Thanks for joining, I really need to find out what would be my adibatic flash temperature, say, 10 feet downstream where flash temperature starts off. For example, if the flash temperature goes down to 5F what would it be 10 feet down the road? 7F or 10F (the line is not insulated)
Hi everyone
Pls. help me with the following problem. There is 10 feet long and 4" in diameter blow down line coming out of LPG heat exchanger and I need to figure out the line temperature change along the line as result of opening block valve from this pressurized LPG heat exchanger to blow...
Thank you all for your help
Now, I can understand that depressurization control valve must be set below PSV setting. But, considering the fact the depressurization control valve normally comes in large size, the PSV may not open. How the PSV could open while the depressurization control valve...
please help with the following
There is a fractionation column which has multiple safety relief valves installation on top. Also, the column is equipped with depressurization pressure control valve. My questions are the following:
1-What is the function of the depressurization pressure...
We have new centrifugal pump and compressor, which are mechanically ready for placing in light hydrocarbon service. In short, the compressor will compress the propane gas and condense it through fin-fan cooler where the pump pumps the liquefied propane for further treatment.
My question is...
Are all three pumps running at te same time, or is one pump an "installed spare" ?
For non-routine operation, the 3 pumps will be running at the same time.
Do all pumps feed a commnon header and are is the system then piped to the boilers ?
All pumps have common suction and discharge headers...
There are 3 boiler feed water (BFW) pumps feeding 2 water-tube boilers. The BFW pumps supply the boilers with boiler feed water at discharge pressure of 900 psig and with pumping capacity that is good enough to feed the 2 boilers. The 2 boilers provide heating steam for process heaters.
My...
There are NO VSDs on these pumps. We close minimum recycle control valve during pump start up in order to build pressure.
I agree our logic is backward. The valve should close when pump shutdowns or trips.
Just for the sake of answering my thread, can you please answer the question in the...
Thank you all for participations. I will try to describe my case again. Sorry, I could not make a clear picture.
We have four centrifugal pumps each is 130,000 bbl per day in capacity. Normally, three pumps are running and one is on standby. The pumping system is consisting of the following...
How can I predict the pressure drop in the 30" header (570 psig) in the first 5 mints. once the 8" minimum flow control valve opens fully? the minimum flow control valve is connected the pump suction header (16" with pressure of 270 psig)
Thank you all
We have 4 running centrifugal pumps. Each pump is equipped with 8” minimum flow recycle line. Each recycle line has flow control valve and check valve (downstream of the control valve. All 4 pumps discharge into one common header, 24”.
There will be additional 5th pump identical to the...
Thank you all for your kind attention and contributions to my thread.
I agree to replace the nozzle and plate around it with a new one based on proper design calculations.
Again Thanks
The thickness is 6mm.
If I apply forces to move the metal back into place, is there a way or test to make sure that the metal integrity is not runied?
again thanks all!
Thanks JStephen
What about hammering the internal side (inside the tank) of the buckled areas so that they come back to their orignal positions
or Do you think pulling out the inlet nozzel could help?
Again many thanks
Pls. help with solutions or ideas to recover buckled areas on a tank.
We have atmospheric storage tank, 46 feet Diameter X 48 feet high. The tank consisted of 6 courses. The tank 24” inlet, located on course No. 3, was subjected to external force which resulted in buckled areas around the...
