- #1
Talgat
- 3
- 0
Hello,
I have abnormal situation on a site, there are installed 3 valves in parallel (cascade) in Fuel gas skid, upstream pressure of the valve is 30 bar, downstream pressure 25-26 bar, when 2 GTG starts up to load 40 MWt (100 %) the downstream pressure of the control valves decreses to 21 bar (this affect to GTG to decrease load), upstream pressure is stable 30 bar, What can be the reasone of incresing of ΔP? one option that design upstream pressure is 37 bar (dew to some reazons we cannot reach that 37 bar) Is this anyhow affect to the valve's ΔP; and at nearest time GTS's will increase load up to 120 MWt.
Please help to identify the problem!
I have abnormal situation on a site, there are installed 3 valves in parallel (cascade) in Fuel gas skid, upstream pressure of the valve is 30 bar, downstream pressure 25-26 bar, when 2 GTG starts up to load 40 MWt (100 %) the downstream pressure of the control valves decreses to 21 bar (this affect to GTG to decrease load), upstream pressure is stable 30 bar, What can be the reasone of incresing of ΔP? one option that design upstream pressure is 37 bar (dew to some reazons we cannot reach that 37 bar) Is this anyhow affect to the valve's ΔP; and at nearest time GTS's will increase load up to 120 MWt.
Please help to identify the problem!