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Photovoltaic Power Generating System Project Engineering and its Functioning Simulation in Relation with the Products Available on the Market

The energy’s production by renewable sources is growing rapidly in interest during the recent years, due to the fossile combustibles continuous cost’s increase and to the polluting emissions. The photovoltaic sector is actually in strong expansion, also thanks to economic incentives proportional to the electric energy’s production. Therefore this circumstance has offered the opportunity to valuate the installation of a photovoltaic system on the building’s roof covering of the Industrial Engineering Department at the Parma’s Polytechnic University.
The first phase of the thesis work regards the realization of a system pattern, by the TRNSYS calculation code, through which it is possible its functioning’s simulation. Then have been selected a determined number of modules, among those actually more diffused on the market, formed of monocrystalline, polycrystalline and amorphous silicon, and it has been valuated the energy’s quantity produced during a year period, inserting in the TRNSYS code the Parma solar radiation’s data, related to the year 2006. In order to compare among them the performances of the different modules, it is calculated the specific energy produced, that is the one produced in a year per surface’s unit of the module.
Then it is possible to optimize the modules orientation and inclination, and to calculate the number of modules to be installed in relation to the capital available for the investment, and in this way it is possible to draw the energetic, economic, and environmental advantages, that is respectively the energy’s quantity produced in a year, the investment recovery time and the
net economic benefit obtained at the end of the system useful life, and the carbon dioxide emissions avoided.

Mostra/Nascondi contenuto.
Introduction The renewable energy sources are considered those whose actual utilization doesn’t compromize the future availability, and the interest in such sources is much increased during the recent years, due to numerous factors, like for instance the fossile combustibles costs continuous rising, and the constant increase of the pollutant emissions of carbon dioxide and other gases able to cause the glass-house effect. In Italy, in the renewable sources field, the photovoltaic sector is actually the one in strongest expansion (togheter with the eolean one), also thanks to an economic incentives scheme, proportional to the production, and its prevalent application is the one on the buildings top and connected to the electric network. Starting from these considerations, through the present thesis work, it has been valued the installation’s possibility of a photovoltaic system on a building property of the Parma Polytechnic University, in particular on the Building 7 flat roof covering of the Industrial Engineering Department, at the university campus area. Before the real and proper study of the system considered in this specific case, are presented the characteristics of the electric power production in Italy and in the world, it is described the functioning principle of the individual photovoltaic cells, which allows the radiant energy’s conversion into electric power, and are presented the components constituting a power system of this kind. Afterwards, it is illustrated an analytical methodology for the radiation incident on a specific surface, which allows an annual radiation’s estimation on the different geographical areas, result that can be graphically represented on maps, from which it is possible for instance to acquire qualitative information concerning the theoretical power quantity produced by a system of a determined power, located in a specific location. The power’s quantity produced datum during an annual period becomes fundamental, because the power is remunerated at a higher price than the market’s one, thanks to the incentives scheme existing at this moment in Italy (denominated “Energy Bill”), whose regulations are synthetically exhibited. The power system under examination in this particular case, has been studied in relation with the products actually available on the market, both for what it concernes the photovoltaic modules and for the other components and its functioning simulation instruments. In this way it has been selected the TRNSYS calculation code, and it has 4

Traduzione

Facoltà: Ingegneria

Traduttore: Franco Orlandini Contatta »

Composta da 129 pagine.

 

Questa tesi ha raggiunto 254 click dal 18/01/2010.

Disponibile in PDF, la consultazione è esclusivamente in formato digitale.