3 replies to this topic

[Said Salim]

Hi all,
I was asked to size an R.O of nitrogen flow of 7 bar to let down the pressure to 1 bar keeping into consideration the nitrogen flow should be 25 Nm3/h. What calculation standard of R.O sizing do you recommend to apply?

[latexman]

To what standard will the RO have to comply with?  My guess is . . . none, but you tell us.

[Bobby Strain]

If you search this forum you might find a download link to software that will size the RO. I remembered the link. Here it is.

 

http://www.mediafire...rifice_Flow.exe

 

Bobby

Edited by Bobby Strain, 11 February 2017 - 10:15 AM.

[ankur2061]

Said,

 

Are you trying to verify the orifice sizing equation through some standard? If yes, orifice sizing equations can be found from a variety of standards. One very popular standard for orifice sizing for a variety of orifice configurations (square-edge concentric, square-edge eccentric etc.) is the following:

 

ISO 5167 Part 2: Measurement of fluid flow by means of pressure differential devices inserted in circular-cross  section conduits running Full - Part 2: Orifice Plates

 

Regards,

Ankur.