20.500.12556/RUL-186030 Energetska obnova starejše stanovanjske hiše z uporabo sodobnih metod Energy renovation of an old residential house using modern methods Starejše stanovanjske hiše predstavljajo pomemben del slovenskega stavbnega fonda in pogosto ne dosegajo sodobnih zahtev glede učinkovite rabe energije. V diplomskem delu je bila obravnavana starejša stanovanjska hiša v Ljubljani, za katero je bilo s programom URSA Gradbena fizika analizirano obstoječe energijsko stanje. Na podlagi rezultatov so bile obravnavane tri sanacijske variante: toplotna sanacija fasade in strehe, vgradnja toplotne črpalke zrak–voda ter vgradnja fotovoltaičnega sistema. Rezultati so pokazali, da stavba v obstoječem stanju ne izpolnjuje zahtev glede koeficienta specifičnih transmisijskih toplotnih izgub in letne potrebne toplote za ogrevanje. Izračunani koeficient H′$_{T}$ znaša 0,546 W/(m²·K), letna potrebna toplota za ogrevanje pa 102,32 kWh/(m²·a). Največji tehnični učinek ima toplotna sanacija ovoja, saj bi se skupne toplotne izgube zmanjšale z 248,52 W/K na 130,12 W/K. Ekonomska primerjava je pokazala, da ima najkrajšo enostavno vračilno dobo fotovoltaični sistem, in sicer 16,1 leta. Ugotovljeno je bilo, da je za celovito energetsko prenovo smiselna kombinacija zmanjšanja toplotnih izgub in lastne proizvodnje električne energije. Older residential houses represent an important part of the Slovenian building stock and often do not meet current energy efficiency requirements. This thesis analyses an older residential house in Ljubljana using the URSA Building Physics software. Based on the calculated existing energy performance, three renovation variants were evaluated: thermal renovation of the facade and roof, installation of an air-to-water heat pump, and installation of a photovoltaic system. The results showed that the existing building does not meet the requirements regarding the specific transmission heat loss coefficient and annual heating demand. The calculated value of H′$_{T}$ is 0.546 W/(m²·K), while the annual heating demand is 102.32 kWh/(m²·a). The greatest technical effect was achieved by the renovation of the building envelope, reducing total heat losses from 248.52 W/K to 130.12 W/K. The economic comparison showed that the photovoltaic system has the shortest simple payback period, namely 16.1 years. The analysis indicates that a combination of reducing heat losses and producing electricity on site would be the most meaningful approach for a comprehensive energy renovation. energetske sanacije stanovanjski objekti ukrepi energetske učinkovitosti toplotne izgube obnovljivi viri energije stroškovne analize energy renovations residential buildings energy efficiency measures heat losses renewable energy sources cost analyses true false false [T. Gogala] Slovenski jezik Angleški jezik Diplomsko delo/naloga 2026-08-26 08:31:42 2026-08-26 08:31:48 2026-08-27 15:08:33 0000-00-00 00:00:00 2026 0 Ljubljana 0 XXII, 61 str., 2 str. pril. 0000-00-00 NiDoloceno NiDoloceno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 699.86:728.1(043.2) 288349 289156355 48527.pdf 48527.pdf 1 384AB0BF8D5048E8EC9543CD50190424 9ddae496f923c718b7996f06bfe21f99e94a2c39df13ca1af25f181c6ed396b4 6806b7ed-a117-11f1-9b0d-0050569b8976 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=245074 48528.pdf 48528.pdf 1 81600C79A2B3CB75C81F57CAE2351777 d695b7543ea2112fdb52c4280569e7142a10593adbbf990b01724b3097145ebc 6827dfe4-a117-11f1-9b0d-0050569b8976 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=245075 Fakulteta za strojništvo 0 0 0