Simulation of membrane distillation modules for desalination by developing user's model on Aspen Plus platform

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Title:	Simulation of membrane distillation modules for desalination by developing user's model on Aspen Plus platform
Authors:	Chang, Hsuan;Liau, Jung-Shing;Ho, Chii-Dong;Wang, Wei-Hong
Contributors:	淡江大學化學工程與材料工程學系
Keywords:	Membrane distillation;Simulation;Optimization;Response surface method;Direct contact membrane distillation;Air gap membrane distillation
Date:	2009-11-30
Issue Date:	2011-10-13 22:39:14 (UTC+8)
Publisher:	Amsterdam: Elsevier BV
Abstract:	This paper presents a simulation study of direct contact membrane distillation (DCMD) and air gap membrane distillation (AGMD) for desalination. Simulation models are built on Aspen Plus® platform as user defined unit operations for these two types of modules, respectively. Large scale modules for practical industrial applications are simulated and studied for the effects of design and operation variables, as well as the importance of heat and mass transfers of each phase. For each type of modules with heat recovery design, the response surface method (RSM) is applied to develop the performance-variables quadratic model, followed by the multivariable optimization. Optimal designs can realize separation efficiencies, defined as the ratio of water produced to the feed, of 8.2% and 5.8% for DCMD and AGMD, respectively.
Relation:	Desalination 249(1), pp.380–387
DOI:	10.1016/j.desal.2008.11.026
Appears in Collections:	[Graduate Institute & Department of Chemical and Materials Engineering] Journal Article

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