In situ PEM fuel cell water measurements
Abstract
Efficient PEM fuel cell performance requires effective water management. The materials used, their durability, and the operating conditions under which fuel cells run, make efficient water management within a practical fuel cell system a primary challenge in developing commercially viable systems. We present experimental measurements of water content within operating fuel cells. in response to operational conditions, including transients and freezing conditions. To help understand the effect of components and operations, we examine water transport in operating fuel cells, measure the fuel cell water in situ and model the water transport within the fuel cell. High Frequency Resistance (HFR), AC Impedance and Neutron imaging (using NIST's facilities) were used to measure water content in operating fuel cells with various conditions, including current density, relative humidity, inlet flows, flow orientation and variable GDL properties. Ice formation in freezing cells was also monitored both during operation and shut-down conditions.
- Authors:
-
- Los Alamos National Laboratory
- Publication Date:
- Research Org.:
- Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 960481
- Report Number(s):
- LA-UR-08-04978; LA-UR-08-4978
Journal ID: ISSN 1938--5862; TRN: US201006%%1149
- DOE Contract Number:
- AC52-06NA25396
- Resource Type:
- Conference
- Resource Relation:
- Journal Volume: 17; Journal Issue: 1; Conference: 2008 Fuel Cell Seminar and Exposition ; October 27, 2008 ; Phoenin
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 36 MATERIALS SCIENCE; 30 DIRECT ENERGY CONVERSION; CURRENT DENSITY; FREEZING; FUEL CELLS; HUMIDITY; ICE; IMPEDANCE; MANAGEMENT; MATERIALS; NEUTRONS; OPERATION; ORIENTATION; PERFORMANCE; PROTON EXCHANGE MEMBRANE FUEL CELLS; TRANSIENTS; TRANSPORT; WATER
Citation Formats
Borup, Rodney L, Mukundan, Rangachary, Davey, John R, and Spendalow, Jacob S. In situ PEM fuel cell water measurements. United States: N. p., 2008.
Web. doi:10.1149/1.3142755.
Borup, Rodney L, Mukundan, Rangachary, Davey, John R, & Spendalow, Jacob S. In situ PEM fuel cell water measurements. United States. https://doi.org/10.1149/1.3142755
Borup, Rodney L, Mukundan, Rangachary, Davey, John R, and Spendalow, Jacob S. 2008.
"In situ PEM fuel cell water measurements". United States. https://doi.org/10.1149/1.3142755. https://www.osti.gov/servlets/purl/960481.
@article{osti_960481,
title = {In situ PEM fuel cell water measurements},
author = {Borup, Rodney L and Mukundan, Rangachary and Davey, John R and Spendalow, Jacob S},
abstractNote = {Efficient PEM fuel cell performance requires effective water management. The materials used, their durability, and the operating conditions under which fuel cells run, make efficient water management within a practical fuel cell system a primary challenge in developing commercially viable systems. We present experimental measurements of water content within operating fuel cells. in response to operational conditions, including transients and freezing conditions. To help understand the effect of components and operations, we examine water transport in operating fuel cells, measure the fuel cell water in situ and model the water transport within the fuel cell. High Frequency Resistance (HFR), AC Impedance and Neutron imaging (using NIST's facilities) were used to measure water content in operating fuel cells with various conditions, including current density, relative humidity, inlet flows, flow orientation and variable GDL properties. Ice formation in freezing cells was also monitored both during operation and shut-down conditions.},
doi = {10.1149/1.3142755},
url = {https://www.osti.gov/biblio/960481},
journal = {},
issn = {1938--5862},
number = 1,
volume = 17,
place = {United States},
year = {Tue Jan 01 00:00:00 EST 2008},
month = {Tue Jan 01 00:00:00 EST 2008}
}