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Conventional generator in lithium bromide absorption refrigeration system is too bulky and heavy to be fitted into small scale device, and the temperature of the driving heater in the generator seems much higher than low grade energy such as regenerative energy or waste heat energy. In this paper, desorption of aqueous lithium bromide solution by vacuum membrane distillation process was presented. Hollow fiber membrane module made by polyvinylidene fluoride was used as desorption device of aqueous lithium bromide solution. Influencing factors of feed flux, feed temperature in lumen side and vacuum pressure in shell side were tested and analyzed with orthogonal test. The results showed that permeation flux of water vapour increased with the feed temperature increasing and the feed flux increasing in lumen side, and the permeation flux also went up along with absolute pressure drop in shell side. Feasibility and potential application analysis shows that the temperature of the driving heat was low and the volume and weight of the desorption device was light. In this study, vacuum membrane distillation to the lithium bromide absorption refrigeration system has proved to be an efficient and cheap desorption mode.
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Details
- Original title: Application of vacuum membrane distillation to lithium bromide absorption refrigeration system.
- Record ID : 2009-2029
- Languages: English
- Source: International Journal of Refrigeration - Revue Internationale du Froid - vol. 32 - n. 7
- Publication date: 2009/11
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Indexing
- Themes: Absorption and adsorption systems
- Keywords: Generator; Vacuum; Design; Absorption system; Membrane; Expérimentation; Water-lithium bromide; Distillation
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- Date : 2008/07/14
- Languages : English
- Source: 2008 Purdue Conferences. 19th International Compressor Engineering Conference at Purdue & 12th International Refrigeration and Air-Conditioning Conference at Purdue [CD-ROM].
- Formats : PDF
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Novel absorption refrigeration system with a ho...
- Author(s) : HONG S. J., DANG C., OKAMOTO H., et al.
- Date : 2015/08/16
- Languages : English
- Source: Proceedings of the 24th IIR International Congress of Refrigeration: Yokohama, Japan, August 16-22, 2015.
- Formats : PDF
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Experimental research on lithium bromide soluti...
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- Date : 2008/06
- Languages : Chinese
- Source: Journal of Refrigeration - vol. 29 - n. 3
- Formats : PDF
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- Author(s) : SCHWEIGLER C., RIESCH P., DEMMEL S., ALEFELD G.
- Date : 1996/02/16
- Languages : English
- Source: ASHRAE Transactions.
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- Author(s) : WU S., EAMES I. W.
- Date : 1998/11
- Languages : English
- Source: Applied Thermal Engineering - vol. 18 - n. 11
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