Modeling and experimental validation of a unitized regenerative fuel cell in electrolysis mode of operation

Autor: Prakash C. Ghosh, Amit C. Bhosale, Swapnil R. Mane, Debanand Singdeo
Rok vydání: 2017
Předmět:
System
Imagination
Engineering
Neunburg Vorm Wald
Clamping Pressure
Chemical substance
Hydrogen
Performance
020209 energy
media_common.quotation_subject
Mechanical engineering
chemistry.chemical_element
Gas-Diffusion Layer
02 engineering and technology
Unitized regenerative fuel cell
Industrial and Manufacturing Engineering
law.invention
Electrolyser
Predicting Contact Resistance
law
0202 electrical engineering
electronic engineering
information engineering
Electrical and Electronic Engineering
Polarization (electrochemistry)
Contact Resistance
Civil and Structural Engineering
media_common
Electrolysis
business.industry
Mechanical Engineering
Contact resistance
Membrane
Energy Recovery
Building and Construction
021001 nanoscience & nanotechnology
Pollution
Clamping
Clamping Pressure Distribution
Operating Pressure
General Energy
chemistry
Bipolar Plates
0210 nano-technology
business
Unitized Regenerative Fuel Cell
Zdroj: Energy. 121:256-263
ISSN: 0360-5442
Popis: Unitized regenerative fuel cell (URFC) is considered to be the compact solution to generate and utilize hydrogen. It possesses combined capabilities of operating in fuel cell and electrolyser modes. In the present study, the performance of a URFC in electrolyser mode is modelled and also experimentally validated. The performances are being modelled using a combination of structural and CFD analysis tool. The effect of the operating gas pressure on the variation in the contact pressure between GDL and BPP on the performances are studied. The clamping pressure, as well as the operating pressure of the electrolyser, are seen to have a high impact on the contact resistance and thereby the performance as well. It is observed that the simulated polarization behavior is in good agreement with the experimental results. To restrict the area specific resistance below 150 m Omega) cm(2) the operating pressure should be maintained below 5.9 bar at clamping pressure of 1.5 MPa. (C) 2017 Elsevier Ltd. All rights reserved.
Databáze: OpenAIRE
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