Determination of fuel utilisation and recirculated gas composition in dead-ended PEMFC systems

Pauli Koski; Jaana Viitakangas; Jari Ihonen

doi:10.1016/j.ijhydene.2020.04.252

Determination of fuel utilisation and recirculated gas composition in dead-ended PEMFC systems

Pauli Koski^*
, Jaana Viitakangas
, Jari Ihonen

^*Corresponding author for this work

Research output: Contribution to journal › Article › Scientific › peer-review

21 Citations (Scopus)

224 Downloads (Pure)

Abstract

This work presents a fundamental theory and methods for understanding the gas composition dynamics in PEMFC anode fuel supply compartments operated dead-ended with recirculation. The methods are applied to measurement data obtained from a PEMFC system operated with a 1 kW short stack. We show how fuel utilisation and stack efficiency, two key factors determining how well a fuel supply system performs, are coupled through the anode gas composition. The developed methods allow determination of the anode fuel supply molar balance, giving access to the membrane crossover rates and the extent of recirculated gas exchanged to fresh fuel during a purge. A methane tracer gas is also evaluated for estimating fuel impurity enrichment ratios. The above theory and methods may be applied in modelling and experimental research activities related to defining hydrogen fuel quality standards, as well as for developing more efficient and robust PEMFC system operation strategies.

Original language	English
Pages (from-to)	23201-23226
Journal	International Journal of Hydrogen Energy
Volume	45
Issue number	43
DOIs	https://doi.org/10.1016/j.ijhydene.2020.04.252
Publication status	Published - 3 Sept 2020
MoE publication type	A1 Journal article-refereed

Funding

The research leading to these results has received funding from the Fuel Cells and Hydrogen Joint Technology Initiative under the European Unions’s Seventh Framework Programme (FP7/2007–2013) under grant agreement n° 621223 (HyCoRA) and from the Fuel Cells and Hydrogen 2 Joint Undertaking for the European Unions’s Horizon 2020 Research and Innovation Programme under grant agreement n° 779475 (HYDRAITE).

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

SDG 7 Affordable and Clean Energy

Keywords

Anode recirculation
Dead-end anode
Fuel utilisation
Gas crossover
PEMFC
Tracer gas

Access to Document

10.1016/j.ijhydene.2020.04.252Licence: CC BY

j.ijhydene.2020.04.252Final published version, 3.92 MBLicence: CC BY

Cite this

@article{36f6e60c9efa43178a1ed1763f943f52,

title = "Determination of fuel utilisation and recirculated gas composition in dead-ended PEMFC systems",

abstract = "This work presents a fundamental theory and methods for understanding the gas composition dynamics in PEMFC anode fuel supply compartments operated dead-ended with recirculation. The methods are applied to measurement data obtained from a PEMFC system operated with a 1 kW short stack. We show how fuel utilisation and stack efficiency, two key factors determining how well a fuel supply system performs, are coupled through the anode gas composition. The developed methods allow determination of the anode fuel supply molar balance, giving access to the membrane crossover rates and the extent of recirculated gas exchanged to fresh fuel during a purge. A methane tracer gas is also evaluated for estimating fuel impurity enrichment ratios. The above theory and methods may be applied in modelling and experimental research activities related to defining hydrogen fuel quality standards, as well as for developing more efficient and robust PEMFC system operation strategies.",

keywords = "Anode recirculation, Dead-end anode, Fuel utilisation, Gas crossover, PEMFC, Tracer gas",

author = "Pauli Koski and Jaana Viitakangas and Jari Ihonen",

note = "Publisher Copyright: {\textcopyright} 2020 The Author(s)",

year = "2020",

month = sep,

day = "3",

doi = "10.1016/j.ijhydene.2020.04.252",

language = "English",

volume = "45",

pages = "23201--23226",

journal = "International Journal of Hydrogen Energy",

issn = "0360-3199",

publisher = "Elsevier",

number = "43",

}

TY - JOUR

T1 - Determination of fuel utilisation and recirculated gas composition in dead-ended PEMFC systems

AU - Koski, Pauli

AU - Viitakangas, Jaana

AU - Ihonen, Jari

PY - 2020/9/3

Y1 - 2020/9/3

N2 - This work presents a fundamental theory and methods for understanding the gas composition dynamics in PEMFC anode fuel supply compartments operated dead-ended with recirculation. The methods are applied to measurement data obtained from a PEMFC system operated with a 1 kW short stack. We show how fuel utilisation and stack efficiency, two key factors determining how well a fuel supply system performs, are coupled through the anode gas composition. The developed methods allow determination of the anode fuel supply molar balance, giving access to the membrane crossover rates and the extent of recirculated gas exchanged to fresh fuel during a purge. A methane tracer gas is also evaluated for estimating fuel impurity enrichment ratios. The above theory and methods may be applied in modelling and experimental research activities related to defining hydrogen fuel quality standards, as well as for developing more efficient and robust PEMFC system operation strategies.

AB - This work presents a fundamental theory and methods for understanding the gas composition dynamics in PEMFC anode fuel supply compartments operated dead-ended with recirculation. The methods are applied to measurement data obtained from a PEMFC system operated with a 1 kW short stack. We show how fuel utilisation and stack efficiency, two key factors determining how well a fuel supply system performs, are coupled through the anode gas composition. The developed methods allow determination of the anode fuel supply molar balance, giving access to the membrane crossover rates and the extent of recirculated gas exchanged to fresh fuel during a purge. A methane tracer gas is also evaluated for estimating fuel impurity enrichment ratios. The above theory and methods may be applied in modelling and experimental research activities related to defining hydrogen fuel quality standards, as well as for developing more efficient and robust PEMFC system operation strategies.

KW - Anode recirculation

KW - Dead-end anode

KW - Fuel utilisation

KW - Gas crossover

KW - PEMFC

KW - Tracer gas

UR - https://www.scopus.com/pages/publications/85088869046

U2 - 10.1016/j.ijhydene.2020.04.252

DO - 10.1016/j.ijhydene.2020.04.252

M3 - Article

AN - SCOPUS:85088869046

SN - 0360-3199

VL - 45

SP - 23201

EP - 23226

JO - International Journal of Hydrogen Energy

JF - International Journal of Hydrogen Energy

IS - 43

ER -

Determination of fuel utilisation and recirculated gas composition in dead-ended PEMFC systems

Abstract

Funding

UN SDGs

Keywords

Access to Document

Other files and links

Fingerprint

HYDRAITE: Hydrogen Delivery Risk Assessment and Impurity Tolerance Evaluation

Cite this

Determination of fuel utilisation and recirculated gas composition in dead-ended PEMFC systems

Abstract

Funding

UN SDGs

Keywords

Access to Document

Other files and links

Fingerprint

Projects

HYDRAITE: Hydrogen Delivery Risk Assessment and Impurity Tolerance Evaluation

Cite this