Title:
燃料極の異常判断方法および装置
Document Type and Number:
Japanese Patent JP5694970
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To determine abnormality of a fuel electrode due to oxidation of nickel exactly in a solid oxide fuel battery, which uses methane modified as fuel gas.SOLUTION: Partial water vapor pressure in exhaust gas discharged from a fuel electrode during power generation operation of a solid oxide fuel cell is measured as a measured partial water vapor pressure. Subsequently, the measure temperature of the measured partial water vapor pressure is compared with the temperature in a region where the fuel electrode is disposed, thus calculating the effective partial water vapor pressure in that region. Thereafter, the fact that the effective partial water vapor pressure has increased 6% or more than a normal value is detected, and a determination is made that abnormality has generated in the fuel electrode.
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Inventors:
Mizuki Kotoe
Katsuya Hayashi
Satoshi Sugita
Yoshida Yoshiaki
Katsuya Hayashi
Satoshi Sugita
Yoshida Yoshiaki
Application Number:
JP2012022882A
Publication Date:
April 01, 2015
Filing Date:
February 06, 2012
Export Citation:
Assignee:
Nippon Telegraph and Telephone Corporation
International Classes:
H01M8/04; H01M8/12
Domestic Patent References:
| JP2010067539A | ||||
| JP2010113867A | ||||
| JP2011113651A | ||||
| JP2011154787A |
Attorney, Agent or Firm:
Masaki Yamakawa
Shigeki Yamakawa
Yuzo Koike
Shigeki Yamakawa
Yuzo Koike