69TH CONFERENCE OF THE ITALIAN THERMAL ENGINEERING ASSOCIATION, ATI 2014
|
2015年
/
81卷
关键词:
Solar energy;
Augmented solar flat collector;
Solar collector;
PLANE REFLECTOR;
BOOSTER MIRRORS;
ENERGY;
SYSTEMS;
ENHANCEMENT;
ORIENTATION;
DESIGN;
D O I:
10.1016/j.egypro.2015.12.085
中图分类号:
O414.1 [热力学];
学科分类号:
070201 [理论物理];
摘要:
In this study a theoretical analysis of a collector augmented by a bottom booster reflector is presented. An analytical model has been developed and used to estimate the solar irradiation passing through the transparent cover of a flat collector, both with and without a bottom reflector. The analytical model is based on the anisotropic sky model and takes into account a finite length system with different angular configurations and reciprocal shading and reflections between reflector and collector. Computer simulations have been carried out in order to find the optimum angles of the reflector with respect to the plane of the collector. Optimal inclinations of the collector and reflector for each month at 39 degrees N latitude have been identified. (C) 2015 Published by Elsevier Ltd.