P.15.3 Water is pumped through a heat exchanger and control valve. At normal conditions, the flow rate is 60 gallons per min. The pressure drop across the control valve at the minimum and the maximum flow rate conditions are 144 psia and 64 psia respectively. The coefficient of the valve C₁ = 20. The fractional stem movement at normal condition X = 0.4. Determine: a. The pressure drop across the valve at normal flow rate condition. b. The total pressure across the valve and heat exchanger. c. The fractional opening area f(x) at normal condition and deduce the control valve type.
P.15.3 Water is pumped through a heat exchanger and control valve. At normal conditions, the flow rate is 60 gallons per min. The pressure drop across the control valve at the minimum and the maximum flow rate conditions are 144 psia and 64 psia respectively. The coefficient of the valve C₁ = 20. The fractional stem movement at normal condition X = 0.4. Determine: a. The pressure drop across the valve at normal flow rate condition. b. The total pressure across the valve and heat exchanger. c. The fractional opening area f(x) at normal condition and deduce the control valve type.
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
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Transcribed Image Text:P.15.3 Water is pumped through a heat exchanger and control valve. At normal conditions,
the flow rate is 60 gallons per min. The pressure drop across the control valve at the
minimum and the maximum flow rate conditions are 144 psia and 64 psia respectively. The
coefficient of the valve C₁ = 20. The fractional stem movement at normal condition X = 0.4.
Determine:
a. The pressure drop across the valve at normal flow rate condition.
b. The total pressure across the valve and heat exchanger.
c. The fractional opening area f(x) at normal condition and deduce the control valve type.
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