Modeling and dynamic simulation of mixed feed multi-effect evaporators in paper industry

被引：43

作者：

Kumar, Deepak ^{[1
,2
]}

Kumar, Vivek ^{[2
]}

Singh, V. P. ^{[2
]}

机构：

[1] Galgotias Univ, Dept Math, Greater Noida, UP, India

[2] Indian Inst Technol Roorkee, Dept Paper Technol, Uk, India

来源：

APPLIED MATHEMATICAL MODELLING | 2013年 / 37卷 / 1-2期

关键词：

Multiple effect evaporator; Mixed feed; Fsolve; Ode45; Boiling point rise; Dynamic response; MULTIPLE-EFFECT EVAPORATOR; DISTRIBUTED-PARAMETER MODEL; FALLING-FILM EVAPORATORS; BLACK LIQUOR; STEADY-STATE; PERFORMANCE; BEHAVIOR; SYSTEM;

D O I：

10.1016/j.apm.2012.02.039

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

A wide range of mathematical models for multiple effect evaporators in process industry including paper industry are well reported in the literature but not so extensive work on the dynamic behavior of MEE system is available in the literature. In the present study dynamic behavior of multi-effect evaporator system of a paper industry is obtained by disturbing the feed flow rate, feed concentration, live steam temperature and feed temperature. For this purpose an unsteady-state model for the Multi-effect evaporator system is developed. Each effect in the process is represented by a number of variables which are related by the energy and material balance equations for the feed, product and vapor flow. A generalized mathematical model which could be applied to any number of effects and all kinds of feeding arrangements like forward feed, backward feed, mixed feed and spilt feed in the MEE system with simple modifications was finally obtained. Finally model for mixed feed sextuple effect falling film evaporators system was solved using MATLAB. For the steady state and dynamic simulation the 'fsolve' and 'ode45' solvers in MATIAB source code is used respectively. (c) 2012 Elsevier Inc. All rights reserved.

引用

页码：384 / 397

页数：14

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