| 摘要 |
<P>PROBLEM TO BE SOLVED: To easily calculate the change amount of turbine efficiency without using a special measurement apparatus. <P>SOLUTION: A monitoring device 10 is employed in a gas turbine in which intake air supplied from the inlet side of a compressor is compressed in the compressor, the compressed air is supplied via a combustion unit to a turbine, and cooling air for cooling the turbine extracted from the compressor is supplied to the turbine. The monitoring device includes: a first calculation unit 11 which calculates, in a predetermined period, a compressor flow volume change amount that is a change amount in the flow volume of intake air at the inlet side of the compressor, a compressor efficiency change amount that is the change amount of efficiency of the compressor, and a turbine cooling air volume change amount that is the change amount of the flow volume of the cooling air in the turbine; and a second calculation unit 12 which calculates the change amount of turbine efficiency based on the compressor flow volume change amount, the compressor efficiency change amount and the turbine cooling air volume change amount. <P>COPYRIGHT: (C)2013,JPO&INPIT |
