Primjena metode konačnih elemenata u toplinskom izračunu fotonaponskog panela

master's thesis

• Title (english): Application of the finite element method in the thermal calculation of the photovoltaic panel
• Author: Jura Kožić
• Mentor: Siniša Šadek (mentor)
• Committee member: Siniša Šadek (predsjednik povjerenstva)
• Committee member: Krešimir Trontl (član povjerenstva)
• Committee member: Mario Matijević (član povjerenstva)
• Granter: University of Zagreb; Faculty of Electrical Engineering and Computing; Zagreb
• Defense date and country: 2024-07-02, Croatia

Abstract

Električna energija neizostavna je komponenta ljudskog života danas. Svakim danom sve veći je naglasak na proizvodnji čiste električne energije bez emisija stakleničkih plinova. Obnovljivi izvori energije zauzimaju sve veći udio u ukupnoj proizvodnji. Energija Sunca neiscrpan je izvor energije i dostupan je svugdje u svijetu u dovoljnoj količini. Fotonaponski paneli novija su tehnologija proizvodnje električne energije čija popularnost svake godine raste. Kako bi se efikasno proizvodilo potrebno je napraviti detaljne analize prije same instalacije postrojenja. Računalni modeli i simulacije uvelike nam pomažu u generalnom shvaćanju fizikalnih pojava te nam također pomažu pri donošenju daljnjih odluka. U ovome radu napravio sam analize hlađenja panela okolnim zrakom. Fotonaponski panel nacrtao sam prema stvarnim dimenzijama u programu Autodesk Inventor te je simulacija provedena u Ansys Fluentu za 2D i 3D geometriju. Naglasak simulacija bila je 3D simulacija koja daje relativno točan uvid u pojave na i okolo panela. Cilj rada bio je dobiti temperaturnu sliku panela za različite nagibe i različite smjerove puhanja vjetra. Nakon dobivene temperaturne slike potrebno je bilo izvući koeficijent prijenosa topline s panela na okolni zrak i iz njega izvući zaključak o vladanju panela. Nakon provedenih simulacija zaključio sam da fotonaponski panel može raditi u svim položajima bez da se pregrijava te sam objasnio odnos vektora vjetra s koeficijentom prijenosa topline te utjecaj temperature na napon, struju i efikasnost panela.

Abstract (english)

Electricity is an indispensable component of human life today. Every day there is an increasing emphasis on the production of clean electricity without greenhouse gas emissions. Renewable energy sources are taking an increasing share of total production. The energy of the Sun is an inexhaustible source of energy and is available everywhere in the world in sufficient quantity. Photovoltaic panels are a newer technology of electricity production, whose popularity is growing every year. In order to be efficiently produced, it is necessary to make detailed analyzes before the installation of the plant itself. Computer models and simulations greatly help us in the general understanding of physical phenomena and also help us make further decisions. In this paper, I made analyzes of the cooling of panels with ambient air. I drew the photovoltaic panel according to the actual dimensions in the Autodesk Inventor program, and the simulation was carried out in Ansys Fluent for 2D and 3D geometry. The emphasis of the simulations was a 3D simulation giving relatively accurate insight into phenomena on and around the panels. The aim of the work was to obtain a temperature picture of the panel for different inclinations and different wind blowing directions. After the obtained temperature picture, it was necessary to extract the heat transfer coefficient from the panel to the surrounding air and draw a conclusion from it about the behaviour of the panel. After the simulations, I concluded that the photovoltaic panel can work in all positions without overheating, and I explained the relationship of the wind vector and the heat transfer coefficient. As well I explained the connection between temperature, voltage, current and efficiency of PV.

• Keywords: Ansys Fluent; FEM; FVM; PV; Koeficijent prijenosa topline; Napon; Struja
• Keywords (english): Ansys Fluent; FEM; FVM; PV; Heat transfer coefficient; Voltage; Current
• Language: croatian
• URN:NBN: urn:nbn:hr:168:561636
• Study programme: Title: Electrical Engineering and Information Technology; Study programme type: university; Study level: graduate; Academic / professional title: magistar/magistra inženjer/inženjerka elektrotehnike i informacijske tehnologije (magistar/magistra inženjer/inženjerka elektrotehnike i informacijske tehnologije)
• Type of resource: Text
• File origin: Born digital
• Access conditions: Closed access
• Created on: 2024-10-12 21:10:48