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EFFECT OF ADDITIVES ON THE FILM HEAT TRANSFER OF (LITHIUM, POTASSIUM, SODIUM) NITRATE AND LITHIUM BROMIDE-AQUEOUS MIXTURES.
Author(s) : ZALTASH A.
Summary
TWO ADDITIVES WERE TESTED WITH 77 WT %(LITHIUM, POTASSIUM, SODIUM) NITRATE AQUEOUS MIXTURE. THESE ADDITIVES WERE GALDEN PERFLUORINATED FLUID AND 3M FC-5312 FLUORINERT. FIVE ADDITIVES WERE TESTED WITH 61 WT % LITHIUM BROMIDE-AQUEOUS SOLUTION. THE RESULTS ARE BASED ON THE RATIO OF FILM HEAT TRANSFER COEFFICIENT OF THE WORKING FLUID AT A GIVEN ADDITIVE CONCENTRATION (W) TO ITS VALUE WITHOUT ANY ADDITIVE (W = 0). SIGNIFICANT IMPROVEMENTS WERE ACHIEVED WHEN 2-ETHYL-1-HEXANOL AND 1-HEPTANOL WERE ADDED TO AQUEOUS-LITHIUM BROMIDE SOLUTION. RESULTS SHOW THAT THE HEAT TRANSFER ENHANCEMENT DEPENDS ON THE ADDITIVE CONCENTRATION AND THE FILM MASS FLOW RATE.
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Details
- Original title: EFFECT OF ADDITIVES ON THE FILM HEAT TRANSFER OF (LITHIUM, POTASSIUM, SODIUM) NITRATE AND LITHIUM BROMIDE-AQUEOUS MIXTURES.
- Record ID : 1992-1643
- Languages: English
- Source: New challenges in refrigeration. Proceedings of the XVIIIth International Congress of Refrigeration, August 10-17, 1991, Montreal, Quebec, Canada.
- Publication date: 1991/08/10
- Document available for consultation in the library of the IIR headquarters only.
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