Elektrolizer v trajnostnem energetskem sistemu

zaključna naloga Univerzitetnega študijskega programa I. stopnje Strojništvo - Razvojno raziskovalni program

Marko Kovačević (Author), Mitja Mori (Mentor)

Abstract

V zaključni nalogi smo analizirali delovanje elektrolizerja s protonsko izmenjevalno membrano (PEMEC) in njegovo integracijo v trajnostni sistem. Naše eksperimentalno delo je zajemalo meritev polarizacijske krivulje elektrolizerja ob različnem številu fotovoltaičnih panelov kot viru električne energije, za referenco pa smo uporabili tudi baterije. Dobljene polarizacijske krivulje niso popolnoma v skladu s pričakovanji in teorijo, so pa pokazale, da elektroliza poteče pri napetosti 1,48V in da večja moč vira vodi tudi v večjo moč elektrolizerja. Definirali smo še dnevni profil proizvodnje električne energije na PEM gorivni celici, ki narekuje porabo vodika oziroma njegovo proizvodnjo na PEMEC. Rezultati so pokazali, da bi za pokrivanje potreb po vodiku, potrebovali več kot 4 panele na elektrolizer. Pokazali so tudi, da bi proizvedli bistveno več vodika (44%) če bi na 2 PEMEC priključili 2 panela, kot pa če na 1 PEMEC priključimo 4 panele.

Keywords

PEM elektrolizer;vodik;obnovljivi viri energije;trajnostni energetski sistem;elektroliza;

Data

Language:	Slovenian
Year of publishing:	2024
Typology:	2.11 - Undergraduate Thesis
Organization:	UL FS - Faculty of Mechanical Engineering
Publisher:	[M. Kovačević]
UDC:	620.91:502.131.1:544.642.076.2(043.2)
COBISS:	203001347
Views:	88
Downloads:	18
Average score:	0 (0 votes)
Metadata:

Other data

Secondary language:	English
Secondary title:	Electrolyser in a sustainable energy system
Secondary abstract:	In the final thesis, we analyzed the performance of a proton exchange membrane electrolyzer (PEMEC) and its integration into a sustainable system. Our experimental work included measuring the polarization curve of the electrolyzer with a varying number of photovoltaic panels as the power source, with batteries used as a reference. The obtained polarization curves did not fully align with expectations and theory, but they did show that electrolysis occurs at a voltage of 1.48V and that a higher power source leads to greater power output from the electrolyzer. We also defined the daily profile of electricity production on the PEM fuel cell, which dictates hydrogen consumption or its production on the PEMEC. The results indicated that to meet the hydrogen demand, more than four panels per electrolyzer would be needed. They also showed that significantly more hydrogen (44%) would be produced if two panels were connected to two PEMECs, compared to connecting four panels to one PEMEC.
Secondary keywords:	PEM electrolyzer;hydrogen;renewable energy sources;sustainable energy system;electrolysis;
Type (COBISS):	Final paper
Study programme:	0
Embargo end date (OpenAIRE):	1970-01-01
Thesis comment:	Univ. v Ljubljani, Fak. za strojništvo
Pages:	XI, 38 f.
ID:	24518459