Uncertainty Estimate and Sensitivity Analysis of Lumped Thermal Model of Photovoltaic Modules

Authors

  • Eugenia Cornils Monteiro da Silva Energy and Environment Laboratory, Department of Mechanical Engineering, Faculty of Engineering, University of Brasilia (UnB), Brasilia/DF, Brazil
  • Antonio Cesar Pinho Brasil Junior Energy and Environment Laboratory, Department of Mechanical Engineering, Faculty of Engineering, University of Brasilia (UnB), Brasilia/DF, Brazil
  • Wesly Jean Energy and Environment Laboratory, Department of Mechanical Engineering, Faculty of Engineering, University of Brasilia (UnB), Brasilia/DF, Brazil

DOI:

https://doi.org/10.37934/arfmts.108.1.3951

Keywords:

Thermal modeling of PV-panels, mixed convection, solar plant, sensibility analyses

Abstract

The present work explores the assessment of lumped thermal modelling of solar PV modules and its convective heat transfer terms. The model of solar energy conversion in PV modules requires an accurate description of the electrical and thermal mechanisms involved in energy conversion. The variability of the heat flux over the surface is observed. It allows the uncertainty in the predicting of PV cell temperature and consequently to the conversion efficient is propagated to converted power, inducing an observed error in the efficiency of order of 0,1% for each °C (degree Celsius) and an error of 1W for each °C (degree Celsius). This error was estimated in the generation of a solar plant located in Pilar community in Rio de Janeiro and the possibility of a generation error of 0.6% was observed.

Author Biographies

Eugenia Cornils Monteiro da Silva, Energy and Environment Laboratory, Department of Mechanical Engineering, Faculty of Engineering, University of Brasilia (UnB), Brasilia/DF, Brazil

eugeniacornils@gmail.com

Antonio Cesar Pinho Brasil Junior, Energy and Environment Laboratory, Department of Mechanical Engineering, Faculty of Engineering, University of Brasilia (UnB), Brasilia/DF, Brazil

brasiljr@unb.br

Wesly Jean, Energy and Environment Laboratory, Department of Mechanical Engineering, Faculty of Engineering, University of Brasilia (UnB), Brasilia/DF, Brazil

weslyjean99@yahoo.com.br

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Published

2023-09-17

How to Cite

Cornils Monteiro da Silva, E., Brasil Junior, A. C. P., & Jean, W. . (2023). Uncertainty Estimate and Sensitivity Analysis of Lumped Thermal Model of Photovoltaic Modules. Journal of Advanced Research in Fluid Mechanics and Thermal Sciences, 108(1), 39–51. https://doi.org/10.37934/arfmts.108.1.3951

Issue

Vol. 108 No. 1: August (2023)

Section

Articles