Nitrogen flows at steady state through a horizontal, insulated pipe with inside diam- eter of 1.5(in). A pressure drop results from flow through a partially opened valve. Just upstream from the valve the pressure is 100(psia), the temperature is 120(°F), and the average velocity is 20(ft)-s-!. If the pressure just downstream from the valve is 20(psia), what is the temperature? Assume for air that PV/T is constant, Cy= (5/2)R, and Cp = (7/2)R. (Values for R, the ideal gas constant, are given in App. A.) %3D
Nitrogen flows at steady state through a horizontal, insulated pipe with inside diam- eter of 1.5(in). A pressure drop results from flow through a partially opened valve. Just upstream from the valve the pressure is 100(psia), the temperature is 120(°F), and the average velocity is 20(ft)-s-!. If the pressure just downstream from the valve is 20(psia), what is the temperature? Assume for air that PV/T is constant, Cy= (5/2)R, and Cp = (7/2)R. (Values for R, the ideal gas constant, are given in App. A.) %3D
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:2.28. Nitrogen flows at steady state through a horizontal, insulated pipe with inside diam-
eter of 1.5(in). A pressure drop results from flow through a partially opened valve.
Just upstream from the valve the pressure is 100(psia), the temperature is 120(°F), and
the average velocity is 20(ft)-s-!. If the pressure just downstream from the valve is
20(psia), what is the temperature? Assume for air that PV/T is constant, Cy = (5/2)R,
and Cp = (7/2)R. (Values for R, the ideal gas constant, are given in App. A.)
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