20.500.12556/RUL-182037 Modeliranje in analiza shranjevanja industrijske odpadne toplote v podzemnem hranilniku toplote Modeling and analysis of industrial waste heat storage in an underground thermal energy storage system Naraščajoče potrebe po energiji in zahteve po zmanjševanju emisij toplogrednih plinov spodbujajo razvoj učinkovitih rešitev za izrabo obnovljivih virov in odpadne toplote v industriji. V magistrskem delu smo analizirali sistem za shranjevanje toplotne energije, ki vključuje sončne sprejemnike, podzemni TTES hranilnik toplote ter dodatni vir za pokrivanje potreb industrijskega porabnika. Razvili smo numerični simulacijski model v programskem okolju TRNSYS ter izvedli parametrično analizo vpliva površine sončnih sprejemnikov in volumna hranilnika na delovanje sistema. V analizo smo vključili tudi možnost izrabe industrijske odpadne toplote, pri čemer smo ugotovili, da zaradi prenizkega temperaturnega nivoja v obravnavanem primeru njena uporaba ni primerna. Rezultati kažejo, da povečanje površine sončnih sprejemnikov z 300 m² na 600 m² zmanjša delež delovanja dodatnega vira z 76 % na 21 %, medtem ko nadaljnje povečanje nad 1000 m² prinaša manjše dodatne učinke zaradi zmanjševanja energijskega izkoristka sistema. Povečanje volumna hranilnika na območje 300–500 m³ bistveno izboljša izrabo sončne energije, večji volumni pa imajo omejen vpliv. Optimalno območje dimenzioniranja sistema je med 800–1200 m² sončnih sprejemnikov in 300–500 m³ hranilnika, kjer se delež dodatnega vira zmanjša na 3–8 %. Ugotovili smo, da sistem omogoča visoko energetsko učinkovitost in skoraj popolno pokritje potreb po toploti z obnovljivimi viri. Increasing energy demand and the need to reduce greenhouse gas emissions drive the development of efficient solutions for the utilization of renewable energy sources and waste heat in industry. In this thesis, a thermal energy storage system consisting of solar collectors, an underground TTES storage and an auxiliary heat source for covering the demand of an industrial consumer was analyzed. A numerical simulation model was developed in the TRNSYS environment and a parametric analysis of the influence of collector area and storage volume on system performance was carried out. The potential use of industrial waste heat was also considered; however, it was found that due to its insufficient temperature level, it was not suitable for the analyzed case. The results show that increasing the collector area from 300 m² to 600 m² reduces the share of auxiliary energy from 76% to 21%, while further increase beyond 1000 m² results in smaller additional effects due to reduced system efficiency. Increasing the storage volume to the range of 300–500 m³ significantly improves solar energy utilization, while larger volumes have a limited impact. The optimal system configuration is within 800–1200 m² of collector area and 300–500 m³ of storage volume, where the auxiliary energy share is reduced to 3–8%. It was found that the system enables high energy efficiency and near-complete coverage of heat demand using renewable energy sources. hranilnik toplote podzemni hranilniki toplote sprejemniki sončne energije industrijski procesi industrijska odpadna toplota trnsys simulacije thermal storage tank underground thermal energy storage (UTES) solar collectors industrial processes industrial waste heat TRNSYS simulations true false false [G. Brunskole] Slovenski jezik Angleški jezik Magistrsko delo/naloga 2026-04-23 08:30:44 2026-04-23 08:30:52 2026-05-05 10:30:51 0000-00-00 00:00:00 2026 0 Ljubljana 0 XXII, 73 str. 0000-00-00 NiDoloceno NiDoloceno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 536:697.329:338.45(043.2) 285537 277035267 46814.pdf 46814.pdf 1 1D4ED8CB39124F243C48FE08E6C4B855 f5733742a5396914b61d41a8d78d69b74393c307e41d6ad5412cfab8951f195b b9fee96f-3edd-11f1-b0ab-0050569b8976 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=232955 Fakulteta za strojništvo 0 0 0