Transport analysis of an Air Gap Membrane Distillation (AGMD) process
Membrane distillation (MD) desalination is an emerging technology for fresh water production. This process incorporates phase change and transport of vapour through a hydrophobic membrane due to difference in vapour pressure across the membrane. The results from experimental studies and the 1 dimens...
| Main Authors: | , , , |
|---|---|
| Format: | Proceeding Paper |
| Language: | English |
| Published: |
2011
|
| Subjects: | |
| Online Access: | http://irep.iium.edu.my/4092/1/Rubina_Paper_for_EDS_conf_China%5B1%5D.pdf |
| _version_ | 1825644503999971328 |
|---|---|
| author | Hawlader, Mohammad Nurul Alam Bahar, Rubina Ng, K. C. Loh, Jian Wei Stanley |
| author_facet | Hawlader, Mohammad Nurul Alam Bahar, Rubina Ng, K. C. Loh, Jian Wei Stanley |
| author_sort | Hawlader, Mohammad Nurul Alam |
| collection | IIUM |
| description | Membrane distillation (MD) desalination is an emerging technology for fresh water production. This process incorporates phase change and transport of vapour through a hydrophobic membrane due to difference in vapour pressure across the membrane. The results from experimental studies and the 1 dimensional transport analyses of the heat and mass transfer processes on an air gap MD (AGMD) unit are presented in this paper. The effects of different operating variables including feed and coolant temperatures, air gap, membrane support mesh size, feed concentration and feed and coolant flow rates were investigated. Mass transport through membrane, membrane support, air gap and condensation on the coolant plate has been analysed and expression for global mass transfer coefficient has been derived. The maximum distillate flux achieved was 5.11 kg/m2hr at a feed temperature of 60oC, coolant temperature of 10oC and an air gap of 2.5 mm. Per kW of energy input a 2.32 kg/m2hr flux was obtained. Feed temperature and air gap width were found to have significant influence on the performance of the membranes. |
| first_indexed | 2024-03-05T22:33:47Z |
| format | Proceeding Paper |
| id | oai:generic.eprints.org:4092 |
| institution | International Islamic University Malaysia |
| language | English |
| last_indexed | 2024-03-05T22:33:47Z |
| publishDate | 2011 |
| record_format | dspace |
| spelling | oai:generic.eprints.org:40922011-10-19T02:32:11Z http://irep.iium.edu.my/4092/ Transport analysis of an Air Gap Membrane Distillation (AGMD) process Hawlader, Mohammad Nurul Alam Bahar, Rubina Ng, K. C. Loh, Jian Wei Stanley TJ163.26 Energy conservation Membrane distillation (MD) desalination is an emerging technology for fresh water production. This process incorporates phase change and transport of vapour through a hydrophobic membrane due to difference in vapour pressure across the membrane. The results from experimental studies and the 1 dimensional transport analyses of the heat and mass transfer processes on an air gap MD (AGMD) unit are presented in this paper. The effects of different operating variables including feed and coolant temperatures, air gap, membrane support mesh size, feed concentration and feed and coolant flow rates were investigated. Mass transport through membrane, membrane support, air gap and condensation on the coolant plate has been analysed and expression for global mass transfer coefficient has been derived. The maximum distillate flux achieved was 5.11 kg/m2hr at a feed temperature of 60oC, coolant temperature of 10oC and an air gap of 2.5 mm. Per kW of energy input a 2.32 kg/m2hr flux was obtained. Feed temperature and air gap width were found to have significant influence on the performance of the membranes. 2011-06-20 Proceeding Paper PeerReviewed application/pdf en http://irep.iium.edu.my/4092/1/Rubina_Paper_for_EDS_conf_China%5B1%5D.pdf Hawlader, Mohammad Nurul Alam and Bahar, Rubina and Ng, K. C. and Loh, Jian Wei Stanley (2011) Transport analysis of an Air Gap Membrane Distillation (AGMD) process. In: Qingdao International Conference 2011---on Desalination and Water Reuse, June 20-23, 2011, Qingdao, China. (Unpublished) http://www.cda-apdwr2009.com/en/newsdetail.asp?unid=565 |
| spellingShingle | TJ163.26 Energy conservation Hawlader, Mohammad Nurul Alam Bahar, Rubina Ng, K. C. Loh, Jian Wei Stanley Transport analysis of an Air Gap Membrane Distillation (AGMD) process |
| title | Transport analysis of an Air Gap Membrane Distillation (AGMD) process |
| title_full | Transport analysis of an Air Gap Membrane Distillation (AGMD) process |
| title_fullStr | Transport analysis of an Air Gap Membrane Distillation (AGMD) process |
| title_full_unstemmed | Transport analysis of an Air Gap Membrane Distillation (AGMD) process |
| title_short | Transport analysis of an Air Gap Membrane Distillation (AGMD) process |
| title_sort | transport analysis of an air gap membrane distillation agmd process |
| topic | TJ163.26 Energy conservation |
| url | http://irep.iium.edu.my/4092/1/Rubina_Paper_for_EDS_conf_China%5B1%5D.pdf |
| work_keys_str_mv | AT hawladermohammadnurulalam transportanalysisofanairgapmembranedistillationagmdprocess AT baharrubina transportanalysisofanairgapmembranedistillationagmdprocess AT ngkc transportanalysisofanairgapmembranedistillationagmdprocess AT lohjianweistanley transportanalysisofanairgapmembranedistillationagmdprocess |