The influence of degradation effects in proton exchange membrane fuel cells on life cycle assessment modelling and environmental impact indicators

Stropnik, Rok (avtor), Mlakar, Nejc (avtor), Lotrič, Andrej (avtor), Sekavčnik, Mihael (avtor), Mori, Mitja (avtor)

Although proton exchange membrane fuel cell (PEMFC) systems are expected to have lower environmental impacts in the operational phase, compared to conventional energy conversion systems, there are still certain economic, operational, and environmental setbacks. Durability under a wide range of operating conditions presents a challenge because degradation processes affect the PEMFC efficiency. Typically, life cycle assessment (LCA) of PEMFC systems do not include performance degradation. Thus, a novel semi-empirical PEMFC model is developed, which includes degradation effects caused by different operational regimes (dynamic and steady-state). The model is integrated into LCA through life cycle inventory (LCI) to achieve a more realistic and accurate evaluation of environmental impacts. Verification of the model clearly showed that the use of existing LCI models underestimates the environmental impacts. This is especially evident when green hydrogen is used in PEMFC operational phase, where manufacturing phase and maintenance (stack replacements) become more influential. Input parameters of the model can be modified to reflect technological improvements (e.g. platinum loading or durability) and evaluate the effects of future scenarios.

• Jezik: Angleški jezik
• Ključne besede: fuel cells, proton exchange membrane, life cycle assessment, life cycle inventory model, degradation, operational regime, environmental impacts, proton exchange membrane fuel cell
• Vrsta gradiva: Članek v reviji
• Tipologija: 1.01 - Izvirni znanstveni članek
• Organizacija: FS - Fakulteta za strojništvo
• Status publikacije: Objavljeno
• Različica publikacije: Objavljena publikacija
• Leto izida: 2022
• Št. strani: 19 str.
• Številčenje: Vol. 47, iss. 57
• PID: 20.500.12556/RUL-139081
• UDK: 621.352.6:502.171
• ISSN pri članku: 0360-3199
• DOI: 10.1016/j.ijhydene.2022.04.011
• COBISS.SI-ID: 105811203
• Datum objave v RUL: 30.08.2022

Gradivo je del revije

• Naslov: International journal of hydrogen energy
• Skrajšan naslov: Int. j. hydrogen energy
• Založnik: Elsevier, Hydrogen Energy Publications LLC
• ISSN: 0360-3199
• COBISS.SI-ID: 3338511

Licence

• Licenca: CC BY 4.0, Creative Commons Priznanje avtorstva 4.0 Mednarodna
• Povezava: http://creativecommons.org/licenses/by/4.0/deed.sl
• Opis: To je standardna licenca Creative Commons, ki daje uporabnikom največ možnosti za nadaljnjo uporabo dela, pri čemer morajo navesti avtorja.

Sekundarni jezik

• Jezik: Slovenski jezik
• Ključne besede: gorivne celice, protonsko prepustna membrana, analiza življenjskega cikla, model inventarja življenjskega cikla, degradacija, obratovalni režim, okoljski vplivi

Projekti

• Financer: ARRS - Agencija za raziskovalno dejavnost Republike Slovenije
• Številka projekta: P2-0401
• Naslov: Energetsko strojništvo