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master's thesis
Eksperimentalni model prirodne ventilacije zgrade u urbanoj sredini
Zagreb: University of Zagreb, Faculty of Mechanical Engineering and Naval Architecture, 2018. urn:nbn:hr:235:996809
Golubić, Dino
University of Zagreb
Faculty of Mechanical Engineering and Naval Architecture

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

Cite this document

Golubić, D. (2018). Eksperimentalni model prirodne ventilacije zgrade u urbanoj sredini (Master's thesis). Zagreb: University of Zagreb, Faculty of Mechanical Engineering and Naval Architecture. Retrieved from https://urn.nsk.hr/urn:nbn:hr:235:996809

Golubić, Dino. "Eksperimentalni model prirodne ventilacije zgrade u urbanoj sredini." Master's thesis, University of Zagreb, Faculty of Mechanical Engineering and Naval Architecture, 2018. https://urn.nsk.hr/urn:nbn:hr:235:996809

Golubić, Dino. "Eksperimentalni model prirodne ventilacije zgrade u urbanoj sredini." Master's thesis, University of Zagreb, Faculty of Mechanical Engineering and Naval Architecture, 2018. https://urn.nsk.hr/urn:nbn:hr:235:996809

Golubić, D. (2018). 'Eksperimentalni model prirodne ventilacije zgrade u urbanoj sredini', Master's thesis, University of Zagreb, Faculty of Mechanical Engineering and Naval Architecture, accessed 20 December 2024, https://urn.nsk.hr/urn:nbn:hr:235:996809

Golubić D. Eksperimentalni model prirodne ventilacije zgrade u urbanoj sredini [Master's thesis]. Zagreb: University of Zagreb, Faculty of Mechanical Engineering and Naval Architecture; 2018 [cited 2024 December 20] Available at: https://urn.nsk.hr/urn:nbn:hr:235:996809

D. Golubić, "Eksperimentalni model prirodne ventilacije zgrade u urbanoj sredini", Master's thesis, University of Zagreb, Faculty of Mechanical Engineering and Naval Architecture, Zagreb, 2018. Available at: https://urn.nsk.hr/urn:nbn:hr:235:996809

Metadata
TitleEksperimentalni model prirodne ventilacije zgrade u urbanoj sredini
Title (english)Experimental model of building natural ventilation in urban environment
AuthorDino Golubić
MentorHrvoje Kozmar (mentor)
GranterUniversity of Zagreb
Faculty of Mechanical Engineering and Naval Architecture
Zagreb
Defense date and country2018-03-28, Croatia
Scientific / art field,
discipline and subdiscipline		TECHNICAL SCIENCES
Mechanical Engineering
Abstract
Prirodna ventilacija je proces izmjene zraka iz zgrada bez uporabe ventilacijskih uređaja, npr. koristeći količinu gibanja zraka i uzgonske sile. Pri izradi bioklimatskih zgrada visokih performansi veliki je naglasak na povećanju učinka prirodne ventilacije kako bi se smanjila potrošnja energije, poboljšala kvaliteta zraka te smanjila onečišćenja okoliša. Predmet ovog rada jest određivanje odnosa intenziteta ventilacije zgrade za samostojeću zgradu, kao i za zgradu smještenu u urbanom okruženju za različite stupnjeve izgrađenosti. Ispitivani su utjecaji poprečne i jednostrane ventilacije i smjera strujanja zraka. Izmjerene brzine ventilacije uspoređene su s rezultatima dobivenim za izoliranu referentnu zgradu. Eksperimenti su provedeni u zračnom tunelu za generiranje modela atmosferskog graničnog sloja na Institutu za mehaniku fluida i prijenos topline Tehničkog sveučilišta u Grazu, Austrija. Za određivanje karakteristika strujanja zraka je korišten sustav užarene žice, dok je sustav praćenja plina korišten za mjerenje broja izmjena zraka u prostoriji. Atmosferski granični sloj je uspješno modeliran za strujanje zraka iznad suburbanog tipa terena. Izmjena zraka za samostojeću zgradu je znanto efikasnija u odnosu na zgradu smještenu unutar urbanog okruženja. Za slučaj urbanog okruženja, efikasnost ventilacije zgrade je veća za slučaj rjeđe raspoređenih zgrada.
Abstract (english)
Natural ventilation is the process of air change in an indoor space without using mechanical devices, i.e by using simply natural forces like flow momentum and buoyancy. When designing bioclimatic, passive, high performance buildings, it is important to enhance natural ventilation in order to minimize energy consumption, improve air quality and reduce environmental pollution. The scope of the present work is on a sensitivity of ventilation rates for a building, which is a part of an urban neighborhood. The cross-ventilation and single-side ventilation for various flow incidence angles were studied. Measured ventilation rates were compared to the reference results that were obtained for a referent stand-alone cubic building model. The experiments were carried out in the atmospheric boundary layer wind tunnel at the Institute of Fluid Mechanics and Heat Transfer (IFMHT) at the Graz University of Technology (GUT), Austria. The hot-wire anemometry was used to determine flow characteristics, while the tracer gas system was applied to estimate airflow rates of the cubic building model. The atmospheric boundary layer was successfully simulated for a suburban terrain exposure. The airflow rates obtained for a ventilation of a stand-alone cubic building model were observed to be larger when compared to a cubic building model situated in an urban neighborhood model. In the latter case, the ventilation efficiency is larger for less densely spaced building models.
Keywords
Keywords (english)
Languageenglish
URN:NBNurn:nbn:hr:235:996809
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
Embargo expiration date: 2020-03-28
Terms of useLicence In copyright icon
Created on2019-05-22 22:18:25