| 摘要 |
PROBLEM TO BE SOLVED: To respond quickly to carbon deposit by monitoring carbon deposit automatically. SOLUTION: Flow meters 9 and 10 and concentration meters for CO2 , H2 O, CH4 11 and 12 are arranged in a gas supply path 7 and exhaust path 8 leading to/from the anode 3 of a fuel cell FC. The rates of gas flow at the inlet to and outlet from the anode 3 are determined by a gas rate-of-flow measuring gauge 13 on the basis of the flow signals 9a and 10a given by the flow meters 9 and 10. The concentrations of CO2 , H2 O, CH4 are determined by a concentration measuring gauge 14 on the basis of the concentration signals 11a and 12a given by the concentration meters 11 and 12. The carbon deposition reaction time and carbon eliminating reaction time are determined from the obtained data of the rates of gas flow and the concentration, and on the basis of these reaction times the carbon eduction time is determined by a calculation device 15. A positive carbon deposit time indicates occurrence of carbon deposition. |
