摘要
对水平管外纯R134a和三种不同浓度的R134a/R125混合工质池沸腾换热性能进行了试验研究。在试验研究的基础上对二元混合工质的沸腾换热进行理论分析,并提出了二元混合工质的沸腾换热预测关联式。在实验范围内,实验值与预测值的最大偏差不超过±20%,可以满足工程应用的需要。
Pool boiling heat transfer of pure R134a and a binary R134a/R125 mixture with three different concentrations outside the horizontal tube was investigated experimentally. Theoretical analysis of binary mixed refrigerant boiling heat transfer was done based on the experimental study, and a correlation for predicting boiling heat transfer of binary mixed refrigerant was proposed. The maximum deviation of the experimental values and predicted values was less than ±20% in this paper, it could meet the need of engineering application.
出处
《低温与超导》
CAS
北大核心
2014年第7期54-59,共6页
Cryogenics and Superconductivity
基金
河南省高等学校青年骨干教师资助计划(2011GGJS-114)
河南省教育厅科技攻关计划项目(13B480297)资助
关键词
混合工质
池沸腾R134a
R125
传热系数预测
Mixed refrigerant, Pool boiling, R134a/R125, Heat transfer coefficient prediction
