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master's thesis
Numerička analiza pasivnog sustava hlađenja samostojećeg fotonaponskog panela
Split: University of Split, Faculty of Electrical Engineering, Mechanical Engineering and Naval Architecture, 2021. urn:nbn:hr:179:448443
Ćurić, Josip
University of Split
Faculty of Electrical Engineering, Mechanical Engineering and Naval Architecture
Department of Mechanical Engineering and Naval Architecture

Institutional repository: Repository of the Faculty of Electrical Engineering, Mechanical Engineering and Naval Architecture

Cite this document

Ćurić, J. (2021). Numerička analiza pasivnog sustava hlađenja samostojećeg fotonaponskog panela (Master's thesis). Split: University of Split, Faculty of Electrical Engineering, Mechanical Engineering and Naval Architecture. Retrieved from https://urn.nsk.hr/urn:nbn:hr:179:448443

Ćurić, Josip. "Numerička analiza pasivnog sustava hlađenja samostojećeg fotonaponskog panela." Master's thesis, University of Split, Faculty of Electrical Engineering, Mechanical Engineering and Naval Architecture, 2021. https://urn.nsk.hr/urn:nbn:hr:179:448443

Ćurić, Josip. "Numerička analiza pasivnog sustava hlađenja samostojećeg fotonaponskog panela." Master's thesis, University of Split, Faculty of Electrical Engineering, Mechanical Engineering and Naval Architecture, 2021. https://urn.nsk.hr/urn:nbn:hr:179:448443

Ćurić, J. (2021). 'Numerička analiza pasivnog sustava hlađenja samostojećeg fotonaponskog panela', Master's thesis, University of Split, Faculty of Electrical Engineering, Mechanical Engineering and Naval Architecture, accessed 13 September 2024, https://urn.nsk.hr/urn:nbn:hr:179:448443

Ćurić J. Numerička analiza pasivnog sustava hlađenja samostojećeg fotonaponskog panela [Master's thesis]. Split: University of Split, Faculty of Electrical Engineering, Mechanical Engineering and Naval Architecture; 2021 [cited 2024 September 13] Available at: https://urn.nsk.hr/urn:nbn:hr:179:448443

J. Ćurić, "Numerička analiza pasivnog sustava hlađenja samostojećeg fotonaponskog panela", Master's thesis, University of Split, Faculty of Electrical Engineering, Mechanical Engineering and Naval Architecture, Split, 2021. Available at: https://urn.nsk.hr/urn:nbn:hr:179:448443

Metadata
TitleNumerička analiza pasivnog sustava hlađenja samostojećeg fotonaponskog panela
Title (english)Numerical analysis of a passive cooling system of a free-standing photovoltaic panel
AuthorJosip Ćurić
MentorSandro Nižetić https://orcid.org/0000-0001-6896-4605 (mentor)
MentorIvo Marinić-Kragić https://orcid.org/0000-0002-9680-6193 (komentor)
GranterUniversity of Split
Faculty of Electrical Engineering, Mechanical Engineering and Naval Architecture
(Department of Mechanical Engineering and Naval Architecture)
Split
Defense date and country2021-09-22, Croatia
Scientific / art field,
discipline and subdiscipline		TECHNICAL SCIENCES
Mechanical Engineering
Abstract
Ovaj se rad bavio problemom pada učinkovitosti fotonaponskih panela koji se javlja pri povišenim temperaturama fotonaponskih članaka. Učinkovitost panela opada za (0.25 ÷ 0.5)%/°𝐶 i cilj rada je bio predložiti način pasivnog hlađenja pomoću posebno oblikovane konstrukcije odnosno usmjerivača zraka. Cilj usmjerivača je povećati protok zraka tik uz stijenku i na taj način povećati toplinski odvod sa panela. Izradio se numerički model fotonaponskog panela sa i bez usmjerivača te se izvršila njihova usporedba. Zaključilo se kako RANS modeli ne predviđaju dobro turbulencije koje se odvijaju ispod panela i da je nužna veća razina modeliranja odnosno LES. Ovaj model je dosta zahtjevniji po pitanju računalnih resursa, ali zato daje bolje rezultate. Poboljšanja koja su se dobila koristeći ovaj model iznose više od 15% u korist modela sa usmjerivačem. Odrađena je i optimizacija pomoću RANS modela na način da se dimenzionirao usmjerivač s ciljem povećanja protoka zraka uz stijenku panela. Obrađena je i sama numerička pozadina softvera koji se koristio i navele su se prednosti i mane različitih razina modeliranja i modela turbulencije
Abstract (english)
This paper deals with the problem of declining efficiency of photovoltaic panels that occurs at elevated temperatures of photovoltaic cells. The efficiency of the panel decreases by (0.25 ÷ 0.5)%/°𝐶 and the aim of this work was to propose a method of passive cooling using a specially designed construction or an air-directing construction. The goal of the construction is to increase the air flow right next to the wall and thus increase the heat flux from the panel. A numerical model of a photovoltaic panel with and without the air-directing construction was made and compared. It was concluded that RANS models do not predict well the turbulence that takes place under the panels and that a higher level of modeling or LES is necessary. This model is much more demanding in terms of computing resources, but therefore gives better results. The improvements obtained using this model are more than 15% in favor of the airdirecting model. Optimization was also done using the RANS model in such a way that the airdirecting construction was dimensioned with the aim of increasing the air flow along the panel wall. The numerical background of the software used was discussed and the advantages and disadvantages of different levels of modeling and turbulence models were stated.
Keywords
Keywords (english)
Languagecroatian
URN:NBNurn:nbn:hr:179:448443
Study programmeTitle: Mechanical Engineering; specializations in: Structures and Energy Technology, Computer Aided Design and Engineering, Production Mechanical Engineering
Course: Computer Aided Design and Engineering
Study programme type: university
Study level: graduate
Academic / professional title: Magistar/magistra inženjer/inženjerka strojarstva (Magistar/magistra inženjer/inženjerka strojarstva)
Type of resourceText
File originBorn digital
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Created on2022-11-04 09:20:53