There is a plan to connect 2 inch pipeline into a 16 inch pipeline. 16 inch pipeline operating pressure is 7.5 bar (Continuos flow) and PSHH is 13.5 bar.
2 inch line operating pressure is 10.0 bar and this line is having a control valve. Upstream pressure is 120 bar and Downstream pressure is 10.0 bar.
Maximum Flow rate through the line is 6648 Kg/hr. Service is Natural Gas Condensate.
In case, if Gas Blow-by occurs through the control valve what will be the increase in downstream pressure. (Approximately).
Looking for hand calculation formula to estimate downstream pressure approximately.