20.500.12556/RUL-186774 Analiza možnosti dogrevanja vtočnega zraka pri prezračevanju športne dvorane Analysis of supply air heating systems in sports hall ventilation V diplomskem delu smo obravnavali dogrevanje vtočnega zraka pri prezračevanju športne dvorane in izvedli primerjavo treh sistemov dogrevanja z energetskega in ekonomskega vidika. Kot referenčni objekt smo obravnavali večnamensko športno dvorano Srednje šole Krško. Z uporabo računalniškega programa smo izračunali letno potrebno toploto za dogrevanje vtočnega zraka, pri čemer program upošteva urno spreminjanje zunanje temperature in urnik obratovanja prezračevalnega sistema. V primerjavo smo vključili toplotno črpalko zrak–voda, plinsko peč ter kaskadno vezavo treh električnih peči. Sisteme smo primerjali glede na letno rabo energije, letne obratovalne stroške in investicijske stroške, izračunali pa smo tudi skupne stroške v obdobju 15 let ter dobo vračila investicije. Rezultati primerjave so pokazali, da sistem s toplotno črpalko zrak–voda kljub najvišji začetni investiciji dolgoročno predstavlja najbolj ekonomično rešitev za obravnavani objekt. In the diploma thesis, we investigated the supply air heating in the ventilation of a sports hall and performed a comparison of three heating systems from an energy and economic perspective. The multi-purpose sports hall of the Krško Secondary School was considered as the reference building. Using a computer program, we calculated the annual heat demand for supply air heating, whereby the program takes into account the hourly variation of outdoor temperature and the operating schedule of the ventilation system. The comparison included an air–to–water heat pump, a gas boiler and a cascade connection of three electric boilers. The systems were compared in terms of annual energy consumption, annual operating costs and investment costs, while the total costs over a 15-year period and the investment payback period were also calculated. The results of the comparison have shown that the air–to–water heat pump system, despite the highest initial investment cost, represents the most economical long-term solution for the reference building. prezračevanje dogrevanje vtočnega zraka izkoriščanje zavržene toplote toplotne črpalke zrak–voda plinske peči električne peči ekonomska analiza ventilation supply air heating waste heat recovery air–to–water heat pumps gas boilers electric boilers economic analysis true false false [N. Cehte] Slovenski jezik Angleški jezik Diplomsko delo/naloga 2026-09-05 08:30:25 2026-09-05 08:30:31 2026-09-07 10:59:05 0000-00-00 00:00:00 2026 0 Ljubljana 0 XXII, 67 str. 0000-00-00 NiDoloceno NiDoloceno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 697.978:621.57:336.532.1(043.2) 289370 290182659 48992.pdf 48992.pdf 1 E60EE926F749C6B6BB5AC4E10D639BCE e8545ff817dd379a42fcaad51c5795e6665510f2cd92ea06a26ab5bbafd05b34 4b6aea4e-a8f3-11f1-8bc5-0050569b8976 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=246145 Fakulteta za strojništvo 0 0 0