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Conceptual design of an integrated thermally self-sustained methanol steam reformer : high-temperature PEM fuel cell stack manportable power generator
Lotrič, Andrej (Avtor), Sekavčnik, Mihael (Avtor), Pohar, Andrej (Avtor), Likozar, Blaž (Avtor), Hočevar, Stanko (Avtor)

URLURL - Izvorni URL, za dostop obiščite http://www.sciencedirect.com/science/article/pii/S0360319917319225 Povezava se odpre v novem oknu
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Izvleček
We have investigated the concept of an integrated system for small, manportable power units. The focus of this study is the direct thermal coupling of a methanol steam reformer (MSR) and a high-temperature proton exchange membrane fuel cell (HT PEMFC) stack. A recently developed low-temperature (LT) MSR catalyst (CuZnGaOx) was synthesized and tested in a designed reforming reactor. The experimental data show that at 200 °C the complete conversion of methanol is achievable with a hydrogen yield of 45 cm3 min-1 gCAT -1 . An experimental setup for measuring the characteristics of the integrated system was designed and used to measure the characteristics of the two-cell HT PEMFC stack. The obtained kinetic parameters and the HT PEMFC stack characteristics were used in the modeling of the integrated system. The simulations confirmed that the integrated LT MSR/ HT PEMFC stack system, which also includes a vaporizer, can achieve a thermally selfsustained working point. The base-case scenario, established on experimental data, predicts a power output of 8.5 W, a methanol conversion of 98.5%, and a gross electrical efficiency (based on the HHV) of the system equal to 21.7%. However, by implementing certain measures, the power output and the electrical efficiency can readily be raised to 11.1 W and 35.5%, respectively.

Jezik:Angleški jezik
Ključne besede:methanol steam reformer, logistic fuel processor, PEM fuel cell, thermal system integration, modeling and optimization, computational fluid dynamics (CFD), fuell cells, proton exchange membranes, fuel processors, methanol steam reforming, heat integrated systems, energy systems modeling
Vrsta gradiva:Članek v reviji (dk_c)
Tipologija:1.01 - Izvirni znanstveni članek
Organizacija:FS - Fakulteta za strojništvo
Leto izida:2017
Datum sprejetja članka:09.05.2017
Datum objave članka:12.06.2017
Št. strani:Str. 16700-16713
Številčenje:Vol. 42, iss. 26
UDK:[620.9:66]:502.174.3
ISSN pri članku:0360-3199
DOI:10.1016/j.ijhydene.2017.05.057 Povezava se odpre v novem oknu
COBISS.SI-ID:15546139 Povezava se odpre v novem oknu
Število ogledov:131
Število prenosov:64
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Gradivo je del revije

Naslov:International journal of hydrogen energy
Skrajšan naslov:Int. j. hydrogen energy
Založnik:Elsevier, International Association for Hydrogen Energy
ISSN:0360-3199
COBISS.SI-ID:3338511 Povezava se odpre v novem oknu

Gradivo je financirano iz projekta

Financer:Drugi - Drug financer ali več financerjev
Program financ.:NATO
Številka projekta:EAP.SFPP 984738
Naslov:Science for Peace and Security
Akronim:SPS

Financer:Drugi - Drug financer ali več financerjev
Program financ.:Slovenian Ministry of Defense
Številka projekta:4300-434/2010-1
Naslov:

Financer:Drugi - Drug financer ali več financerjev
Program financ.:Centre of Excellence for Low-Carbon Technologies
Številka projekta:
Naslov:
Akronim:CO NOT

Financer:ARRS - Agencija za raziskovalno dejavnost Republike Slovenije (ARRS)
Program financ.:P2–0152
Številka projekta:
Naslov:

Financer:Drugi - Drug financer ali več financerjev
Program financ.:World Federation of Scientists (WFS)
Številka projekta:
Naslov:

Licence

Licenca:CC BY-NC-ND 4.0, Creative Commons Priznanje avtorstva-Nekomercialno-Brez predelav 4.0 Mednarodna
Povezava:http://creativecommons.org/licenses/by-nc-nd/4.0/deed.sl
Opis:Najbolj omejujoča licenca Creative Commons. Uporabniki lahko prenesejo in delijo delo v nekomercialne namene in ga ne smejo uporabiti za nobene druge namene.
Začetek licenciranja:12.06.2017

Sekundarni jezik

Jezik:Slovenski jezik
Ključne besede:gorivne celice, protonsko prevodne membrane, procesorji goriva, parni reformerji metanola, toplotno integrirani sistemi, modeliranje energetskih sistemov

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