二元混合工质HFC23/CFC13池核沸腾传热的实验研究  

Pool boiling heat transfer measurement of the binary mixtures HFC23/CFC13

作　　者：张立强[1] 公茂琼[2] 吴剑峰[2] 徐烈[1] 

机构地区：[1]上海交通大学低温与制冷研究所,上海200030 [2]中国科学院理化技术研究所,北京100080

出　　处：《低温与超导》2006年第2期97-99,104,共4页Cryogenics and Superconductivity

基　　金：国家自然科学基金资助项目(50576102)

摘　　要：实验测量了二元混合工质HFC23／CFCl3池核沸腾传热特性。加热面为紫铜表面，实验测量的压力范围为0.1-0．55MPa。热流范围为10kW／m^3-300kW／m^2。实验数据同现有经验关联式的计算结果相比较，发现Fujita and Tsutsu／关联式和Thome and Shakir关联式对混合工质HFC23／CFC13的传热系数预测较准确，预测值与实验值之差≤±20％。The heat transfer data of nucleate pool boiling on a smooth flat surface were measured for binary mixtures of HFC23/ CFC13. The experiment was carried out at different pressures from 0.1 to 0. 5 5MPa, while the heat fluxes in the experiment vary between 300 and 10 kW/m^2. Predicted results with three well -known correlations were compared with the experimental data. Correlations by Fujita and Tsutsui and Thome and Shakir show acceptable accuracy in prediction. Most of the data deviations were within ±20% with the correlations.

关 键 词：池沸腾 传热 二元混合工质 共沸 

分 类 号：TB64[一般工业技术—制冷工程] TQ021.3[化学工程]