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I2I, i have the guage pressure of nitrogen in the line.

how can i determine nitrogen mass flow rate through a pipe? only information i have is the pressure in the pipe and the temperature.

sorry the image was very poor quality

the current pumping rate is around 200 gpm. yes the suction and the discharge piping are the same. link to pump curve http://img126.imageshack.us/my.php?image=pumpcurvehp7.jpg

RCKMurphy, its a centrifugal(3 x 1.5 ", 3" suction nozzle, 1.5" discharge nozzle) pump for a 9 mile transfer line. the suction and discharge side pipe size is 6". the distance from pump center line to bottom of tank is very minimum, less than 5ft on the suction side. height of the liquid is...

we are interested in replacing an existing pump with a bigger pump. mainly the reason is we want increase the transfer rate by replacing the pump. can someone help on the things we should be considering in sizing the right pump. thanks

Doug, Its simple enough....I was trying to compare the basic principles method with the velocity factor method! thats all thanks

Thanks ash9144, I was using the following formula: Velocity = (Flow Rate * Vf * Passes) / No. of tubes Velocity, ft/sec Flow rate , gal/min Vf = velocity factor for standard tubing, 1/4" = 9.66 3/8" = 4.02 5/8" = 1.47 it doesnt have the velocity factor for the 3/4" tube. can anyone help...

Hello All, I am trying to figure out velocity in a vertical U-tube heat exchanger. the tubes are 3/4" OD, 0.065 wall thickness, and number of passes = 2. I have a volumetric flow rate and I would like to calculate the minimum and maximum velocity in the tube side. Also what would be the flow...

tkdhwjd: I have the number of moles N2 required from 25 psig to 45 psig, can you recommend the hydraulic calculation procedure? thanks

I am interested in finding the flow rate (lb/hr) of nitrogen after a regulator. the outlet pressure of regulator is around 45 psig. the N2 is going to a unit which has a volume of X lbs. the unit is to be filled with N2 just below the set psv pressure of 50 psig. I am trying to find out the...

Thank you owq. appreciate your help

Hello All, does any one have the current escalation values from Chemical Engineering Plant Cost Index? I have values from 1986 to 2002. I will appreciate it if some one can give the current values. 1986 318.4 to 2002 395.6 thank you

i am designing a 10" steam line for a flow of up to 10,000 lb/hr and upstream pressure of up to 40 psig. i will appreciate it if anyone can provide some guidance on sizing the condensate drum thanks

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