A Carnot engine operates between two finite heat reservoirs of total heat capacity C t H and
Question:
A Carnot engine operates between two finite heat reservoirs of total heat capacity C tH and CtC
(a) Develop an expression relating TC to TH at any time.
(b) Determine an expression for the work obtained as a function of C tH, CtC , TH , and the initial temperatures TH0 and TC0 .
(c) What is the maximum work obtainable? This corresponds to infinite time, when the reservoirs attain the same temperature.
In approaching this problem, use the differential form of Carnot’s equation,
and a differential energy balance for the engine,
dW − dQC − dQH = 0
Here, QC and QH refer to the reservoirs.
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Related Book For
Introduction To Chemical Engineering Thermodynamics
ISBN: 9781259696527
8th Edition
Authors: J.M. Smith, Hendrick Van Ness, Michael Abbott, Mark Swihart
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