Answered: R. Process P2 furnace Ra P1 Pf…

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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Question

Two surge tanks are used to dampen pressure fluctuations caused by erratic operations of a large air compressor. (a)If the discharge pressure of the compressor is P_d(t)and the operating pressure of the furnace is P_f(constant), develop a dynamic model for the pressures in the two surge tanks as well as for the air mass flows at points a, b, and c. You may assumethat the valve resistances are constant, that the valve flow characteristics are linear, for example,wb=(P1−P2)/R_b,that the surge processes operate isothermally, and that the ideal gas law holds.(b)How would you modify your model if the surge tanks oper-ated adiabatically? What if the ideal gas law were not a good approximation?

R.
Process
P2
furnace
Ra
P1
Pf
Compressor
Pa
Air
V2
Vị
We
supply
Wa

Definition Definition Law that is the combined form of Boyle's Law, Charles's Law, and Avogadro's Law. This law is obeyed by all ideal gas. Boyle's Law states that pressure is inversely proportional to volume. Charles's Law states that volume is in direct relation to temperature. Avogadro's Law shows that volume is in direct relation to the number of moles in the gas. The mathematical equation for the ideal gas law equation has been formulated by taking all the equations into account: PV=nRT Where P = pressure of the ideal gas V = volume of the ideal gas n = amount of ideal gas measured in moles R = universal gas constant and its value is 8.314 J.K-1mol-1 T = temperature

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