Banca de DEFESA: José César Martins de Oliveira

Uma banca de DEFESA de MESTRADO foi cadastrada pelo programa.
STUDENT : José César Martins de Oliveira
DATE: 26/04/2023
TIME: 16:00
LOCAL: Plataforma Microsoft Teams
TITLE:

ANALYSIS OF THE BENEFITS OF SOLAR TRACKING BY PHOTOVOLTAIC MODULES FOR DIFFERENT CLIMATE CONDITIONS

KEY WORDS:

Radiation; tracking; generation; photovoltaic.

PAGES: 69
BIG AREA: Engenharias
AREA: Engenharia Mecânica
SUMMARY:

The search for renewable energy sources is becoming increasingly necessary on a planet that is impacted by environmental factors. The climate changes caused by CO2-emitting human activities, of which electricity generation is a major source, bring severe impacts on environmental, social, and economic aspects of society. These facts urge for improvements in renewable energy generation, for which solar energy is major player, given that photovoltaic (PV) power is both highly renewable and, nowadays, economically competitive. It is well recognized that PV panels with solar tracking is advantageous. However, it is not clear how local climatology impacts these benefits. For instance, in place where cloudy sky is frequent will have little increase in energy generation due to solar tracking. On the other end, PV panels subjected to high direct solar irradiance will experience high cell temperature, offsetting the increase in incident solar radiation at the PV panel promoted by the tracking devices. In order to find out how local meteorological conditions could impact the benefit of solar tracking PV systems, a thermal model for a PV module was developed. The model is based on equations involving solar incidence for the main components of the panel. Solar radiation is accounted by its components (direct, diffuse, and global) and thermal radiation exchange considers meteorological conditions. Inertial term is neglected following previous experimental work, which showed that it is much smaller than radiation and convection heat transfer terms. PV power generation is estimated as a function of temperature of the PV cell according to manufacture datasheet. The model will be applied to a fixed PV (inclined with an angle correspondent to local latitude) and solar tracking PV module. Simulations will be performed for a whole year in hourly time steps. Preliminary results for Brasilia have shown a relevant increase in power generation due to solar tracking but highly seasonal. The model will be applied to major cities in Brazil with different climatological conditions to understand how local climate affects the gains in power generation as a result of the solar tracking system

BANKING MEMBERS:
Interno - 3138349 - EDGAR AMARAL SILVEIRA
Externo à Instituição - Eugênia Cornils Monteiro da Silva - CEUB
Interno - 2245668 - MARIO BENJAMIM BAPTISTA DE SIQUEIRA
Interno - 3375759 - TAYGOARA FELAMINGO DE OLIVEIRA