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TECHNICAL PAPERS: Heat and Mass Transfer

Performance of Horizontal Smooth Tube Absorber With and Without 2-Ethyl-Hexanol

[+] Author and Article Information
Ick-Soo Kyung, Keith E. Herold

Center for Environmental Energy Engineering, Department of Mechanical Engineering, University of Maryland, College Park, MD 20742

J. Heat Transfer 124(1), 177-183 (Jun 05, 2001) (7 pages) doi:10.1115/1.1418366 History: Received April 26, 2000; Revised June 05, 2001
Copyright © 2002 by ASME
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References

Nagaoka, Y., Nishiyama, N., Ajisaka, K., and Nakamura, M., 1987, “Absorber of Absorption refrigerating Machine: Enhancement of Heat and Mass Transfer in Falling Film Absorbers by Surface Configuration,” 17th Int. Congress of Refrigeration, Vienna, Austria, International Institute of Refrigeration, pp. 990–995.
Consenza,  F., and Vliet,  G., 1990, “Absorption in Falling Water/LiBr Films on Horizontal Tubes,” ASHRAE Trans., 96, Pt. 1, pp. 693–701.
Greiter, I., Wagner, A., Weiss, V., and Alefeld, G., 1993, “Experimental Investigation of Heat and Mass Transfer in a Horizontal-Tube Falling-Film Absorber with Aqueous Solutions,” Proc. Int. Absorption Heat Pump Conf., Vol. 31, New Orleans, ASME, AES Vol. 31, pp. 225–232.
Remec,  J., Gjerkes,  H., and Gaspersic,  B., 1996, “Absorption of Vapor into Liquid Film on Horizontal Tubes,” ASHRAE Trans., 102, Pt. 1, pp. 973–979.
Beutler, A., Hoffmann, L., Ziegler, F., Alefeld, G., Gommed, K., Grossman, G., and Shavit, A., 1996, “Experimental Investigation of Heat and Mass Transfer in Film Absorption on Horizontal and Vertical Tubes,” Proc. of Ab-Sorption 96, Vol. I, Montreal, Canada, CANMET-EDRL, Natural Resources Canada, pp. 409–419.
Hoffmann,  L., Greiter,  I., Wagner,  A., Weiss,  V., and Alefeld,  G., 1996, “Experimental Investigation of Heat Transfer in a Horizontal Tube Falling Film Absorber with Aqueous Solutions of LiBr with and without Surfactants,” Int. J. Refrig., 19, No. 5, pp. 331–341.
Atchley, J. A., Perez-Blanco, H., Kirby, M. J., and Miller, W. A., 1998, “An Experimental and Analytical Study of Advanced Surfaces for Absorption Chiller Absorbers,” final report to the Gas Research Institute (GRI-95/0498).
Bennett, C. O. O., and Myers, J. E., 1962, Momentum, Heat, and Mass Transfer, McGraw-Hill Book Co., Inc., pp. 409–411.
Miller, W., 1998, personal communication (draft of chapter from report).
Kulankara, S., 1999, “Effect of Enhancement Additives on the Absorption of Water Vapor by Aqueous Lithium Bromide,” Ph.D. dissertation, Univ. of Maryland at Baltimore, Baltimore, MD.
Kulankara,  S., and Herold,  K. E., 2000, “Theory of Heat/Mass Transfer Additives in Absorption Chillers,” International J. Heating, Ventilating, Air-Conditioning and Refrigeration,6, No. 4, pp. 369–380.
Yuan,  Z., and Herold,  K. E., 2001, “Surface Tension of Aqueous Lithium Bromide with Controlled Vapor Concentration of 2-ethyl-hexanol,” ASHRAE Trans., 107, Pt. 1, pp. 463–468.

Figures

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Schematic diagram of absorber experiment facility
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Effect of inlet subcooling on absorber heat transfer coefficient and heat transfer rate
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Comparison of heat transfer coefficient and outlet subcooling
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Effect of 2EH concentration on absorber heat transfer coefficient and heat flux
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Surface tension of aqueous lithium bromide solution with concentration of 2EH
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Comparison of absorber heat transfer coefficient with and without additive
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Comparison of absorber heat flux with and without additive
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Illustration of slinging at absorber tube bundle
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Decrease of absorber heat transfer coefficient according to amount of slinging

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