Numerical Simulation of Wind Action on Solar Panel Placed on Flat Roofs with and without Parapet
Tomme: LVIII (LXII) Fascicle: 1 | 2012
Pages: 139-156
Abstract text:
Used to convert solar energy into thermal energy (solar collectors) or electricity (photovoltaic panels), solar panels has become very popular in the last decade. Increasing the number of solar panels used in the world, determines behavior research on these systems in the aerodynamic field. Wherever they are located, on flat roofs, pitched roofs or at ground level, the wind represents the main action that determine the design of support systems for solar panels. In this paper the aim is to determine the distribution of pressure on solar panels installed in a compact field on a flat roof. Numerical simulations are used for analysis of wind action on solar panels, located on flat roofs with and without parapets. In the specialty literature is recommended orientation of solar panels to South, South-East, respectively South-West, for benefit of a better sunlight. In Romania the dominant wind direction is from North, North-East or North-West, in which case the wind blows behind the field of panels. It is aimed the highlight of shielding effect produced by the building, respectively by building and parapet on the pressure distribution on the solar panels surface. Numerical simulations are performed in ANSYS 12 CFX, for an incidence wind angle of 45°.
Key Words:
wind direction; solar panels; CFD simulation; flat roof; shielding effects.
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