Projeto técnico e econômico de uma estrutura com dupla função para painéis fotovoltaicos

Abstract

The present work aims to develop a technical design of a mechanical structure, complemented by an economic feasibility study on the implantation of a structure for photovoltaic panels with dual function in the campus of the Federal University of Santa Maria. For the modeling of the technical drawings and representative drawings of the structure, SolidWorks software was used. Subsequently, the loads incident on the structure were determined through some basic concepts of the standard NBR 6123. The field of stresses and deformations incident on the structural profiles, as well as the generation of the meshes and the simplifications were made through the software of finite elements. To complement the set was designed a photovoltaic system with nominal power of 51.48 kWp and capable of delivering on average 5,603.21 kWh of monthly effective power composed of 152 photovoltaic panels. In the economic analysis, four scenarios were simulated, each corresponding to a tariff flag category. The economic methods used were Net Present Value, Internal Rate of Return, Simple Payback and Discounted Payback. The cost of the power generation metric (LCOE) was also used. As the main result, the scenario with the greatest economic attractiveness corresponds to the scenario marked by the red flag of level 2 with NPV of R $ 665,936.99 and IRR of 1.77%, PBS of 62 months, PBD of 73 months and LCOE of 0, $ 2583 / kWh.