Friends:
Natural Gas Pipeline has two branches in service in the Pressure Control Station, downstream both have "T" to joint both flows, in this pipeline configuration, what is the minimun distance recommendation to install a Gas Pressure Tubing for a Pressure Transmitter?.
Thanks in advance.
Hi everybody:
34", 408 km, natural gas pipeline, with min. MAOP design and min MAOP hydrotest as data, I would like to know which is the best way to setting my scada alarms for high, high high, low and low low pressure?.
Thanks in advance.
Hi Folks:
David, I assumed 100% of Methane density, I have the compossition now and I've found this for Z-Factor Calculation:
http://www.mechengcalculations.com/jmm/pipe015_process.jsp
How is your Density Calculation?
Biginch, the diference is 2.5% without segments, I would like to know...
Hi Everybody:
I would like to know about Linepack calculation, In 408 km natural gas pipeline 34 inches in diameter, there are stations every 30 Km with PT's and TT's, I did the calculation in segments, I would like to improve this standar volume calculation adding gas composition.
Thanks in...
Thanks to everybody:
BigInch, "put in the Scada system", I'm talking about shutdown initiator from control room, they will be programmed like push buttons in the control system, are there some rules to put this ESD in different places?
Bye There
Hi There
I'm in a SCADA commissiong for a gas pipeline (408 km), Emergency Shut Down from Control Room is being set up:
1.- One for metering station, ESD closes all MS valves.
2.- One for Pressure control station, ESD closes all PCS valves.
3.- One for Plant Facility Receiver, ESD closes all...
GTstartup, I would like to know where could I get an example of that calculation?, as you know ambient temperature and others have more influence than washing the compresor in MW.
Steam turbines with centrifugal overspeed device need to be tested at real overspeed (10% of nominal speed), I've worked with 33, 66 and 135 MW steam turbines. As a back-up, is necessary to test a push button trip, after that one operator is checking the speed ready to trip the turbine with that...