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Effect of Surfactant on Water Vapor Absorption into Aqueous Lithium Bromide

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dc.contributor.advisor Halder, Prof. Dr. Mihir Ranjan
dc.contributor.author Bari, Md. Abdullah Al
dc.date.accessioned 2018-08-29T04:08:24Z
dc.date.available 2018-08-29T04:08:24Z
dc.date.copyright 2012
dc.date.issued 2012-09
dc.identifier.other ID 0000000
dc.identifier.uri http://hdl.handle.net/20.500.12228/420
dc.description This thesis is submitted to the Department of Mechanical Engineering, Khulna University of Engineering & Technology in partial fulfillment of the requirements for the degree of Master of Science in Mechanical Engineering, Septmber 2012. en_US
dc.description Cataloged from PDF Version of Thesis.
dc.description Includes bibliographical references (pages 61-67).
dc.description.abstract The objective of the present study is to investigate the absorbing characteristics of water vapor in LiBr-H2O (weak solution) and also the enhancement of absorption in presence of a surfactant in the absorber of a vapor absorption refrigeration system. It reveals from literature that the rate of absorption enhances for marangoni convection occurs due to inclusion of surfactant in the weak solution. An experimental setup for testing the effect of surfactant on the absorption of water vapor in LiBr-H2O solution in a Vapor Absorption Refrigeration (VAR) system is designed and constructed. The experiments were performed with four different concentrations of LiBr such as 45%, 50%, 55% and 60% in LiBr-H2O solution by weight and three different surfactant concentrations such as 100, 200 and 300 ppm in the weak solution. 2-ethyl-l-hexanol was used as surfactant in this experiment. From the experimental results it can be said that, the absorption of water is found to increase with the increase of concentration of LiBr in the weak solution of LiBr-H2O.The addition of surfactant enhances the absorption of water vapor. The maximum enhancement of water vapor absorption is obtained when surfactant concentration is 300 ppm and LiBr concentration is 50% in LiBr-H2O weak solution by weight. Also the experimental results agree with the experimental results of Jung [68] et al. and Kim [65] et al. closely (the deviations of enhancement of present work are about 6.3% and 6.6% less than that work of Jung et al. and Kim et al. respectively). en_US
dc.description.statementofresponsibility Md. Abdullah Al Bari
dc.format.extent 67 pages
dc.language.iso en_US en_US
dc.publisher Khulna University of Engineering & Technology (KUET), Khulna, Bangladesh. en_US
dc.rights Khulna University of Engineering & Technology (KUET) thesis/dissertation/internship reports are protected by copyright. They may be viewed from this source for any purpose, but reproduction or distribution in any format is prohibited without written permission.
dc.subject Water Vapor Absorption en_US
dc.subject Aqueous Lithium Bromide en_US
dc.subject Refrigeration System en_US
dc.title Effect of Surfactant on Water Vapor Absorption into Aqueous Lithium Bromide en_US
dc.type Thesis en_US
dc.description.degree Master of Science in Mechanical Engineering
dc.contributor.department Department of Mechanical Engineering


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