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Title: Cold-start characteristics of polymer electrolyte fuel cells

Abstract

In this paper, we investigate the electrochemical reaction kinetics, species transport, and solid water dynamics in a polymer electrolyte fuel cell (PEFC) during cold start. A simplitied analysis is developed to enable the evaluation of the impact of ice volume fraction on cell performance during coldstart. Supporting neutron imaging data are also provided to reveal the real-time water evolution. Temperature-dependent voltage changes due to the reaction kinetics and ohmic loss are also analyzed based on the ionic conductivity of the membrane at subfreezing temperature. The analysis is valuable for the fundamental study of PEFC cold-start.

Authors:
 [1];  [1];  [2];  [2];  [3]
+ Show Author Affiliations
  1. Los Alamos National Laboratory
  2. UNIV. CAL. RIVERSIDE
  3. ORNL
Publication Date:
Research Org.:
Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
983923
Report Number(s):
LA-UR-10-00283; LA-UR-10-283
TRN: US201015%%790
DOE Contract Number:  
AC52-06NA25396
Resource Type:
Conference
Resource Relation:
Conference: The 14th International Heat Transfer Conference (IHTC) ; August 7, 2010 ; Washington, D.C.
Country of Publication:
United States
Language:
English
Subject:
30 DIRECT ENERGY CONVERSION; 36 MATERIALS SCIENCE; EVALUATION; HEAT TRANSFER; IONIC CONDUCTIVITY; MEMBRANES; NEUTRONS; PERFORMANCE; PROTON EXCHANGE MEMBRANE FUEL CELLS; REACTION KINETICS; TRANSPORT; WATER

Citation Formats

Mishler, Jeff, Mukundan, Rangachary, Wang, Yun, Mishler, Jeff, and Mukherjee, Partha P. Cold-start characteristics of polymer electrolyte fuel cells. United States: N. p., 2010. Web.
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Mishler, Jeff, Mukundan, Rangachary, Wang, Yun, Mishler, Jeff, & Mukherjee, Partha P. Cold-start characteristics of polymer electrolyte fuel cells. United States.
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Mishler, Jeff, Mukundan, Rangachary, Wang, Yun, Mishler, Jeff, and Mukherjee, Partha P. 2010. "Cold-start characteristics of polymer electrolyte fuel cells". United States. https://www.osti.gov/servlets/purl/983923.
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@article{osti_983923,
title = {Cold-start characteristics of polymer electrolyte fuel cells},
author = {Mishler, Jeff and Mukundan, Rangachary and Wang, Yun and Mishler, Jeff and Mukherjee, Partha P},
abstractNote = {In this paper, we investigate the electrochemical reaction kinetics, species transport, and solid water dynamics in a polymer electrolyte fuel cell (PEFC) during cold start. A simplitied analysis is developed to enable the evaluation of the impact of ice volume fraction on cell performance during coldstart. Supporting neutron imaging data are also provided to reveal the real-time water evolution. Temperature-dependent voltage changes due to the reaction kinetics and ohmic loss are also analyzed based on the ionic conductivity of the membrane at subfreezing temperature. The analysis is valuable for the fundamental study of PEFC cold-start.},
doi = {},
url = {https://www.osti.gov/biblio/983923}, journal = {},
number = ,
volume = ,
place = {United States},
year = {Fri Jan 01 00:00:00 EST 2010},
month = {Fri Jan 01 00:00:00 EST 2010}
}
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Conference:
View Conference (1.34 MB)
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