Study of falling film evaporation process in a vapor compression desalination system

An analysis of falling fi lm evaporation of saltwater has been carried out for a vapor compression desalination pilot plant. Detailed modeling and simulation have been used to fi nd the temperature and concentration variation inside the fi lm on a vertical tube evaporator. The heat and mass trans...

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Main Authors: Bahar, Rubina, Hawlader, Mohammad Nurul Alam
Format: Article
Language:English
Published: Desalination Publications 2012
Subjects:
Online Access:http://irep.iium.edu.my/26684/
http://irep.iium.edu.my/26684/
http://irep.iium.edu.my/26684/
http://irep.iium.edu.my/26684/1/DWT_Rubina21_7859_Balaban.pdf
id iium-26684
recordtype eprints
spelling iium-266842014-01-13T07:21:02Z http://irep.iium.edu.my/26684/ Study of falling film evaporation process in a vapor compression desalination system Bahar, Rubina Hawlader, Mohammad Nurul Alam T175 Industrial research. Research and development An analysis of falling fi lm evaporation of saltwater has been carried out for a vapor compression desalination pilot plant. Detailed modeling and simulation have been used to fi nd the temperature and concentration variation inside the fi lm on a vertical tube evaporator. The heat and mass transfer phenomenon were analyzed using basic conservation equations. To evaluate the performance of the rig, three operating variables were considered, which included the top brine temperature (TBT), compressor speed and brine concentration. Performance of the rig was dominated by compressor speed and top brine temperature. The highest distillate production rate experimentally obtained was 20 kg/h for the compressor speed of 2400 rpm at a TBT of 102oC. From the simulation, it was found that the feed concentration rapidly increased near the falling fi lm-vapor interface. The numerical results have been compared with the experimental values in terms of distillate produced, and good agreement was found. Desalination Publications 2012-02 Article PeerReviewed application/pdf en http://irep.iium.edu.my/26684/1/DWT_Rubina21_7859_Balaban.pdf Bahar, Rubina and Hawlader, Mohammad Nurul Alam (2012) Study of falling film evaporation process in a vapor compression desalination system. Desalination and Water Treatment, 39 (1-3). pp. 21-32. ISSN 1944-3994 (O), 1944-3986 (P) http://www.tandfonline.com/doi/abs/10.1080/19443994.2012.669154#preview 10.1080/19443994.2012.669154
repository_type Digital Repository
institution_category Local University
institution International Islamic University Malaysia
building IIUM Repository
collection Online Access
language English
topic T175 Industrial research. Research and development
spellingShingle T175 Industrial research. Research and development
Bahar, Rubina
Hawlader, Mohammad Nurul Alam
Study of falling film evaporation process in a vapor compression desalination system
description An analysis of falling fi lm evaporation of saltwater has been carried out for a vapor compression desalination pilot plant. Detailed modeling and simulation have been used to fi nd the temperature and concentration variation inside the fi lm on a vertical tube evaporator. The heat and mass transfer phenomenon were analyzed using basic conservation equations. To evaluate the performance of the rig, three operating variables were considered, which included the top brine temperature (TBT), compressor speed and brine concentration. Performance of the rig was dominated by compressor speed and top brine temperature. The highest distillate production rate experimentally obtained was 20 kg/h for the compressor speed of 2400 rpm at a TBT of 102oC. From the simulation, it was found that the feed concentration rapidly increased near the falling fi lm-vapor interface. The numerical results have been compared with the experimental values in terms of distillate produced, and good agreement was found.
format Article
author Bahar, Rubina
Hawlader, Mohammad Nurul Alam
author_facet Bahar, Rubina
Hawlader, Mohammad Nurul Alam
author_sort Bahar, Rubina
title Study of falling film evaporation process in a vapor compression desalination system
title_short Study of falling film evaporation process in a vapor compression desalination system
title_full Study of falling film evaporation process in a vapor compression desalination system
title_fullStr Study of falling film evaporation process in a vapor compression desalination system
title_full_unstemmed Study of falling film evaporation process in a vapor compression desalination system
title_sort study of falling film evaporation process in a vapor compression desalination system
publisher Desalination Publications
publishDate 2012
url http://irep.iium.edu.my/26684/
http://irep.iium.edu.my/26684/
http://irep.iium.edu.my/26684/
http://irep.iium.edu.my/26684/1/DWT_Rubina21_7859_Balaban.pdf
first_indexed 2023-09-18T20:39:43Z
last_indexed 2023-09-18T20:39:43Z
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