20.500.12556/DKUM-83705 Optimizacija geotermalne elektrarne v El Salvadorju z ozirom na termodinamiko in rudarjenje Bitcoina magistrsko delo Optimization of El Salvador geothermal power plant with respect to thermodynamics and Bitcoin mining V okviru magistrske naloge smo analizirali delovanje geotermalne elektrarne, natančneje uporabo organskega Rankinovega cikla za izkoriščenje geotermalne energije. Magistrska naloga je osnovana na realnem primeru geotermalne elektrarne v El Salvadorju. V magistrski nalogi smo zasnovali ORC sistem iz vidika termodinamike in s programom Matlab optimizirali maksimalni in minimalni tlak sistema ter njegovo maksimalno temperaturo. Poskušali smo najti najučinkovitejšo delovno tekočino, ki bo omogočila maksimalno učinkovitost sistema. Rezultate pridobljene s pomočjo Matlaba smo validirali s programoma Aspen Plus in DWSIM. Kot rezultat optimizacije in validacije smo ugotovili, da so najučinkovitejše delovne tekočine za zasnovo ORC sistema n-butan, R245fa in izobutan. Vse tri delovne tekočine so varne, imajo nizek potencial globalnega segrevanja in ničen potencial tanjšanja ozona. Povprečna učinkovitost ORC sistema, dobljena z njihovo uporabo, je znašala malo več kot 12 %. Hipotetični primer uporabe geotermalne elektrarne v El Salvadorju smo predpostavili z namenom rudarjenja kriptovalute Bitcoin. Za izračune smo ustvarili matematične funkcije predvidevanja cene in težavnosti rudarjenja do leta 2050. Ugotovili smo, da bi bil tovrsten projekt izvedljiv in profitabilen. As part of the master's thesis, we analyzed the operation of the geothermal power plant, more specifically the use of organic Rankin cycle system. The master's thesis is based on the real case of a geothermal power plant in El Salvador. ORC system was designed in terms of thermodynamics and optimized for the maximum and the minimum pressure alongside its maximum temperature. Optimization was carried out with Matlab program. Aim was to find the most effective working fluid that will result in the maximum efficiency of the system. Results obtained with the help of Matlab were validated with Aspen Plus and DWSIM programs. As a result of optimization and validation, it was found that the most effective working fluids are n-butane, R245fa and isobutane. All three working fluids are safe, have low global warming potential and zero ozone depletion potential. The average efficiency of the ORC system obtained by their use was just over 12%. Hypothetical example of using a geothermal power plant in El Salvador solely for the purpose of mining the Bitcoin cryptocurrency was proposed and analysed. For the calculations mathematical functions were created to predict the price and difficulty of mining until 2050. It was concluded that such a project would be feasible and profitable. Organski Rankinov cikel Geotermalna energija Optimizacija Matlab Bitcoin rudarjenje Bitcoina Organic Rankine cycle Geothermal energy Optimization Matlab Bitcoin Bitcoin mining true true false [A. Zidarič] Slovenski jezik Angleški jezik Magistrsko delo/naloga 2023-01-24 23:21:49 2023-02-16 07:46:53 2023-04-04 03:04:59 0000-00-00 00:00:00 2023 0 Maribor 0 Maribor 1 spletni vir (1 datoteka PDF (VII, 79 f.)) 0000-00-00 NiDoloceno NiDoloceno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 66.011:[621.311.24:622.997](043.2) 147488515 MAG_Zidaric_Andrej_2023.pdf MAG_Zidaric_Andrej_2023.pdf 1 E6AECF128812C4C7D4B599FDDC24C24B d8e05e21aaf1af84002eab62ac8d357ba08fe13dfa8e72bbc4aef191e9496640 ed5f53be-ad29-11ed-979d-00155d000105 https://dk.um.si/Dokument.php?lang=slv&id=165705 Fakulteta za kemijo in kemijsko tehnologijo 0 0 0