A
Hello,
Recently I am facing an issue of fluctuating allowable spread in Hitachi H-25 gas turbine. The value of allowable spread is fluctuating from 80 degrees (which is usually the normal value at load of 21MW) to 150 degrees at 21MW. Values of actual spreads are normal as per previous history and showing no abnormal behavior.
Note: There is no substantial change in compressor discharge pressure which is one of the factor in calculation of allowable spread.
Recently I am facing an issue of fluctuating allowable spread in Hitachi H-25 gas turbine. The value of allowable spread is fluctuating from 80 degrees (which is usually the normal value at load of 21MW) to 150 degrees at 21MW. Values of actual spreads are normal as per previous history and showing no abnormal behavior.
Note: There is no substantial change in compressor discharge pressure which is one of the factor in calculation of allowable spread.