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Experimental studies on heat and mass transfer characteristics for R134a-DMF bubble absorber
Published in
2012
Volume: 35
   
Issue: 4
Pages: 1104 - 1114
Abstract
Experimental investigations have been carried out to study heat and mass transfer characteristics of Tetrafluoro ethane (R134a) in Dimethyl formamide (DMF) in a glass absorber. Effects of operational parameters viz.; gas flow rate, solution flow rate, solution initial concentration, solution pressure, solution temperature and cooling water flow rate on absorber performance are analyzed. Absorption rate and heat transfer rate increase as the gas flow rate, solution flow rate, cooling water flow rate and solution pressure increase whereas they decrease as the solution initial concentration and solution temperature increase. Heat and mass transfer rates determined from the experiments are compared with numerical model and it is found that agreement is good. A correlation for mass transfer coefficient is presented from the experimental studies within ±20% error band. © 2012 Elsevier Ltd and IIR. All rights reserved.
About the journal
JournalInternational Journal of Refrigeration
ISSN01407007
Open AccessNo
Concepts (22)
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    ABSORPTION RATES
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    Bubble
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    COOLING WATER FLOW RATES
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    DMF
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    Experimental investigations
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    Experimental studies
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    Heat and mass transfer
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    Heat transfer rate
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    Initial concentration
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    Operational parameters
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    PRESSURE INCREASE
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    R134a
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    SOLUTION FLOW RATE
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    Solution temperature
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    Absorption
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    Amides
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    Cooling water
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    Ethane
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    Flow of gases
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    Heat transfer
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    MASS TRANSFER
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    Flow rate