20.500.12556/RUL-137012 Modeliranje uplinjanja biomase Biomass gasification modeling Uplinjanje predstavlja obetavno tehnologijo pretvorbe biomase v visokokalorični plin, ki se lahko uporablja za ogrevanje, proizvodnjo elektrike ali kot osnova za proizvodnjo koristnih kemikalij. Zaradi zapletenosti procesa se je pojavila potreba po matematičnih modelih uplinjanja, ki simulirajo uplinjanje pri različnih vstopnih parametrih brez dragih in časovno zamudnih eksperimentov. V pričujočem magistrskem delu je predstavljen model uplinjanja biomase z uporabo termodinamičnega ravnovesja, ki podaja sestavo nastalega plina, njegovo kurilnost in izkoristek procesa na podlagi elementne analize biomase in temperature uplinjanja. Rezultate modela smo primerjali z eksperimentalno pridobljenimi rezultati iz literature in pokazali dobro ujemanje v sestavi sinteznega plina. Ugotovili smo, da obstaja optimalna temperatura uplinjanja, pri kateri dosežemo najvišji izkoristek procesa. Vlažnost biomase predstavlja problem pri uplinjanju, saj znižuje izkoristek in kurilnost plina. Ravno obratno velja za tlak v reaktorju, kjer se z višanjem izboljšata izkoristek in kurilnost. Gasification represents a promising technology for conversion of biomass into a high-calorie gas that can be used for heating, electricity generation or production of other useful chemicals. Due to the complexity of the process, there is a need for mathematical models that can predict the gasification products without expensive and time-consuming experiments. This paper presents a thermodynamic equilibrium model of biomass gasification, which predicts the composition of syngas, its lower heating value and process efficiency based on the composition of biomass and gasification temperature. The model results were compared with experimentally obtained data from literature and showed good agreement regarding the composition of the syngas. We found that there is an optimal gasification temperature at which we achieve the highest process efficiency. Moisture of biomass is a problem for gasification because it reduces the efficiency and calorific value of gas. The opposite is true for reactor pressure, which improves efficiency and calorific value as it rises. uplinjanje biomasa termodinamično ravnovesje sintezni plin modeliranje piroliza obnovljivi viri energije gasification biomass thermodynamic equilibrium syngas modeling pyrolysis renewable energy sources true false false [K. Pikš] Slovenski jezik Angleški jezik Magistrsko delo/naloga 2022-05-28 08:30:33 2022-05-28 08:30:37 2022-09-15 04:14:34 0000-00-00 00:00:00 2022 0 Ljubljana 0 XXVI, 66 str. 0000-00-00 NiDoloceno NiDoloceno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 662.63:620.92(043.2) 238174 109629699 14174.pdf 14174.pdf 1 B6F6EA0307964896DBE45356E94C57F9 5efabd640c7a9723d9f13ec72ec44e5e1baf1c7d08245b940f4809704dda33a3 8c559310-de4f-11ec-8aca-00155dcfd717 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=156856 Fakulteta za strojništvo 0 0 0