help me understanding these concepts

Q1) In what terms ICV is better than Splitter?

Q3) what is the major difference between ICV and Splitter

Q2) Pros and Cons/Differences of Splitter and ICV?

 

Sanjay029m,

The reasons for moving to the Independent Gas Control Valve (IGCV) configuration were two-fold: standardization, and a move to get away from the combined SRV/GCV assemblies. The OEM wanted to have a gas valve configuration that could be used for DLN-I, DLN 2, DLN 2.6, etc--and the IGCV configuration does that. There is some scaling of valves and piping for different Frame size machines, but the basic skid layout and configuration is the same.

The control scheme is slightly more complicated, but nothing that the Speedtronic turbine control systems can't handle easily.

By using multiple valves (downstream of the SRV), the fuel flow to the various fuel nozzles/combustion zones of various DLN combustors can be controlled just as if there were three-way splitter- and transfer valves, but using regular "one-way" valves, which also somewhat reduces the cost of the valves.

So, by switching to the IGCV configuration the same basic configuration can be used for different DLN combustion systems on different Frame size machines, there is no longer a need for the combined GCV/SRV assemblies, and to some extent the valves were supposed to be a little less costly.

Other than standardization and a perceived cost benefit, there is no reason/there are no reasons which makes the IGCV configuration better than the old SRV/GCV and splitter/transfer valve. They will both accomplish the same purpose and the turbine control system can be programmed to use either configuration.

Hope this helps!