Zgrade gotovo nulte energije - kalkulator isplativosti investicije u cjeovitu energetsku obnovu

undergraduate thesis

• Title (english): Near-zero energy buildings - deep energy renovation feasibility calculator
• Author: Matej Stipeljković
• Mentor: Neven Duić (mentor)
• Granter: University of Zagreb; Faculty of Mechanical Engineering and Naval Architecture; Zagreb
• Defense date and country: 2017-09-28, Croatia
• Scientific / art field, discipline and subdiscipline: TECHNICAL SCIENCES; Mechanical Engineering

Abstract

Uslijed sve većeg broja zgrada gotovo nulte energije (NZEB, engl. near zero energy building), pojavila se potreba za alatima koji će omogućiti odabir ekonomski isplativih mjera kako bi određena zgrada zadovoljila NZEB kriterije. U radu je prikazana metoda i postupak optimizacije odabira mjera energetske učinkovitosti, a kao primjer je odabrano dvadeset zgrada javnog sektora Zagrebačke županije. Postupak se temelji na optimalnom odabiru mjera energetske učinkovitosti, gdje je funkcija cilja minimalizirati jednostavni period povrata (JPP) ili ukupnu investiciju, pri čemu je potrebno ostvariti NZEB krierije. Cilj je troškovno-optimalno obnoviti zgrade pomoću programa Baza mjera energetske učinkovitosti (BMEU) koji je napravljen u suradnji s Regionalnom energetskom agencijom sjeverozapadne Hrvatske (REGEA). Rezultat je pokazao kako se od 20 promatranih zgrada, samo 10% može dovesti do razine NZEB pomoću metoda koje se u praksi koriste. Za ostalih 90% je potrebno koristiti mjere učinkovitosti koje se u stvarnosti pokazuju neisplativima. Za potrebe proračuna je korišten Microsoft Office Excel, odnosno optimizacijski alat SOLVER.

Abstract (english)

Due to the growing number of nearly zero energy buildings (NZEBs), a need for tools that will enable economically viable energy efficiency measures has emerged. This thesis presents the method and process of optimizing the selection of energy efficiency measures, and as an example, several public buildings of the Zagreb County have been selected. Optimization is based on the selection of energy efficiency measures, where the goal is to minimize a simple payback period or a total investment. The goal is to find the cost-optimal solution of building renovation measures by using the program named Energy efficiency measures base (BMEU), developed in cooperation with North-west Croatia regional energy agency (REGEA). The result has shown that only 10% of the 20 observed buildings can be renovated to the NZEB level by using the well-known energy efficiency measures . For other 90% of the buildings, it is necessary to use the measures which in reality have been shown economically unfeasible. Microsoft Office Excel and SOLVER optimization tool have been used for calculation and optimization processes.

• Keywords: energetska obnova; zgrade gotovo nulte energije; racionalna upotreba energije; obnovljivi izvori energije
• Keywords (english): building retrofit; near zero energy building; rational use of energy; renewable energy sources
• Language: croatian
• URN:NBN: urn:nbn:hr:235:112309
• Study programme: Title: 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 resource: Text
• File origin: Born digital
• Access conditions: Open access
• Created on: 2019-05-22 20:20:26