The use of solar panels for energy production in low and medium height buildings has increased worldwide in recent years. The effect of wind loads on these solar panels, installed in building covers, is one of the main problems facing the design and operation of these structures in tropical areas. Recent research and international standards on this type of energy source and in this type of housing show an insufficient analysis of the loads that occur on the covers. The aim of this work is to carry out a study of the influence of wind loads on a photovoltaic installation in building covers, using computational fluid dynamics and current regulations. Two regulations (NC 285: 2003 and EN 1991–1-4) and two professional computational packages (Autodesk CFD and SolidWorks) have been used, using as a case study a self-ballasted photovoltaic installation oriented towards the west, located in a 20 m high building in a country exposed to hurricane winds of category V on the Saffir-Simpson scale. The results showed that, given the appropriate parameters, the wind loads calculated according to the two standards are equivalent. It was also found that the numerical results of the calculation methods used were close to the code requirements.

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Simulation of Wind Loads in a Self-ballasted Photovoltaic System by Means of CFD

  • Rolando Esteban Simeón-Monet,
  • Julio Cesar Borrero-Neninger,
  • Rolando Enrique Simeón-Pérez

摘要

The use of solar panels for energy production in low and medium height buildings has increased worldwide in recent years. The effect of wind loads on these solar panels, installed in building covers, is one of the main problems facing the design and operation of these structures in tropical areas. Recent research and international standards on this type of energy source and in this type of housing show an insufficient analysis of the loads that occur on the covers. The aim of this work is to carry out a study of the influence of wind loads on a photovoltaic installation in building covers, using computational fluid dynamics and current regulations. Two regulations (NC 285: 2003 and EN 1991–1-4) and two professional computational packages (Autodesk CFD and SolidWorks) have been used, using as a case study a self-ballasted photovoltaic installation oriented towards the west, located in a 20 m high building in a country exposed to hurricane winds of category V on the Saffir-Simpson scale. The results showed that, given the appropriate parameters, the wind loads calculated according to the two standards are equivalent. It was also found that the numerical results of the calculation methods used were close to the code requirements.