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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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1. Specify the proper fail-safe action for the control valves in the following applications. Specify either fail-open or fail-close.

(a) A flammable solvent is heated by steam in a heat exchanger. The control valve manipulates the steam flow rate to the exchanger.
(b) A control valve manipulates the flow rate of reactant to a reactor vessel. The reaction is exothermic.
(c) A control valve manipulates the flow of natural gas (combustible) to a furnace. Another control valve manipulates the flow of combustion air to the same furnace.

Book: Process Dynamics and Control, Third Edition or Fourth Edition, by D. E. Seborg, T. F. Edgar, D. A. Mellichamp, F. J. Doyle III, John Wiley & Sons, Inc, 2011

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