Process engineers need many calculations related to orifice design e.g. for

1. Restriction Orifice Dia.
2. Maximum possible flow through Restriction Orifice for a given dia.
3. Flow of gases through spargers with a given hole size & pipe Dia.
4. calculation of new size of holes for spargers.
5. Pressure drop across Orifice.

And many more..........SO I am attaching a very simple excel sheet for such calculations, which is not very complicated yet useful for almost 98-99% accuracy.

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