腔体式吸收器与真空管吸收器的热性能比较  

Comparison of Thermal Properties of Cavity TyPcAbsorbers ar1d Vacuum Tube Absorbers

作　　者：剑乔力[1] 葛新石[1] 程曙霞[1] 李业发[1] 

机构地区：[1]中国科学技术大学

出　　处：《热能动力工程》1996年第5期273-277,共5页Journal of Engineering for Thermal Energy and Power

摘　　要：本文分析了槽形抛物镜聚光集热器中管簇结构和环套结构的腔体式吸收器以及真空管吸收器的热物理特征,画出其热阻网络,建立太阳能一般性控制方程,并以此为依据对这三种吸收器的热性能进行了数值分析比较。An analysis is performed of the thermo-physical characteristics of cavity type absorbers with tube bun-dle construction and ring-casing construction used in a parabolic solar energy collector as well as a vac-uum tube absorber. The thermal resistance network in the said absorbers is shown in an illustration and the general control equation of the solar energy collector is also provided. Based on the above the au-thors have conducted a numerical analysis and comparison of the thermal properties for the above-citedthree types of absorbers.

关 键 词：太阳能吸收器 热效率 太阳能集热器 

分 类 号：TK513[动力工程及工程热物理—热能工程]