i)Calculate the pressure drop for this service condition.ii) Assess either choked flow occurs or not. If chocked flow occurs, suggest how to prevent it?iii) Analyze either cavitation phenomena occurs or not?iv) By increasing the downstream pressure to 125.5 psia, calculate the valve coefficient, Cy andvalve size for this service. Verify your selection of valve size. Table Q3 shows service conditions of the process.Table Q3LiquidTemperatureUpstream pressure, P1Downstream pressure, P2Flow rate, QAmmonia20 °F149.7 psia64 psia450 gal/hr45.6 psiaVapor pressure, PvSpecific gravity, SGPipeline sizeValve0.654 in (ANSI Class 300)Rotary Disc (90° open)Flow characteristicLinear

Note: Since you have posted a question with multiple sub-parts, we will solve first three sub- parts…

i) Calculate the pressure drop for this service condition. ii) Assess either choked flow occurs or not. If chocked flow occurs, suggest how to prevent it? iii) Analyze either cavitation phenomena occurs or not?

i) Calculate the pressure drop for this service condition. ii) Assess either choked flow occurs or not. If chocked flow occurs, suggest how to prevent it? iii) Analyze either cavitation phenomena occurs or not?

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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Question

i)
Calculate the pressure drop for this service condition.
ii) Assess either choked flow occurs or not. If chocked flow occurs, suggest how to prevent it?
iii) Analyze either cavitation phenomena occurs or not?
iv) By increasing the downstream pressure to 125.5 psia, calculate the valve coefficient, Cy and
valve size for this service. Verify your selection of valve size.

Table Q3 shows service conditions of the process.
Table Q3
Liquid
Temperature
Upstream pressure, P1
Downstream pressure, P2
Flow rate, Q
Ammonia
20 °F
149.7 psia
64 psia
450 gal/hr
45.6 psia
Vapor pressure, Pv
Specific gravity, SG
Pipeline size
Valve
0.65
4 in (ANSI Class 300)
Rotary Disc (90° open)
Flow characteristic
Linear

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