集热工况下平板型太阳集热器与建筑一体化围护结构复合动态热分析模型  

COMBINED DYNAMIC THERMAL ANALYSIS MODEL FOR INTEGRATED ENVELOPE OF FLAT-PLATE SOLAR COLLECTOR AND BUILDING IN OPERATION

作　　者：于国清[1] 唐永强[1] 

机构地区：[1]上海理工大学环境与建筑学院,上海200093

出　　处：《太阳能学报》2016年第11期2896-2901,共6页Acta Energiae Solaris Sinica

基　　金：沪江基金(D14003);上海理工大学国家级项目培育计划

摘　　要：建立平板型太阳集热器与建筑一体化围护结构的复合动态热分析模型,以集热器的吸热板为分界面,吸热板的背部(与室内环境换热)采用一维动态传热模型(反应系数法),而吸热板的前面(与大气环境进行换热)采用二维稳态模型,以分界面的平均温度和热流为二者的边界条件和联系纽带进行求解。计算一个实际案例,并与Fluent动态模拟结果对比,结果表明复合动态热分析模型能够较准确地描述一体化围护结构的动态热过程,比Fluent模拟计算的耗时大幅降低,可用于长周期的模拟计算。Puts forward a combined dynamic thermal analysis model for the integrated envelope of flat-plate solar collector and building. Considering the collector absorber plate as interface, adopts a one-dimensional dynamic heat transfer model （reaction coefficient method）for the back of absorber plate which exchanges heat with indoor environment and a two-dimensional steady-state model for the front of the absorber plate which exchanges heat with the atmospheric environment. The combined dynamic thermal analysis model considers the interface average temperature and heat flux as boundary conditions and links for the back part and the front part, and solves the question together. Comparison between the results that predicted by the combined dynamic thermal analysis model for a practical case and the results by Fluent dynamic simulation showed that the combined dynamic thermal analysis model can accurately describe the dynamic thermal process of integrated envelope, which can be used for long-time simulation.

关 键 词：集热工况 太阳能与建筑一体化 围护结构 动态热分析模型 

分 类 号：TU83[建筑科学—供热、供燃气、通风及空调工程]