A map to start PEFC under freezing temperature - Theoretical analysis of super-cooled state in cell

Y. Ishikawa, M. Shiozawa, M. Kondo, Kohei Ito

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Efficient cold start of PEFC under freezing point can be realized by keeping the super-cooled state of generated water. If a super-cooled state is maintained, the cell can start under a freezing point with generated heat, and the cell reaches a steady state without the gas-supply block caused by the ice from the generated water. Difficult task, such as a shorter cold-start at a lower temperature, is possible by adequate choice of component material used in the cell, and by active heat generation with a suppressed air supply. Against such a background, this paper discussed which characteristic of the component in cell leads to the success of cold start, namely of keeping super-cooled state during cold start. This analysis was performed on the basis of heterogeneous nucleation theory, which considers the wettability of surface of the component material.

Original languageEnglish
Title of host publicationPolymer Electrolyte Fuel Cells 12, PEFC 2012
Pages123-135
Number of pages13
Edition2
DOIs
Publication statusPublished - Dec 1 2012
Event12th Polymer Electrolyte Fuel Cell Symposium, PEFC 2012 - 222nd ECS Meeting - Honolulu, HI, United States
Duration: Oct 7 2012Oct 12 2012

Publication series

NameECS Transactions
Number2
Volume50
ISSN (Print)1938-5862
ISSN (Electronic)1938-6737

Other

Other12th Polymer Electrolyte Fuel Cell Symposium, PEFC 2012 - 222nd ECS Meeting
CountryUnited States
CityHonolulu, HI
Period10/7/1210/12/12

Fingerprint

Freezing
Gas supply
Heat generation
Ice
Wetting
Water
Nucleation
Temperature
Air
Hot Temperature

All Science Journal Classification (ASJC) codes

  • Engineering(all)

Cite this

Ishikawa, Y., Shiozawa, M., Kondo, M., & Ito, K. (2012). A map to start PEFC under freezing temperature - Theoretical analysis of super-cooled state in cell. In Polymer Electrolyte Fuel Cells 12, PEFC 2012 (2 ed., pp. 123-135). (ECS Transactions; Vol. 50, No. 2). https://doi.org/10.1149/05002.0123ecst

A map to start PEFC under freezing temperature - Theoretical analysis of super-cooled state in cell. / Ishikawa, Y.; Shiozawa, M.; Kondo, M.; Ito, Kohei.

Polymer Electrolyte Fuel Cells 12, PEFC 2012. 2. ed. 2012. p. 123-135 (ECS Transactions; Vol. 50, No. 2).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Ishikawa, Y, Shiozawa, M, Kondo, M & Ito, K 2012, A map to start PEFC under freezing temperature - Theoretical analysis of super-cooled state in cell. in Polymer Electrolyte Fuel Cells 12, PEFC 2012. 2 edn, ECS Transactions, no. 2, vol. 50, pp. 123-135, 12th Polymer Electrolyte Fuel Cell Symposium, PEFC 2012 - 222nd ECS Meeting, Honolulu, HI, United States, 10/7/12. https://doi.org/10.1149/05002.0123ecst
Ishikawa Y, Shiozawa M, Kondo M, Ito K. A map to start PEFC under freezing temperature - Theoretical analysis of super-cooled state in cell. In Polymer Electrolyte Fuel Cells 12, PEFC 2012. 2 ed. 2012. p. 123-135. (ECS Transactions; 2). https://doi.org/10.1149/05002.0123ecst
Ishikawa, Y. ; Shiozawa, M. ; Kondo, M. ; Ito, Kohei. / A map to start PEFC under freezing temperature - Theoretical analysis of super-cooled state in cell. Polymer Electrolyte Fuel Cells 12, PEFC 2012. 2. ed. 2012. pp. 123-135 (ECS Transactions; 2).
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