| 摘要 |
PROBLEM TO BE SOLVED: To promptly detect abnormal combustion of a combustor. SOLUTION: An excess air ratioλis forcibly changed at a predetermined cycle, and when the absolute value of a temperature difference between a detection temperature Ts<SB>1</SB>detected before the ratioλis changed and a detection temperature Ts<SB>2</SB>detected after the ratioλis changed is above a predetermined temperature differenceΔTo, the combustor 100 is immediately stopped. Thereby, the abnormal combustion of the combustor 100 is promptly detected, so that a harmful substance, black smoke or white smoke contained in a combustion gas can be prevented from being emitted in large quantities. COPYRIGHT: (C)2003,JPO
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