can steps be shown on the rearrangemnt to obtain eqn for W and D

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
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can steps be shown on the rearrangemnt to obtain eqn for W and D 

2.2.1.2 Overall performance
heat
F, Xf
heat
Figure 14
First, consider the overall inputs and outputs to the system (Figure 14). F, D and Ware flow
rates, usually expressed as moles per second. The compositions are expressed as mole
fractions. Total and component balances for the input and output streams gives:
F =D+W ;
Fx₁ = Dxd +Wxw
(10)
W = F
D, Xd
which, after rearranging, gives:
W, Xw
X₁ - Xd
Xw - Xd
rec =
;
D=F
Xw X₁
Xw-Xd
Sometimes, the 'recovery' is specified.
Dxd
FX₁
(11)
(12)
There are n ideal equilibrium plates, the top plate is labelled n, then n - 1 etc to 1, which is
the reboiler.
Transcribed Image Text:2.2.1.2 Overall performance heat F, Xf heat Figure 14 First, consider the overall inputs and outputs to the system (Figure 14). F, D and Ware flow rates, usually expressed as moles per second. The compositions are expressed as mole fractions. Total and component balances for the input and output streams gives: F =D+W ; Fx₁ = Dxd +Wxw (10) W = F D, Xd which, after rearranging, gives: W, Xw X₁ - Xd Xw - Xd rec = ; D=F Xw X₁ Xw-Xd Sometimes, the 'recovery' is specified. Dxd FX₁ (11) (12) There are n ideal equilibrium plates, the top plate is labelled n, then n - 1 etc to 1, which is the reboiler.
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