Experimental study on a multi-stage air gap membrane distillation (AGMD) unit

Membrane distillation (MD) is a separation process that involves vapour transport through a hydrophobic membrane. The evaporation is caused by the partial pressure difference between a hot fluid and cold fluid/surface. In this study, an air gap MD (AGMD) process is utilized to produce freshwater fro...

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Main Authors: Bahar, Rubina, Hawlader, Mohammad Nurul Alam, Ng, K. C., Yee, Jiun Haw
Format: Article
Language:English
Published: UTM Press 2014
Subjects:
Online Access:http://irep.iium.edu.my/39101/
http://irep.iium.edu.my/39101/
http://irep.iium.edu.my/39101/
http://irep.iium.edu.my/39101/1/jurnal_teknologi.pdf
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spelling iium-391012017-09-06T07:38:55Z http://irep.iium.edu.my/39101/ Experimental study on a multi-stage air gap membrane distillation (AGMD) unit Bahar, Rubina Hawlader, Mohammad Nurul Alam Ng, K. C. Yee, Jiun Haw TD201 Water supply for domestic and industrial purposes TJ163.26 Energy conservation Membrane distillation (MD) is a separation process that involves vapour transport through a hydrophobic membrane. The evaporation is caused by the partial pressure difference between a hot fluid and cold fluid/surface. In this study, an air gap MD (AGMD) process is utilized to produce freshwater from saline solution. A multi-stage AGMD unit with 0.45 micro-m pore size Polyvinylidene Fluoride (PVDF) membranes is built and experiments have been carried out with different operating variables including feed temperature, coolant temperature, air gap width and feed inlet concentration. A maximum of 12.9 kg/m2 of distillate flux was obtained per kWh energy input from the multi-stage MD unit while for a previously built single-stage MD unit, the highest water/power ratio obtained was only 2.3 kg /m2 kWh. This variation indicates that multistaging is necessary for efficient energy use in MD system. UTM Press 2014-01 Article PeerReviewed application/pdf en http://irep.iium.edu.my/39101/1/jurnal_teknologi.pdf Bahar, Rubina and Hawlader, Mohammad Nurul Alam and Ng, K. C. and Yee, Jiun Haw (2014) Experimental study on a multi-stage air gap membrane distillation (AGMD) unit. Jurnal Teknologi, 69 (9). pp. 89-92. ISSN 2180–3722 (O), 0127–9696 (P) http://www.jurnalteknologi.utm.my/index.php/jurnalteknologi/issue/view/143 DOI: http://dx.doi.org/10.11113/jt.v69.3403
repository_type Digital Repository
institution_category Local University
institution International Islamic University Malaysia
building IIUM Repository
collection Online Access
language English
topic TD201 Water supply for domestic and industrial purposes
TJ163.26 Energy conservation
spellingShingle TD201 Water supply for domestic and industrial purposes
TJ163.26 Energy conservation
Bahar, Rubina
Hawlader, Mohammad Nurul Alam
Ng, K. C.
Yee, Jiun Haw
Experimental study on a multi-stage air gap membrane distillation (AGMD) unit
description Membrane distillation (MD) is a separation process that involves vapour transport through a hydrophobic membrane. The evaporation is caused by the partial pressure difference between a hot fluid and cold fluid/surface. In this study, an air gap MD (AGMD) process is utilized to produce freshwater from saline solution. A multi-stage AGMD unit with 0.45 micro-m pore size Polyvinylidene Fluoride (PVDF) membranes is built and experiments have been carried out with different operating variables including feed temperature, coolant temperature, air gap width and feed inlet concentration. A maximum of 12.9 kg/m2 of distillate flux was obtained per kWh energy input from the multi-stage MD unit while for a previously built single-stage MD unit, the highest water/power ratio obtained was only 2.3 kg /m2 kWh. This variation indicates that multistaging is necessary for efficient energy use in MD system.
format Article
author Bahar, Rubina
Hawlader, Mohammad Nurul Alam
Ng, K. C.
Yee, Jiun Haw
author_facet Bahar, Rubina
Hawlader, Mohammad Nurul Alam
Ng, K. C.
Yee, Jiun Haw
author_sort Bahar, Rubina
title Experimental study on a multi-stage air gap membrane distillation (AGMD) unit
title_short Experimental study on a multi-stage air gap membrane distillation (AGMD) unit
title_full Experimental study on a multi-stage air gap membrane distillation (AGMD) unit
title_fullStr Experimental study on a multi-stage air gap membrane distillation (AGMD) unit
title_full_unstemmed Experimental study on a multi-stage air gap membrane distillation (AGMD) unit
title_sort experimental study on a multi-stage air gap membrane distillation (agmd) unit
publisher UTM Press
publishDate 2014
url http://irep.iium.edu.my/39101/
http://irep.iium.edu.my/39101/
http://irep.iium.edu.my/39101/
http://irep.iium.edu.my/39101/1/jurnal_teknologi.pdf
first_indexed 2023-09-18T20:56:10Z
last_indexed 2023-09-18T20:56:10Z
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