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Title:Investigation of the potential of waste gasification systems in achieving sustainable waste management practices and exploring their potential to contribute to the circular economy : master's thesis
Authors:ID Korać, Anđela (Author)
ID Šetinc, Marko (Mentor) More about this mentor... New window
Files:.pdf Andela_Korac.pdf (2,16 MB)
MD5: 42F54906DFD23EF57A8AB8F78E8CAF9C
 
Language:English
Work type:Master's thesis/paper
Typology:2.09 - Master's Thesis
Organization:FZO - Faculty of Environmental Sciences
Abstract:Waste management is a global problem, as waste production continues to rise, and the methods used today, such as landfilling and incineration, can cause many environmental issues. Waste gasification, among other technologies, is a promising alternative since waste is turned into useful energy resources and reduces emissions with the formation of syngas. Thus, this thesis investigated the potential of waste gasification systems in sustainable waste management and circular economy. Focusing on its energy and economic potential, modeling methods were used to recreate real-world systems, with the goal of properly estimating the true sustainability potential of the waste gasification systems. Biomass gasification was evaluated through thorough thermodynamics and economic analysis. Although the initial calculations failed to provide positive results by showing the energy of 54 MJ, instead of the expected energy release, further analysis with the optimized conditions and different assumptions, provided more accurate results. By increasing the share of oxidized CO from 10% to 25%, and reducing the wet material from 35% to 10%, total released heat was estimated to be −148.9 MJ. With the right assumptions, the gasification process was proved to provide good energy values necessary for the sustainability of such a process. Additionally, the financial analysis produced a high Net Present Value (NPV) of EUR 3,434,411.46, Internal Rate of Return (IRR) of 21.81%, and a short payback period (PP) of 4.48 years, hence proving the strong economic potential and financial strength of such technology. Therefore, biomass waste gasification was concluded to be a positive investment opportunity with valuable long-term economic benefits, while still providing good energy balance.
Keywords:waste, gasification, energy, circular economy, emission
Place of publishing:Nova Gorica
Place of performance:Nova Gorica
Publisher:A. Korać
Year of publishing:2024
Year of performance:2024
Number of pages:XIV, 61 str.
PID:20.500.12556/RUNG-9395 New window
COBISS.SI-ID:219644419 New window
UDC:628.4
NUK URN:URN:SI:UNG:REP:F7QP7UQI
Publication date in RUNG:18.12.2024
Views:209
Downloads:1
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Licences

License:CC BY-NC-ND 4.0, Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International
Link:http://creativecommons.org/licenses/by-nc-nd/4.0/
Description:The most restrictive Creative Commons license. This only allows people to download and share the work for no commercial gain and for no other purposes.
Licensing start date:08.10.2024

Secondary language

Language:Slovenian
Title:Raziskava potenciala sistemov za uplinjanje odpadkov pri doseganju praks trajnostnega ravnanja z odpadki in raziskovanje njihovega potenciala za prispevanje h krožnemu gospodarstvu
Abstract:Ravnanje z odpadki je svetovni problem, saj proizvodnja odpadkov še naprej narašča, metode, ki se danes uporabljajo, kot sta odlaganje in sežiganje, pa lahko povzročijo številne okoljske težave. Uplinjanje odpadkov je med drugimi tehnologijami obetavna alternativa, saj se odpadki spremenijo v uporabne vire energije in zmanjšajo emisije s tvorbo sintetičnega plina. Tako je diplomsko delo raziskovalo potencial sistemov za uplinjanje odpadkov v trajnostnem ravnanju z odpadki in krožnem gospodarstvu. Z osredotočanjem na njegov energetski in gospodarski potencial so bile uporabljene metode modeliranja za ponovno ustvarjanje sistemov v resničnem svetu, s ciljem pravilne ocene resničnega trajnostnega potenciala sistemov za uplinjanje odpadkov. Uplinjanje biomase je bilo ovrednoteno s temeljito termodinamično in ekonomsko analizo. Čeprav začetni izračuni niso dali pozitivnih rezultatov s prikazom energije 54 MJ, je nadaljnja analiza z optimiziranimi pogoji in drugačnimi predpostavkami dala natančnejše rezultate namesto pričakovanega sproščanja energije. S povečanjem deleža oksidiranega CO z 10% na 25% in zmanjšanjem mokrega materiala s 35% na 10% je bila skupna sproščena toplota ocenjena na −148.9 MJ. S pravimi predpostavkami je dokazano, da proces uplinjanja zagotavlja dobre energijske vrednosti, ki so potrebne za trajnost takega procesa. Poleg tega je finančna analiza ustvarila visoko neto sedanjo vrednost (NPV) v višini 3,434,411.46 EUR, notranjo stopnjo donosa (IRR) pri 21.81% in kratko vračilno dobo (PP) v višini 4.48 let, kar dokazuje močan gospodarski potencial in finančno moč. take tehnologije. Zato je bilo ugotovljeno, da je uplinjanje odpadkov iz biomase pozitivna naložbena priložnost z dragocenimi dolgoročnimi gospodarskimi koristmi, hkrati pa še vedno zagotavlja dobro energetsko bilanco.
Keywords:odpadki, uplinjanje, energija, krožno gospodarstvo, emisije, magistrske naloge


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