Abstract
In the present study, pool boiling heat transfer coefficients of LiBr solution were obtained for smooth, corrugated, floral and low fin tubes. Test range covered saturation pressure from 7.38 kPa to 101.3 kPa, LiBr concentration from 0% to 50%. Low fin tube yielded the highest heat transfer coefficient followed by floral, corrugated and smooth tube. The sequence was the same independent of saturation pressure or LiBr concentration. For the low fin tube, the heat transfer enhancement ratio ranged from 1.34 to 2.37. Those of floral tube are 1.16 to 1.64 and those of corrugated tube are 0.90 to 1.43. The enhancement ratio decreased as LiBr concentration increased. No general trend is observed for the effect of saturation pressure. Exceptionally high heat transfer coefficient was obtained for the low fin tube in pure water. The reason may be attributed to many small bubbles at high frequency due to the existence of low fins. Boiling heat transfer correlations were developed which are applicable for saturation pressure from 7.38 kPa to 101.3 kPa and LiBr concentration from 0% to 50%.
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References
J. I. Yoon, H. K. Oh and T. Kashiwagi, Characteristics of heat and mass transfer for a falling film type absorber with insert spring tubes, Trans. of the KSME(B), 19 (6) (1995) 1501–1509.
O. Kawamata, T. Otani, N. Ishitulia and T. Aliyanchi, Development of high performance heat transfer tubes for absorber of absorption refrigerator, Hitachi Corporation, 8 (1985) 57–62.
M. Furukawa, N. Sasaki, T. Kaneko and T. Nosetani, Enhanced heat transfer tubes for absorber of absorption chiller/ heater, Trans. of the JAR, 10 (2) (1993) 219–226.
J. I. Yoon, O. K. Kwon and C. G. Moon, Experimental investigation of heat and mass transfer on absorber with several enhanced tubes, KSME International Journal, 13 (9) (1999) 640–666.
K. T. Lee, H. S. Lee, C. G. Moon, K. C. Kang and J. I. Yoon, Experimental Study on Performance Characteristics of Absorber with Variations of Tube Diameters, Journal of the Korea Society for Power System Engineering, 8 (2004) 328–333.
O. K. Kwon, D. A. Cha, J. H. Yun and H. S. Kim, A study on the heat transfer performance of evaporator heat transfer tube for absorption chiller, Korean Journal of Air-conditioning and Refrigeration Engineering, 21 (4) (2009) 215–221.
W. W. S. Charters, V. R. Megler, W. D. Chen and Y. F. Wang, Atmospheric and sub-atmospheric boiling of H2O and LiBr/H2O solutions, International Journal of Refrigeration, 5 (2) (1982) 107–114.
C. C. Lee, Y. K. Chuah, D. C. Lu and H. Y. Chao, Experimental investigation of pool boiling of lithium bromide solution on a vertical tube under subatmospheric pressures, International Communication in Heat Mass Transfer, 18 (1991) 309–320.
H. K. Varma, R. K. Mehrotra and K. N. Agrawal, Heat transfer during pool boiling of LiBr-water solutions at subatmospheric pressures, International Communications in Heat Mass Transfer, 21 (4) (1994) 539–548.
J. I. Yoon, T. Kashiwagi, Y. H. Lee and H. K. Oh, Experimental study of surfactant effect on generator pool boiling heat transfer, Proceedings of Spring Conference, KSME (1994) 143–146.
R. L. Webb and N.-H. Kim, Principles of enhanced heat transfer, 2nd ed., Taylor and Francis Pub. (2005).
S. J. Kline and F. A. McClintock, The description of uncertainties in single sample experiments, Mechanical Engineering, 75 (1953) 3–9.
E. E. Wilson, A basis of rational design of heat-transfer apparatus, Trans. ASME, 37 (1915) 47–70.
W. M. Rohsenow, A method of correlating heat transfer data for surface boiling of liquids, Trans. ASME, 74 (1952) 969–975.
K. Stephan and M. Abdelsalam, Heat transfer correlations for natural convection boiling, Int. J. Heat Mass Transfer, 23 (1980) 73–87.
D. Gorenflo, Pool boiling, VDI Heat Atlas, VDI-Verlag Dusseldorf, Germany (1993).
G. Collier and J. Thome, Convective boiling and condensation, Oxford University Press (1996).
F-Chart Software, EES32 (2013).
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Recommended by Associate Editor Ji Hwan Jeong
Yong-Sub Sim is a Ph.D. student in school of mechanical system engineering, University of Incheon. His interest includes heat transfer enhancement and HVAC.
Nae-Hyun Kim is a Professor in school of mechanical system engineering, University of Incheon. He received Ph.D. from Penn State University in 1989. His interest includes heat transfer enhancement, heat and mass transfer modeling of an enthalpy exchanger, boiling and condensation in mini-channels, flow distribution in parallel flow heat exchangers, etc.
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Sim, YS., Kim, NH. Pool boiling performance of lithium bromide solution on enhanced tubes. J Mech Sci Technol 29, 2555–2563 (2015). https://doi.org/10.1007/s12206-015-0550-y
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DOI: https://doi.org/10.1007/s12206-015-0550-y