Following the recent plant trip, the Steam Turbine (ST) turning gear was engaged, and the machine remained on turning for over 24 hours. Upon startup and ramp-up to full speed, abnormal behavior was observed in the turning gear mechanism while the unit remained in operation.
Initially, the...
At our powerplant we are experiencing a high vibration issue at one of the cooling towers. We have 4 induced draft cooling fans. The civil structure is based on two towers with two fan stacks each. The issue is occurring at Fan B, which is adjacent to Fan A. The fan consists of 8 blades having...
We have a gas turbine of 127 MW (GE) frame 9E. The GT has conventional combustors and can run on both Gas and HSD. All the parameters including spreads were normal before the planned outage. During last CI, major Liner damage was observed with complete cap cowl assembly damage. Fuel Nozzles...
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