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master's thesis
Numerička analiza izmjene topline konvekcijom
2024. urn:nbn:hr:190:273844
Gerometta, Michele
University of Rijeka
Faculty of Engineering
Department of Thermodynamics and Energy Engineering
Section of Thermodynamics and Thermal Engineering

Cite this document

Gerometta, M. (2024). Numerička analiza izmjene topline konvekcijom (Master's thesis). Rijeka: University of Rijeka, Faculty of Engineering. Retrieved from https://urn.nsk.hr/urn:nbn:hr:190:273844

Gerometta, Michele. "Numerička analiza izmjene topline konvekcijom." Master's thesis, University of Rijeka, Faculty of Engineering, 2024. https://urn.nsk.hr/urn:nbn:hr:190:273844

Gerometta, Michele. "Numerička analiza izmjene topline konvekcijom." Master's thesis, University of Rijeka, Faculty of Engineering, 2024. https://urn.nsk.hr/urn:nbn:hr:190:273844

Gerometta, M. (2024). 'Numerička analiza izmjene topline konvekcijom', Master's thesis, University of Rijeka, Faculty of Engineering, accessed 23 April 2025, https://urn.nsk.hr/urn:nbn:hr:190:273844

Gerometta M. Numerička analiza izmjene topline konvekcijom [Master's thesis]. Rijeka: University of Rijeka, Faculty of Engineering; 2024 [cited 2025 April 23] Available at: https://urn.nsk.hr/urn:nbn:hr:190:273844

M. Gerometta, "Numerička analiza izmjene topline konvekcijom", Master's thesis, University of Rijeka, Faculty of Engineering, Rijeka, 2024. Available at: https://urn.nsk.hr/urn:nbn:hr:190:273844

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Metadata
TitleNumerička analiza izmjene topline konvekcijom
Title (english)Numerical analysis of convective heat transfer
AuthorMichele Gerometta
MentorKristian Lenić (mentor)
Committee memberKristian Lenić (predsjednik povjerenstva)
Committee memberAnica Trp (član povjerenstva)
Committee memberSanjin Braut (član povjerenstva)
GranterUniversity of Rijeka
Faculty of Engineering
(Department of Thermodynamics and Energy Engineering)
(Section of Thermodynamics and Thermal Engineering)
Rijeka
Defense date and country2024-09-19, Croatia
Scientific / art field,
discipline and subdiscipline		TECHNICAL SCIENCES
Mechanical Engineering
Process Energy Engineering
Abstract
U radu je provedena numerička analiza raspodjela temperatura zraka u grijanom prostoru. Definiran je matematički model te rubni i početni uvjeti. Kao rubni uvjet zadaje se toplinski tok na zidovima i prozoru, dok se temperatura zadaje ogrjevnom tijelu. Za rješavanje matematičkog modela izabrana je metoda kontrolnih volumena te je rad numerički riješen. Pomoću softvera Ansys Fluent analizirana su tri različita slučaja slobodne konvekcije između ogrjevnog tijela i zraka u jednoj prostoriji.... More Kod prva dva slučaja ogrjevno tijelo je podno grijanje, dok je za treći slučaj ogrjevno tijelo radijator ili električna grijalica. Rezultati su prikazani kao polja temperatura i polja vektora brzina. Također dane su tablične vrijednosti temperatura u karakterističnim točkama kao i vrijednosti koeficijenata prijelaza topline konvekcijom. Najviše temperature postižu se za radijatorsko grijanje, a najniže za podno grijanje na 20 ºC. Zrak struji u smjeru kazaljke na satu, a raspodjela temperatura je ujednačenija za slučajeve s podnim grijanjem u odnosu na slučaj s radijatorskim grijanjem. Less
Abstract (english)
The paper presents a numerical analysis of air temperature distribution in a heated space. A mathematical model, as well as boundary and initial conditions, were defined. Heat flux on the walls and window is set as a boundary condition, while the temperature is assigned to the heating element. The control volume method was chosen for solving the mathematical model, and the problem was solved numerically. Using the Ansys Fluent software, three different cases of free convection between... More the heating element and the air in a room were analyzed. In the first two cases, the heating element is underfloor heating, while in the third case, the heating element is a radiator or an electric heater. The results are presented as temperature fields and velocity vector fields. Additionally, tabulated values of temperatures at characteristic points and values of convection heat transfer coefficients are provided. The highest temperatures are achieved with radiator heating, and the lowest with underfloor heating set to 20 ºC. Air flows in a clockwise direction, and the temperature distribution is more uniform in the cases with underfloor heating compared to the case with radiator heating. Less
Keywords
Keywords (english)
Languagecroatian
URN:NBNurn:nbn:hr:190:273844
Study programmeTitle: Mechanical 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
Access conditionsOpen access
Terms of useLicence Attribution 4.0 International (CC BY 4.0) icon
Created on2024-09-13 12:04:46
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