Utjecaj mjera energetske učinkovitosti i ugradnje razdjelnika topline na potrošnju toplinske energije u zgradarstvu u gradu Zagrebu

graduate thesis

• Title (english): The influence of energy efficiency measures and the installation of heat distributors on the heat consumption in buildings in the city of Zagreb
• Author: Tamara Marelja
• Mentor: Tomislav Gelo (mentor)
• Committee member: Tomislav Gelo (predsjednik povjerenstva)
• Committee member: Tomislav Sekur (član povjerenstva)
• Committee member: Jurica Šimurina (član povjerenstva)
• Granter: University of Zagreb; Faculty of Economics and Business; (Department of Macroeconomics and Economic Development); Zagreb
• Defense date and country: 2024-06-24, Croatia
• Scientific / art field, discipline and subdiscipline: SOCIAL SCIENCES; Economics

Abstract

Sustav toplinarstva predstavlja energetski model grijanja gdje se toplinska energija centralno proizvodi te potom distribuira krajnjim potrošačima putem cijevi. Većina takvih sustava u Europi razvijena je tokom 20. stoljeća te su značajno evoluirali od prvih generacija. Kod proizvodnje toplinske energije ističe se primjena kogeneracijskih postrojenja koje karakterizira istovremena proizvodnja električne i toplinske energija. Toplinska energija čini gotovo pola globalne finalne potrošnje energije, od čega se čak 44% troši u zgradama. Obzirom na to da su zgrade veliki potrošači energije općenito, njihova energetska učinkovitost od iznimne je važnosti. Problem starih zgrada koje imaju lošu energetsku učinkovitost prisutan je na području cijele Europske unije te je stoga povećanje energetske učinkovitosti postalo prioritet. Primjena mjera povećanja energetske učinkovitosti uključuje niz različitih područja mogućnosti uštede energije te poboljšava trajnost zgrada. Uz mjere energetske učinkovitosti u zgradarstvu kao što su poboljšanje toplinske ovojnice i stavljanje PVC stolarije, razdjelnici topline nameću se kao još jedan alat uštede energije. Obzirom na to da su razdjelnici topline u Hrvatskoj izazvali brojne rasprave, u ovom radu je pojašnjena njihova uloga, proces ugradnje, aspekt uštede energije, obračun toplinske energije i negativne strane. Također, kako bi se prikazali efekti mjera energetske učinkovitosti i razdjelnika topline, napravljena je studija slučaja o potrošnji toplinske energije koja je obuhvatila tri zgrade na području grada Zagreba koje su provele različite mjere energetske učinkovitosti. Rezultati su pokazali da je najveću uštedu toplinske energije ostvarila zgrada koja je ugradila razdjelnike topline te potom provela i energetsku obnovu.

Abstract (english)

Central heating system is an energy model of heating where heat energy is produced centrally and then distributed to consumers via pipes. Most of such systems in Europe were developed during the 20th century and have evolved significantly since the first generations. Use of cogeneration plants is highlighted in the production of heat energy. They are characterized by the simultaneous production of electrical and heat energy. Heat energy accounts for almost half of the global final energy consumption. 44% of that energy is consumed in buildings. Given that residential buildings are large consumers of energy in general, their energy efficiency is of utmost importance. The problem of old buildings with poor energy efficiency is present throughout the EU and therefore increasing the energy efficiency has become a priority. The application of measures to increase energy efficiency in buildings includes a number of different areas of energy saving opportunities and improves the durability of buildings. In addition to energy efficiency measures in buildings such as improving the thermal envelope and installing PVC joinery, heat distributors are emerging as another energy saving tool. Given that heat distributors in Croatia have caused numerous discussions, this paper explains their role, the installation process, the aspect of energy saving, cost calculation of heat energy and their negative sides. Also, in order to show the effects of energy efficiency measures and heat distributors, a case study was made on the consumption of heat energy in buildings. Case study included three buildings located in Zagreb that implemented different energy efficiency measures. The results showed that the biggest savings in heat energy were achieved by the building that installed heat distributors and then carried out energy renovation.

• Keywords: grijanje; razdjelnici topline; ušteda toplinske energije; energetska obnova; zgradarstvo
• Keywords (english): heating; heat distributors; saving thermal energy; energy renewal; building industry
• Language: croatian
• URN:NBN: urn:nbn:hr:148:905421
• Study programme: Title: Economics of energy and environment; Study programme type: professional; Study level: graduate; Academic / professional title: magistar ekonomije/magistra ekonomije (magistar ekonomije/magistra ekonomije)
• Type of resource: Text
• File origin: Born digital
• Access conditions: Open access
• Created on: 2024-06-24 11:50:13