2007年第1期43-45,共3页
Refrigeration and Air-Conditioning
关键词
换热器
空泡系数
模型
质量流量
heat exchanger
void fraction
model
mass flux
