Ali Hamada Fakra

A Sensitivity Analysis of a Thermal Model of Photovoltaic Panel

This paper deals with a sensitivity analysis of a thermal model. An integrated thermal modelling of photovoltaic panels (PV panels) has been built. In the case studied in this paper, the PV panel is considered like a solar protection of the building. The modelling has been run for Reunion Island climate, which has a strong solar radiation as encountered in tropical and humid conditions. The thermal model studied here has already been presented in a precedent work. In this work, the model has been validated, for comparing the results predicted and that measures showed significant differences. A sensitivity analysis seemed necessary to highlight the parameters that have the most influence on the thermal model. This will see which parameters to focus on during a future optimization of the model.

Heat transfer in buildings : application to air solar heating and Trombe wall design

The aim of this paper is to briefly recall heat transfer modes and explain their integration within a software dedicated to building simulation (CODYRUN). Detailed elements of the validation of this software are presented and two applications are finally discussed. One concerns the modeling of a flat plate air collector and the second focuses on the modeling of Trombe solar walls. In each case, detailed modeling of heat transfer allows precise understanding of thermal and energetic behavior of the studied structures. Recent decades have seen a proliferation of tools for building thermal simulation. These applications cover a wide spectrum from very simplified steady state models to dynamic simulation ones, including computational fluid dynamics modules (Clarke, 2001). These tools are widely available in design offices and engineering firms. They are often used for the design of HVAC systems and still subject to detailed research, particularly with respect to the integration of new fields (specific insulation materials, lighting, pollutants transport, etc.). Available from: http://www.intechopen.com/books/evaporation-condensation-and-heat-transfer/heat-transfer-in-buildings-application-to-solar-air-collector-and-trombe-wall-design