J
I am retrofitting the fuel and auxiliaries control system for a single shaft EGT Tempest gas turbine driving a synch. generator. Came across a calculated parameter called "operating temperature" and need to know how this value is determined. At first I thought it may simply refer to the gas turbine exhaust temperature measurement, but after a closer look at the existing HMI screens I see it is different. My second thought was that it is an attempt to back-calculate turbine combustion temperature from EGT but it actually looks like a lower value (HMI screen shots are while unit is shutdown). It appears to be 30 degC less than the turbine's average calculated exhaust temperature.
Anyone familiar with this unit (or its modern counterpart the Siemens SGT300) that would be able/willing to explain how this value is determined and what it is mainly used for in the PLC.
Thanks,
Jake
Anyone familiar with this unit (or its modern counterpart the Siemens SGT300) that would be able/willing to explain how this value is determined and what it is mainly used for in the PLC.
Thanks,
Jake