Orifice calculation sheetService fluid Oxygen Note 1

Input Values Units Note 2D1 Line ID 154.1 mmD1 Line ID 0.1541 m Based on the calculation method at:D2 Bore Diameter 91.422 mmD2 Bore Diameter 0.091422 mp1 Upstream pressure 17.5 kg/cm2 g Corner taps are assumed.p1 upstream pressure 1817580.345 pa Valid for gases, steam, and vaporsp1 - p2 pressure drop through orifice 2500.000 mm WCp1 - p2 pressure drop through orifice 24516.625 Pap2 downstream pressure 1793063.72 pani kinematic viscosity 1.984564E-06 m2/smi dynamic viscosity 0.000018 Pasrho upstream density 9.07 kg/m3kappa isentropic coefficient 1.32

Intermediate value

V1 upstream velocity 16.65181619 m/sV2 throat velocity 47.3113619 m/sReD upstream Reynolds number 1293001.501e expansion coefficient 0.995367306C coefficient of discharge 0.605093944beta diameter relation D2/D1 0.593264114E Area constant 1.068359891

Final Values

Q volumetric flow rate 0.310568044 m3/sG mass flow rate 2.81685216 kg/sG mass flow rate 10140.66778 kg/hr

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Values need to provided by user in highlighted cellsIterative calculations should be enabled in Excel

Based on the calculation method at:

Corner taps are assumed.Valid for gases, steam, and vapors

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