F
Hello everybody
we have four GE 9E gas turbines dual fuel running on gas.
DLN1 with 3 independent control valves system.
no IBH.
at the start up of the unit we can reach lean-lean positive without any problems. to transfer to premix steady state mode we have to stay in the lean-lean positive at load of 75 MW and wait for the secondary flame reading to rise. they start from "ZERO" value and takes up to one complete hour (some times 40 minutes or 30 minutes) to reach more than 40% on three of them so we can transfer to SS-premix mode.
once the unit converted to SS-premix, it can be lowered to any mode and convert easily to SS-premix.
i think these units are not designed to be like that does any one here have seen anything like this? and found away to solve this problem?
regards
we have four GE 9E gas turbines dual fuel running on gas.
DLN1 with 3 independent control valves system.
no IBH.
at the start up of the unit we can reach lean-lean positive without any problems. to transfer to premix steady state mode we have to stay in the lean-lean positive at load of 75 MW and wait for the secondary flame reading to rise. they start from "ZERO" value and takes up to one complete hour (some times 40 minutes or 30 minutes) to reach more than 40% on three of them so we can transfer to SS-premix mode.
once the unit converted to SS-premix, it can be lowered to any mode and convert easily to SS-premix.
i think these units are not designed to be like that does any one here have seen anything like this? and found away to solve this problem?
regards