Numerical and Experimental Study of the Impact of Key Parameters on a PVT Air Collector:Mass Flow Rate and Duct Depth  

作　　者：Ismail BAKLOUTI Zied DRISS 

机构地区：[1]National School of Engineers of Monastir,University of Monastir,5019,Monastir,Tunisia [2]Laboratory of Electromechanical Systems(LASEM),National School of Engineers of Sfax,University of Sfax,3038,Sfax,Tunisia

出　　处：《Journal of Thermal Science》2021年第5期1625-1642,共18页热科学学报（英文版）

基　　金：The financial support for this work is provided by Sustainable Energy Company(http://www.sencom-tn.com),under the project:Smart Aero-voltaic System(SAV).

摘　　要：The PVT-air solar system simultaneously generates electrical and thermal energy.Therefore,increasing the cost-effectiveness of the system requires an appropriate choice of key parameters such as mass flow rate and air channel depth.In this paper,a PVT-air kit of a single module with a 30°slope was used to measure photovoltaic electricity and air heating power in the city of Sfax,Tunisia.Besides,a computer method was implemented using the ANSYS Fluent 17.0 software and the MATLAB program to analyse the properties of the airflow and to characterise PVT-air yields under different mass flow rates and depths.From the comparison of numerical and experimental data,the numerical method was validated with a good agreement.Indeed,we have found that increasing of the airflow rate improves the thermal efficiency with a slight change on electrical output.However,the reduction in depth shows an improvement on thermal efficiency and a negligible effect on electrical efficiency.Also,we have presented the thermal and electrical performance of PVT-air as a function of the key parameters with the Hottel-Whillier-Bliss formulation.

关 键 词：solar energy PVT-air thermal experimental numerical performance 

分 类 号：TM615[电气工程—电力系统及自动化] TK519[动力工程及工程热物理—热能工程]