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Title: Development of a new model for multiple effect evaporator system
Authors: Khanam, Shabina
Mohanty, Bikash
Published in: Computers and Chemical Engineering
Abstract: A new simplified scalable mathematical model, based on concepts of stream analysis, temperature paths and internal heat exchange, has been developed for synthesis of a multiple effect evaporator systems. In this model, fresh feed is assumed to be composed of product and number of condensate streams, which come out from different effects and these are treated as separate streams. For the present work a septuple effect flat falling film evaporator system, used for concentrating black liquor in an Indian Kraft Pulp and Paper mill, has been considered. This system is being operated under backward sequence with condensate-, feed- and product-flashing as well as steam splitting in first two effects. The set of linear algebraic equations for this model are self-generated through programming and is solved simultaneously using Gaussian Elimination Method with partial pivoting. Results of the present approach are validated with published model and industrial data. © 2010 Elsevier Ltd.
Citation: Computers and Chemical Engineering (2011), 35(10): 1983-1993
Issue Date: 2011
Keywords: Mathematical model
Multiple effect evaporator
Stream analysis
Temperature path
ISSN: 981354
Author Scopus IDs: 23025264900
Author Affiliations: Khanam, S., Department of Chemical Engineering, National Institute of Technology Rourkela, Rourkela 769008, India
Mohanty, B., Department of Chemical Engineering, Indian Institute of Technology Roorkee, Roorkee 247667, India
Corresponding Author: Khanam, S.; Department of Chemical Engineering, National Institute of Technology Rourkela, Rourkela 769008, India; email:
Appears in Collections:Journal Publications [CH]

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