L9 - Ponchon Savarit Method H(y) H H(x) Equilibrium line By...

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Ponchon – Savarit Method H y x y=x Equilibrium line H(x) H(y) Xe Ye • By using the Hxy diagram and the y = x line, the equilibrium curve can be constructed on the y vs. x diagram
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Ponchon – Savarit Method H y x y=x Eqm. Curve H(x) H(y) E F D A C B y n+1 x d x n (x D, H D ) (x n, y n+1 ) AC BC x x y x V L n D n D n n = = + + 1 1 D q c CE DE H Q H Q V L n x n y n n = = + + , 1 , 1 ' ' D q H Q c D + = ' , 1 + = = n n V L CE DE AC BC Because A, F & E lie on a straight line, i.e., lie on a straight line. ) ' , ( ), , ( ), , ( 1 , 1 , Q x H y H x D n y n n x n + +
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Ponchon – Savarit Method tie line •The rectifying operating line can be drawn by choosing a set of x n ’s and finding the corresponding y n+1 ’s from the Hxy diagram. •Another way: Computer (x n , y n+1 ) tray by tray (for a total condenser): •Find H x 0 , H y1 @ x D •V 1 is in equilibrium with L 1 by following a tie-line. •Draw a straight line between Q’ and H
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This note was uploaded on 04/15/2008 for the course CHEE 3462 taught by Professor Mohanty during the Spring '07 term at University of Houston.

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L9 - Ponchon Savarit Method H(y) H H(x) Equilibrium line By...

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