Al-Si合金与高温热管的传热性能试验  

Heat transfer performance test of Al-Si alloy and high-temperature heat pipe

作　　者：李石栋[1] 张仁元[1] 李风[1] 史保新[1] 陈观生[1] 

机构地区：[1]广东工业大学材料与能源学院,广东广州510006

出　　处：《可再生能源》2011年第5期20-23,共4页Renewable Energy Resources

基　　金：国家高技术研究发展计划(2007AA05Z460)

摘　　要：提出了一种基于太阳能碟式聚光器的Al-Si合金储能锅炉的构想,搭建了Al-Si合金与高温热管传热的实验平台。试验结果表明,Al-Si合金与高温热管之间的传热密度为54.4 kJ/m2。对Al-Si合金的传热温度分布进行模拟,以热流密度为54.4 kJ/m2,换热系数为200 W/(m2.K),空气温度25℃的对流边界条件时,模拟结果和试验测试结果比较吻合,为Al-Si合金储能锅炉设计提供了依据。Design concept of the Al-Si alloy energy storage boiler based on a solar dish concentrator was proposed. An experimental platform of heat transfer performance of Al-Si alloy and high-temperature heat pipe was putted up. The experimental results showed that the heat transfer density is about 54.4 kJ/m^2 between high-temperature heat pipe and Al-Si alloy. The temperature distribution of Al-Si alloy was simulated under the convective boundary condition of heat flow rate density was 54.4 kJ/m^2, heat transfer coefficient of 200 W/（m^2· K）, air temperature of 25 ~C, the simulated results are consistent with the experimental test results,which provided the basis for the design of the solar Al-Si energy storage boiler.

关 键 词：Al—Si合金 热管 传热性能 

分 类 号：TK513.5[动力工程及工程热物理—热能工程] TK514