P.15.10 A control valve is used to control the flow of water to a cooling coil. The characteristic type of the valve is equal percentage f(x) = ax-1. At normal conditions; the flowrate is 50 gpm and the pressure drop across the coil (APC) N = 10 psig. At maximum conditions; the flowrate is 150 gpm. At minimum conditions; the flowrate is 25 gpm and the fractional stem movement X = 0.231 Determine: a. The total pressure across the control valve and the coil APT. b. The value of Cy. c. The value of f(x)N- d. The stem position X at normal conditions.
P.15.10 A control valve is used to control the flow of water to a cooling coil. The characteristic type of the valve is equal percentage f(x) = ax-1. At normal conditions; the flowrate is 50 gpm and the pressure drop across the coil (APC) N = 10 psig. At maximum conditions; the flowrate is 150 gpm. At minimum conditions; the flowrate is 25 gpm and the fractional stem movement X = 0.231 Determine: a. The total pressure across the control valve and the coil APT. b. The value of Cy. c. The value of f(x)N- d. The stem position X at normal conditions.
Introduction to Chemical Engineering Thermodynamics
8th Edition
ISBN:9781259696527
Author:J.M. Smith Termodinamica en ingenieria quimica, Hendrick C Van Ness, Michael Abbott, Mark Swihart
Publisher:J.M. Smith Termodinamica en ingenieria quimica, Hendrick C Van Ness, Michael Abbott, Mark Swihart
Chapter1: Introduction
Section: Chapter Questions
Problem 1.1P
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Transcribed Image Text:P.15.10 A control valve is used to control the flow of water to a cooling coil. The characteristic
type of the valve is equal percentage f(x) = ax-1. At normal conditions; the flowrate is
50 gpm and the pressure drop across the coil (APC) N = 10 psig. At maximum conditions;
the flowrate is 150 gpm. At minimum conditions; the flowrate is 25 gpm and the fractional
stem movement X = 0.231
Determine:
a. The total pressure across the control valve and the coil APT.
b. The value of Cy.
c. The value of f(x)N.
d. The stem position X at normal conditions.
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