2 replies to this topic

[anand1194]

Can someone please tell me the source of this formula below for flow through orifice in flashing condition? It would be very helpful.
Thank you.

 

p1 : Primary Pressure (kPa abs) p2 : Secondary Pressure (kPa abs) do : Diameter of Orifice (mm) C : Discharge Coefficient Qw : Water Flow Rate (m³/h) FL : Pressure recovery factor (=0.9) FF : Critical pressure ratio factor P : Absolute vapor pressure of the water at inlet temperature (kPa abs) SG : Specific Gravity

 

 

[breizh]

Hi

You may contact TLV for the source , they are using similar equation for water calculation flow rate .

IEC 60534-2-1 ?

 

good luck.

 

Breizh

Edited by breizh, 07 January 2019 - 05:14 AM.

[anand1194]

Thanks.