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CSA, Thank you for this advice. I'll definitely try to learn it and get the most of it.

Dear CSA, sorry something I don't get in the quote. >As the unit is loaded from FSNL to Base Load, TTRX will >decrease. As TTRX decreases, FSRT will decrease. I will try >to find a Mark IV elementary and see if I can glean >something from the FSRT algorithm, but it would be very >helpful...

Thank you CSA, I appreciate your help GE now has recommended to check the fuel nozzles (especially Can#1) using a borescope although I don't know how they have specified this Particular Can. Can you put it in another way how you have reached the conclusion of one or more than one of the...

CSA, The location of the diverter damper is exactly as Otised have mentioned. I don't believe the problem is related to the diverter damper beacause the spreads are happening before the damper opens. In other words, the spread happens before the exhaust temperature reaches 370 degrees Celsius...

Forgot to mention something. CSA, you are right. The CTIM sensor is a K Type Thermocouple. There are 3 of them at each GT. There are not calibrated ones as you have mentioned. The one who gave me the information about CTIM Tuning was incorrect. Thank you!

Otised, I am very happy that you have joined the thread. Wishing to learn from your experience. CSA, As always you are willing to help others solve their issues. Sorry It took may a while to gather the information you have asked for, since I'm out of the plant these days. There is a lot going...

What causes the IGV to suddenly change the reference like in this case? Why it has gone to mechanical stop position? >The other trip was high exhaust temperature trip while the >unit was operating on part load. the hydraulic oil line >supplying the IGV valve bursted and the hydraulic...

CSA, I really appreciate your constant presence for helping people. I hope you can bear with me a little and elaborate as much as possible The piston hydraulic pumps supply both hydraulic and lift oil. but this has nothing to do with our problem. The hydraulic pumps will stop supplying the...

The main purpose of this thread is: 1- What is the minimum hydraulic pressure that the turbine can survive without any problem. I heard it is around 700 Psig. Is that true. 2- What happens to the GCV and IGV if the hydraulic pressure gets very very low and why ?? (for example huge leak in...

ONE IMPORTANT NOTE: I said in the thread that the decrease in WATT is due to GCV closing. I am not sure about that, maybe the SRV was the one closing. I will plot P2 and GCV positions in the near time and see.

Hi CSA Unfortunately, there is no mention of diffusion air in the operation manual. Also I asked the GE consulting office in my plant, and they seem have no information about it. what puzzles me is that when you look at the cutaway of the fuel nozzle of DLN2.6, you will see five passages...

CSA, Yes this helps. also you brought a good point about the holes in the liner. I believe the liner has two types of holes. One for cooling and the other hole is involved in the combustion process. If possible, can you mention some of the points involved for introducing air into the...

Hi glenmorangie I have a decent experience with liquid fuel re circulation. Our unit is 7 FA DLN2.6. The purpose of the liquid fuel re circulation system can be summarized into three points. First, Protecting the liquid fuel divider gears from binding to each others due to non-use of...

CSA Thank you for the fast reply. When running the unit on gas and the re-circulation is ON, usually we suffer from liquid passing into the False Start Drain Tank. The source that may cause the passing are several points in the Liquid Fuel System including the Liquid Fuel Filters Thermal...