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Simulation of vacuum membrane distillation process for desalination with Aspen Plus
Cao, W.
Cao, W.
Publication Date
2014-12-23
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Ā© 2014 American Chemical Society. Full-text reproduced in accordance with the publisherās self-archiving policy.
Peer-Reviewed
Yes
Open Access status
openAccess
Accepted for publication
2014-12-23
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Abstract
This paper presents a simulation study of vacuum membrane distillation (VMD) for desalination. A simulation model was built on Aspen PlusĀ® platform as user defined unit operation for VMD module. A simplified mathematical model was verified and the analysis of process performance based on simulation was also carried out. Temperature and concentration polarization effects are significant in the conditions of higher feed temperature and/or vacuum pressure. The sign of difference of the vapour pressures between at the membrane interfaces, is a pointer of the vacuum pressure threshold. Increasing the vacuum pressure at lower feed temperature is an effective way to increase the permeate flux and reduce the energy consumption simultaneously.
Version
Accepted manuscript
Citation
Cao W and Mujtaba IM (2014) Simulation of vacuum membrane distillation process for desalination with Aspen Plus. Industrial and Engineering Chemistry Research. 54(2): 672-680.
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Article