Consider a liquid flow system that includes a sealed tank carrying non-condensable gas over the liquid as shown in the figure below. Derive an unsteady state model connecting the fluid level h to the input flow rate qi. Is the system operation independent of the ambient pressure Pa? What would be the case for a system open to the atmosphere? You can make the following assumptions; (i) Gas obeys the ideal gas law. There is a fixed amount of mg / M mol gas in the tank. (ii) The study is isothermal. (iii) Square root relation is valid for flow through valve

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
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Consider a liquid flow system that includes a sealed tank carrying non-condensable gas over the liquid as shown in the figure below. Derive an unsteady state model connecting the fluid level h to the input flow rate qi. Is the system operation independent of the ambient pressure Pa? What would be the case for a system open to the atmosphere?
You can make the following assumptions;
(i) Gas obeys the ideal gas law. There is a fixed amount of mg / M mol gas in the tank.
(ii) The study is isothermal.
(iii) Square root relation is valid for flow through valve

 

Ра
Pg
qi
H
h
Cv
Cross-sectional
A
area
Transcribed Image Text:Ра Pg qi H h Cv Cross-sectional A area
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