(Ebook) Multistage Separation Processes, Fourth Edition by Leonard M Naphtali Affiliation: Polytechnic Institute of Brooklyn, Brooklyn, New York; Donald P Sandholm Affiliation: Polytechnic Institute of Brooklyn, Brooklyn, New York ISBN 9781482230543, 9781482230574, 1482230542, 1482230577

(Ebook) Multistage Separation Processes, Fourth Edition by Leonard M Naphtali Affiliation: Polytechnic Institute of Brooklyn, Brooklyn, New York; Donald P Sandholm Affiliation: Polytechnic Institute of Brooklyn, Brooklyn, New York ISBN 9781482230543, 9781482230574, 1482230542, 1482230577

A new approach to separation calculations has been developed which has many practical advantages. The equations of conservation of mass and energy and of equilibrium are grouped by stage and then linearized. The resulting set of equations has a block-tridiagonal structure which permits solution by a simple technique. Thus a new way to apply the Newton-Raphson technique to separation calculations is devised. The method has been tried on a number of problems chosen to exhibit characteristics which cause other solution technique to fail. Most problems are solved with ten iterations or less.
Abstract: A new approach to separation calculations has been developed which has many practical advantages. The equations of conservation of mass and energy and of equilibrium are grouped by stage and then linearized. The resulting set of equations has a block-tridiagonal structure which permits solution by a simple technique. Thus a new way to apply the Newton-Raphson technique to separation calculations is devised. The method has been tried on a number of problems chosen to exhibit characteristics which cause other solution technique to fail. Most problems are solved with ten iterations or less