20.500.12556/DKUM-83026 Okoljska analiza organskega rankinovega cikla za proizvodnjo električne energije iz industrijske odpadne toplote diplomsko delo visokošolskega strokovnega študijskega programa I. stopnje Environmental analysis of the organic rankine cycle for electricity production from industrial waste heat V diplomskem delu smo ocenili okoljski vpliv ORC elektrarne, ki uporablja odpadno toploto iz proizvodnje aluminija in predlaga različne scenarije, v smislu trajnostne in konvencionalne proizvodnje električne energije. Za analizo smo podatke o energijskih bilancah ter učinkovitosti sistema glede na termodinamične in ekonomske cilje pridobili iz simulacij v programski opremi Aspen Plus in optimizirani v programu GAMS za tri delovne tekočine (R245fa, R1234yf in R1234ze) po članku [1]. Ob upoštevanju vseh ustreznih vhodov in izhodov procesa, same proizvodnje komponent in vpliv delovnih tekočin, v njegovi življenjski dobi, se okoljski vpliv sistema analizira s programsko opremo OpenLCA z integriranimi zbirkami podatkov. Primerjali smo med tremi električnimi mešanicami (Slovenski električni mix, Evropski povprečni električni mix in COP26 mešanica obnovljivih virov električne energije). Dobljeni rezultati primerjalno kažejo, kateri predlagani scenariji bi bolj razbremenili okolje. Uporaba ORC namesto mešanice električne energije v EU bo imela največji vpliv na okoljsko razbremenitev, sledita ji Slovenska in nato mešanica COP26, kar je pričakovano. The diploma thesis assess the environmental impact of ORC power plants using waste heat from the aluminium production process by presenting different scenarios in terms of the production of sustainable and conventional electricity production. The energy balances and the performance of the system as determined by thermodynamic and economic objectives are derived from simulations carried out in Aspen Plus software and optimised in GAMS for three working fluids (R245fa, R1234yf, and R1234ze) according to paper[1]. The environmental impact of a process is assessed by using OpenLCA software with integrated databases after considering all relevant inputs and outputs, production of ORC components themselves and the impact of refrigerants, during its lifetime have also been taken into account. Comparisons have been made between three electricity mixes (Slovenian electricity mix, European average electricity mix and COP26 renewable electricity mix). The results obtained show comparatively which of the proposed scenarios would be more environmentally friendly. The use of ORC instead of the EU electricity mix will have the highest impact on environmental relief, followed by the Slovenian mix and then the COP26 mix, which is expected. Okoljska analiza organski Rankinov cikel odpadna toplota obnovljivi viri energije proizvodnja aluminija Environmental analysis organic Rankine cycle waste heat renewable energy aluminium production true true false [G. Strajnar] Slovenski jezik Angleški jezik Diplomsko delo/naloga 2022-09-13 19:02:23 2022-10-11 14:52:05 2022-12-02 03:10:08 0000-00-00 00:00:00 2022 0 Maribor 0 Maribor 1 spletni vir (1 datoteka PDF (IX, 29 f.)) 0000-00-00 NiDoloceno NiDoloceno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 502.174:620.97(043.2) 131917827 VS_Strajnar_Gaja_2022.pdf VS_Strajnar_Gaja_2022.pdf 1 4C21FD1C9B058FB819C885E7C2C9AC40 56b03f2b3264685be517633fa94e3d5a7bbf48f89aff92559226410c970a719b e1853ab8-495b-11ed-bd5b-00155d000105 https://dk.um.si/Dokument.php?lang=slv&id=163878 Fakulteta za kemijo in kemijsko tehnologijo 0 0 0