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In a spray painting plant, N2 (M = 28 kg/kmol, u = 1.78 - 10-5Pa s) is used as atomizing gas for the spray painting guns. The storage tank A (volume VA = 5 m³) of the department is periodically filled withdrawing the gas from an different storage tank (B) of larger volume maintained at Pg = 25 atm (constant). The line con- necting tanks B and A is L 50 m long and pipe diam- eter is D = 0.05 m. 1. Calculate the gas flow rate transferred along the line when the shut-off valve between the two tanks is opened (initial pressure in tank A equal to atmo- spheric pressure); hypothesize isothermal transfor- mations for the gas (T = 293 K) and friction factor equal to f = 0.003; 2. Calculate the mass transferred from B to A to load the tank up to a pressure PA = 15 atm;

In a spray painting plant, N2 (M = 28 kg/kmol, u = 1.78 - 10-5Pa s) is used as atomizing gas for the spray painting guns. The storage tank A (volume VA = 5 m³) of the department is periodically filled withdrawing the gas from an different storage tank (B) of larger volume maintained at Pg = 25 atm (constant). The line con- necting tanks B and A is L 50 m long and pipe diam- eter is D = 0.05 m. 1. Calculate the gas flow rate transferred along the line when the shut-off valve between the two tanks is opened (initial pressure in tank A equal to atmo- spheric pressure); hypothesize isothermal transfor- mations for the gas (T = 293 K) and friction factor equal to f = 0.003; 2. Calculate the mass transferred from B to A to load the tank up to a pressure PA = 15 atm;

Introduction to Chemical Engineering Thermodynamics
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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In a spray painting plant, N2 (M = 28 kg/kmol, u = 1.78 · 10-5Pa s) is used as atomizing gas for the spray painting guns. The storage tank A (volume VA = 5 m3) of the department is periodically filled withdrawing the gas from an different storage tank (B) of larger volume maintained at PB = 25 atm (constant). The line con- necting tanks B and A is L = 50 m long and pipe diam- eter is D = 0.05 m. 1. Calculate the gas flow rate transferred along the line when the shut-off valve between the two tanks is opened (initial pressure in tank A equal to atmo- spheric pressure); hypothesize isothermal transfor- mations for the gas (T = 293 K) and friction factor equal to f = 0.003; 2. Calculate the mass transferred from B to A to load the tank up to a pressure PA = 15 atm;
Transcribed Image Text:In a spray painting plant, N2 (M = 28 kg/kmol, u = 1.78 · 10-5Pa s) is used as atomizing gas for the spray painting guns. The storage tank A (volume VA = 5 m3) of the department is periodically filled withdrawing the gas from an different storage tank (B) of larger volume maintained at PB = 25 atm (constant). The line con- necting tanks B and A is L = 50 m long and pipe diam- eter is D = 0.05 m. 1. Calculate the gas flow rate transferred along the line when the shut-off valve between the two tanks is opened (initial pressure in tank A equal to atmo- spheric pressure); hypothesize isothermal transfor- mations for the gas (T = 293 K) and friction factor equal to f = 0.003; 2. Calculate the mass transferred from B to A to load the tank up to a pressure PA = 15 atm;
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