Pressure Drop in Restricted Orifice Calculation

[Arta1606]

Hi to all, is there any standards that has equations to calculate pressure drop in restricted orifices related to their holes size ?

 

[EmmanuelTop]

Yes, and it is called orifice equation. See:

https://neutrium.net/fluid_flow/calculation-of-flow-through-nozzles-and-orifices/

http://www.mcnallyinstitute.com/13-html/13-12.htm

http://www.engineeringtoolbox.com/orifice-nozzle-venturi-d_590.html

Dejan IVANOVIC
Process Engineer, MSChE

 

[JohnGP]

Arta1606, if you want to reference actual standards, have a look at the ISO 5167 group of standards - i.e. Part 1 has general principles and requirements, Part 2 has requirements and equations for orifice plates.
Cheers,
John

 

[Arta1606]

So many thanks to you. There is another question which is : calculating pressure drop in multi hole orifices. How can I calculate that??

 

[EmmanuelTop]

This has been discussed earlier in the forum. See thread378-205170


Dejan IVANOVIC
Process Engineer, MSChE