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Please use this identifier to cite or link to this item: http://repository.iitr.ac.in/handle/123456789/2475
Title: Simulation of flat falling film evaporator system for concentration of black liquor
Authors: Bhargava R.
Khanam S.
Mohanty B.
Ray A.K.
Published in: Computers and Chemical Engineering
Abstract: In the present investigation, a non-linear mathematical model is developed for the analysis of Septuple effect flat falling film evaporator (SEFFFE) system used for concentrating black liquor in a nearby paper mill. This model is capable of simulating process of evaporation considering variations in boiling point rise (?), overall heat transfer coefficient (U), heat loss (Qloss), flow sequences, liquor/steam splitting, feed, product and condensate flashing, vapor bleeding and physico-thermal properties of the liquor. Based on mass and energy balance around an effect a cubic polynomial is developed and solved repeatedly in a predetermined sequence using generalized cascade algorithm. For development of empirical correlations for ?, U and Qloss, plant data have been collected from SEFFFE system. These correlations compute ?, U and Qloss within average absolute errors of 2.4%, 10% and 33%, respectively, when their results are compared with the plant data. © 2008 Elsevier Ltd. All rights reserved.
Citation: Computers and Chemical Engineering (2008), 32(12): 3213-3223
URI: https://doi.org/10.1016/j.compchemeng.2008.05.012
http://repository.iitr.ac.in/handle/123456789/2475
Issue Date: 2008
Keywords: Boiling point rise
Empirical correlations
Flat falling film evaporator
Heat Loss
Non-linear model
Overall heat transfer coefficient
ISSN: 981354
Author Scopus IDs: 35856519800
23025264900
57211010484
34768855100
Author Affiliations: Bhargava, R., Department of Chemical Engineering, Indian Institute of Technology Roorkee, Roorkee, 247 667, India
Khanam, S., Department of Chemical Engineering, National Institute of Technology Rourkela, Rourkela, 769 008, India
Mohanty, B., Department of Chemical Engineering, Indian Institute of Technology Roorkee, Roorkee, 247 667, India
Ray, A.K., Department of Paper Technology, Indian Institute of Technology Roorkee, Roorkee, 247 667, India
Corresponding Author: Khanam, S.; Department of Chemical Engineering, National Institute of Technology Rourkela, Rourkela, 769 008, India; email: shabinahai@gmail.com
Appears in Collections:Journal Publications [CH]

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