低温共沸混合工质HC170/HFC23池沸腾传热实验研究  

EXPERIMENTAL STUDY OF POOL BOILING HEAT TRANSFER OF HC170/HFC23 SYSTEM

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：《低温物理学报》2007年第1期38-41,共4页Low Temperature Physical Letters

基　　金：国家自然科学基金(项目编号:50576102)资助的课题~~

摘　　要：实验测量了新型共沸混合工质HC170／HFC23的池核沸腾传热特性,加热面为紫铜表面，实验测量的压力范围为0．1-0．5MPa，热流范围为10-300kW／m^2．实验结果与传统的低温共沸混合工质R503和R508B的实验数据进行了比较，发现新型共沸工质HC170／HFC23的传热系数与R503相近并高于R508B．同时用现有的经验关联式对实验结果进行了预测，并对预测结果进行了分析．The heat transfer data of nucleate pool boiling on a smooth flat surface were measured in HC170/ HFC23 system. The experiment was carried out at different pressures from 0. 1 to 0. 5 MPa, while the heat fluxes in the experiment vary between 300 and 10 kW/m^2. The experimental results are compared with the measured data of both systems of R503 and R508B. It can be found that （HFC170/HC23 =0. 582/0.418） system showed higher heat transfer coefficient than R508B system and is approximate to R503 system. At the same time, Predicted results with existing correlations were compared with the experimental data and in-depth analysis is present in this paper.

关 键 词：沸腾传热 二元混合工质 低温 

分 类 号：O514.1[理学—低温物理]