By increasing the downstream pressure to 125.5 psia, calculate the valve coefficient, Cv and valve size for this service. Verify your selection of valve size. Table Q4 shows service conditions of the process.Table Q4LiquidTemperatureUpstream pressure, P1Downstream pressure, P2Flow rate, QVapor pressure, PvSpecific gravity, SGPipeline sizeAmmonia20 °F149.7 psia64 psia450 gal/hr45.6 psia0.654 in (ANSI Class 300)ValveRotary Disc (90° open)Flow characteristicLinear

Answered: By increasing the downstream pressure…

By increasing the downstream pressure to 125.5 psia, calculate the valve coefficient, Cv and valve size for this service. Verify your selection of valve size.

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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Concept explainers

Pressure Vessels

The term pressure vessel refers to a closed container that contains gas or liquid at a different pressure than environment pressure. The pressure vessels have a wide scale of applications in our day-to-day lives and other industrial places. Some common examples of pressure vessels are gas cylinders, autoclaves, compressor vessels, etc.

Question

By increasing the downstream pressure to 125.5 psia, calculate the valve coefficient, Cv and valve size for this service. Verify your selection of valve size.

Table Q4 shows service conditions of the process.
Table Q4
Liquid
Temperature
Upstream pressure, P1
Downstream pressure, P2
Flow rate, Q
Vapor pressure, Pv
Specific gravity, SG
Pipeline size
Ammonia
20 °F
149.7 psia
64 psia
450 gal/hr
45.6 psia
0.65
4 in (ANSI Class 300)
Valve
Rotary Disc (90° open)
Flow characteristic
Linear

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