So, on our two frame 7 gas turbines (DLN 2.0 using quat, Mark V) we have manual tuning valves on coming off the secondary gas line to the fuel nozzles. Typically we don't touch these tuning valves. We leave them at roughly 8 turns open. That was fine when running our older 8k hardware, but now we've finally transitioned to 12k hardware. After a few discussions and research on the use of the valves, it's been brought to our attention that these valves should be open 12 turns for the 12k hardware.
That seems simple enough, but the overall plant knowledge of these valves, and how/why they are used is minimal. After speaking with a neighboring plant that has similar tuning valves, I learned that one of their managers uses them periodically to adjust individual can dynamics while online. They have about as much literature as we do on the use of the tuning valves, which is essentially zero. I've looked for two days online trying to find any documentation on the tuning valves and their proper use but have not been able to find anything.
Does anybody have any information on the operation of these valves that they are willing to share?
That seems simple enough, but the overall plant knowledge of these valves, and how/why they are used is minimal. After speaking with a neighboring plant that has similar tuning valves, I learned that one of their managers uses them periodically to adjust individual can dynamics while online. They have about as much literature as we do on the use of the tuning valves, which is essentially zero. I've looked for two days online trying to find any documentation on the tuning valves and their proper use but have not been able to find anything.
Does anybody have any information on the operation of these valves that they are willing to share?