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undergraduate thesis
Eksperimentalna analiza slobodne konvekcije iznad čovjeka
Zagreb: University of Zagreb, Faculty of Mechanical Engineering and Naval Architecture, 2023. urn:nbn:hr:235:421066
Špiljar, Dora Helena
University of Zagreb
Faculty of Mechanical Engineering and Naval Architecture

Institutional repository: Repository of Faculty of Mechanical Engineering and Naval Architecture University of Zagreb

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Špiljar, D. H. (2023). Eksperimentalna analiza slobodne konvekcije iznad čovjeka (Undergraduate thesis). Zagreb: University of Zagreb, Faculty of Mechanical Engineering and Naval Architecture. Retrieved from https://urn.nsk.hr/urn:nbn:hr:235:421066

Špiljar, Dora Helena. "Eksperimentalna analiza slobodne konvekcije iznad čovjeka." Undergraduate thesis, University of Zagreb, Faculty of Mechanical Engineering and Naval Architecture, 2023. https://urn.nsk.hr/urn:nbn:hr:235:421066

Špiljar, Dora Helena. "Eksperimentalna analiza slobodne konvekcije iznad čovjeka." Undergraduate thesis, University of Zagreb, Faculty of Mechanical Engineering and Naval Architecture, 2023. https://urn.nsk.hr/urn:nbn:hr:235:421066

Špiljar, D. H. (2023). 'Eksperimentalna analiza slobodne konvekcije iznad čovjeka', Undergraduate thesis, University of Zagreb, Faculty of Mechanical Engineering and Naval Architecture, accessed 12 November 2024, https://urn.nsk.hr/urn:nbn:hr:235:421066

Špiljar DH. Eksperimentalna analiza slobodne konvekcije iznad čovjeka [Undergraduate thesis]. Zagreb: University of Zagreb, Faculty of Mechanical Engineering and Naval Architecture; 2023 [cited 2024 November 12] Available at: https://urn.nsk.hr/urn:nbn:hr:235:421066

D. H. Špiljar, "Eksperimentalna analiza slobodne konvekcije iznad čovjeka", Undergraduate thesis, University of Zagreb, Faculty of Mechanical Engineering and Naval Architecture, Zagreb, 2023. Available at: https://urn.nsk.hr/urn:nbn:hr:235:421066

Metadata
TitleEksperimentalna analiza slobodne konvekcije iznad čovjeka
Title (english)Experimental analysis of human thermal plume
AuthorDora Helena Špiljar
MentorTea Žakula (mentor)
GranterUniversity of Zagreb
Faculty of Mechanical Engineering and Naval Architecture
Zagreb
Defense date and country2023-03, Croatia
Scientific / art field,
discipline and subdiscipline		TECHNICAL SCIENCES
Mechanical Engineering
Abstract
Čovjek svojim metabolizmom generira toplinski tok uslijed kojeg nastaje uzgonsko gibanje zraka (eng. thermal plume), a koje utječe na raspodjelu temperature i strujanje zraka u zatvorenom prostoru. Ovaj se efekt najčešće analizira računalnim metodama, dok se točnost simulacijskih modela može ocijeniti usporedbom s eksperimentalnim mjerenjima. Svrha ovog rada je provesti eksperimentalno mjerenje u prostoriji na Fakultetu strojarstva i brodogradnje u Zagrebu koristeći pojednostavljene modele čovjeka, te usporediti dobivene rezultate s rezultatima CFD analize provedene u projektu „Regionalni centar kompetentnosti Ruđera Boškovića“. Pri tome je temperaturna stratifikacija iznad modela čovjeka ključan parametar za usporedbu rezultata mjerenja s računalnim simulacijama. Najviša temperatura izmjerena je neposredno iznad modela (oko 27°C), a uočen je i ustaljen temperaturni gradijent. Također je utvrđeno da se najveća temperaturna razlika između rezultata mjerenja i simulacije pojavljuje uz sami model i iznosi 2°C, dok je na ostalim lokacijama mjerenja razlika temperatura zanemariva. U zaključku, usporedbom rezultata mjerenja s rezultatima CFD simulacije zaključeno je da korišteni pojednostavljeni model čovjeka daje rezultate prihvatljive točnosti te da se može koristiti za daljnja eksperimentalna mjerenja.
Abstract (english)
Human metabolism generates a heat flow that creates a thermal plume, which then affects the temperature distribution and air flow in a closed space. A variety of computer programs are used to analyze the effects, while simulation models can be validated using experimental measurements. The goal of this work is to conduct an experiment in a room at the Faculty of Mechanical Engineering and Naval Architecture in Zagreb using simplified human models, and to compare the obtained results with the results of the CFD analysis carried out in the project "Regional Competence Center Ruđer Bošković". The key parameter for the comparison of the experimental results with the simulation results was the temperature stratification above the human model. The highest temperature in the experiment was measured directly above the model (around 27°C). Also, there was a notable temperature gradient above the model. The biggest temperature difference between the measured and simulated results was closest to the model and is equal to 2°C. On other locations the temperature difference was negligible. By comparing the results of the experiment and CFD simulation, it was concluded that using simplified human models in the experiment gives results of acceptable accuracy and that the models can be used for further experimental measurements
Keywords
Keywords (english)
Languagecroatian
URN:NBNurn:nbn:hr:235:421066
Study programmeTitle: Mechanical Engineering; specializations in: Design, Process and Energy Engineering, Production Engineering, Engineering Modelling and Computer Simulation, Marine Engineering, Industrial Engineering and Management, Materials Engineering
Course: Process and Energy Engineering
Study programme type: university
Study level: undergraduate
Academic / professional title: sveučilišni/a prvostupnik/ prvostupnica (baccalaureus/baccalaurea) inženjer/inženjerka strojarstva (sveučilišni/a prvostupnik/ prvostupnica (baccalaureus/baccalaurea) inženjer/inženjerka strojarstva)
Type of resourceText
File originBorn digital
Access conditionsOpen access
Terms of useLicence In copyright icon
Created on2023-02-28 09:30:21