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undergraduate thesis
Analiza potencijala za pasivno grijanje škole korištenjem izmjenjivača topline zemlja-zrak
Zagreb: University of Zagreb, Faculty of Mechanical Engineering and Naval Architecture, 2022. urn:nbn:hr:235:695507
Glogar, Filip
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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Glogar, F. (2022). Analiza potencijala za pasivno grijanje škole korištenjem izmjenjivača topline zemlja-zrak (Undergraduate thesis). Zagreb: University of Zagreb, Faculty of Mechanical Engineering and Naval Architecture. Retrieved from https://urn.nsk.hr/urn:nbn:hr:235:695507

Glogar, Filip. "Analiza potencijala za pasivno grijanje škole korištenjem izmjenjivača topline zemlja-zrak." Undergraduate thesis, University of Zagreb, Faculty of Mechanical Engineering and Naval Architecture, 2022. https://urn.nsk.hr/urn:nbn:hr:235:695507

Glogar, Filip. "Analiza potencijala za pasivno grijanje škole korištenjem izmjenjivača topline zemlja-zrak." Undergraduate thesis, University of Zagreb, Faculty of Mechanical Engineering and Naval Architecture, 2022. https://urn.nsk.hr/urn:nbn:hr:235:695507

Glogar, F. (2022). 'Analiza potencijala za pasivno grijanje škole korištenjem izmjenjivača topline zemlja-zrak', Undergraduate thesis, University of Zagreb, Faculty of Mechanical Engineering and Naval Architecture, accessed 09 October 2024, https://urn.nsk.hr/urn:nbn:hr:235:695507

Glogar F. Analiza potencijala za pasivno grijanje škole korištenjem izmjenjivača topline zemlja-zrak [Undergraduate thesis]. Zagreb: University of Zagreb, Faculty of Mechanical Engineering and Naval Architecture; 2022 [cited 2024 October 09] Available at: https://urn.nsk.hr/urn:nbn:hr:235:695507

F. Glogar, "Analiza potencijala za pasivno grijanje škole korištenjem izmjenjivača topline zemlja-zrak", Undergraduate thesis, University of Zagreb, Faculty of Mechanical Engineering and Naval Architecture, Zagreb, 2022. Available at: https://urn.nsk.hr/urn:nbn:hr:235:695507

Metadata
TitleAnaliza potencijala za pasivno grijanje škole korištenjem izmjenjivača topline zemlja-zrak
Title (english)Analysis of a passive heating potential for a school that uses an earth-air heat exchanger
AuthorFilip Glogar
MentorTea Žakula (mentor)
GranterUniversity of Zagreb
Faculty of Mechanical Engineering and Naval Architecture
Zagreb
Defense date and country2022-03-03, Croatia
Scientific / art field,
discipline and subdiscipline		TECHNICAL SCIENCES
Mechanical Engineering
Process Energy Engineering
Abstract
Potreba za energijom za grijanje čini veliki dio svjetskih potreba za energijom. Zbog navedenog se u sektoru zgradarstva sve češće primjenjuju sustavi pasivnog grijanja kojima se mogu postići značajne uštede energije. Svrha ovoga rada je analiza potencijala za pasivno grijanje Tehničke škole Ruđera Boškovića u Zagrebu korištenjem izmjenjivača topline zemlja-zrak za predgrijavanje ventilacijskoga zraka u sustavu mehaničke ventilacije. U radu je analizirana promjena temperature vanjskoga zraka prolaskom kroz izmjenjivač topline u svrhu izračuna godišnje uštede toplinske i električne energije. Analiza je provedena za svaki sat u godini, pri čemu je za analizu promjene temperature vanjskoga zraka korišten računalni program TRNSYS. Rezultati pokazuju da se najveće uštede toplinske i električne energije ostvaruju u najhladnijim mjesecima, u kojima je temperatura vanjskoga zraka osjetno niža od temperature tla koje okružuje izmjenjivač topline. U toplijim mjesecima dolazi do smanjenja uštede energije zbog viših temperatura vanjskoga zraka. Godišnja ušteda toplinske energije korištenjem analiziranog pasivnog sustava grijanja pomoću izmjenjivača topline zemlja-zrak iznosi 1804 kWh, odnosno 7,7%. Pod pretpostavkom da se toplinska energija dobiva pomoću dizalice topline zrak-voda, procijenjena je godišnja ušteda električne energije od oko 600 kWh, odnosno 600 kn.
Abstract (english)
Heating energy needs account for a large part of the world's energy needs. Hence, in the builing sector there is an increase in the use of passive heating systems, which can result in significant energy savings. The objective of this thesis is to analyze the potential for passive heating of the Ruđer Bošković Technical School in Zagreb using a ground-air heat exchanger. The exchanger is a part of a mechanical ventilation system and is used to preheat the outside air. In order to calculate the annual savings of heat and electricity, it is analyzed how the outdoor air temperature changes after passing through the heat exchanger. TRNSYS software has been used to calculate the change in outdoor air temperature on an hourly basis. The results show that the biggest savings of heat and electricity are achieved in the coldest months, when the outdoor air temperature is significantly lower than the ground temperature surrounding the heat exchanger. Energy savings are reduced in the warmer months due to higher outdoor air temperatures. The use of the analyzed passive heating system, with the ground-air heat exchanger, results in annual heat energy savings of 1804 kWh, or 7,7%. Under the assumption that the heat is produced using an air-to-water heat pump, estimated annual electricity savings are about 600 kWh, or 600 kn.
Keywords
Keywords (english)
Languagecroatian
URN:NBNurn:nbn:hr:235:695507
Study programmeTitle: Mechanical 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
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Created on2022-02-23 22:37:40