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TECHNICAL PAPERS

Numerical Investigation of the Effects of Environmental Parameters and Geometry on Energy Absorption for an Open-type Water-cooled Flat-plate Solar Collector

[+] Author and Article Information
B. Song, H. Inaba, A. Horibe

Department of Mechanical Engineering, Okayama University 3-1-1 Tsushimanaka, Okayama 700-8530, Japan

J. Sol. Energy Eng 122(2), 56-62 (Apr 01, 2000) (7 pages) doi:10.1115/1.1286333 History: Received September 01, 1998; Revised April 01, 2000
Copyright © 2000 by ASME
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References

Yan,  W. M., and Soong,  C. Y., 1995, “Convective Heat and Mass Transfer along an Inclined Heated Plate With Film Evaporation,” Int. J. Heat Mass Transf., 38, pp. 1261–1269.
Gandhidasan, P., 1986, “Heat and Mass Transfer in Solar Regenerators,” in Handbook of Heat and Mass Transfer, Cheremisinoff, N. P., ed., Gulf Publishing Company, Houston, 2 , Chap. 37.
Yang,  R., and Wang,  P.-L., 1998, “Experimental Study for a Double-glazed Forced-flow Solar Collector/Regenerator,” ASME J. Sol. Energy Eng., 120, pp. 253–259.
Schröppel, J., Thiele, F., and Unterlöhner, O., 1981, “Mass, Heat, and Momentum Transfer in Laminar and Turbulent Pipe Flow with Vaporization of a Liquid Film,” in Numerical Methods in Thermal Problems, Lewis R. W., et al., eds., Pineridge Press, Swansea, 2 , pp. 1215–1226.
Karapantios,  T. D., Kostoglou,  M., and Karabelas,  A. J., 1995, “Local Condensation Rates of Steam-air Mixtures in Direct Contact with a Falling Liquid Film,” Int. J. Heat Mass Transf., 38, pp. 779–794.
Grossman, G., 1986, “Heat and Mass Transfer in Film Absorption,” in Handbook of Heat and Mass Transfer, Cheremisinoff, N. P., ed., Gulf Publishing Company, Houston, 2 , Chap. 6.
Fujita,  Y., and Tsutui,  M., 1994, “Evaporation Heat Transfer of Falling Films on Horizontal Tube (1st report),” Trans. Jpn. Soc. Mech. Eng., Ser. B, 60, pp. 3469–3474 (in Japanese).
Yih, S. M., 1986, “Modeling Heat and Mass Transport in Falling Liquid Films,” in Handbook of Heat and Mass Transfer, Cheremisinoff, N. P., ed., Gulf Publishing Company, Houston, 2 , Chap. 5.
Song,  B., and Viskanta,  R., 1990, “Deicing of Solids Using Radiant Heating,” J. Thermophys. Heat Transfer, 4, pp. 311–317.
Zhong, Z. Y., Yang, K. T., and Lloyd, J. R., 1985, “Variable-property Natural Convection in Tilted Enclosures With Thermal Radiation,” in Numerical Methods in Heat Transfer, Lewis R. W., and Morgan K., eds., Wiley, Chichester, 3 , Chap. 9.
Reid, R. C., Prausnitz, J. M., and Sherwood, T. K., 1977, The Properties of Gases and Liquids, 3rd edition, McGraw-Hill, New York.
Brewster, M. Q., 1992, Thermal Radiative Transfer and Properties, Wiley, New York.
Lunardini, V. J., 1981, Heat Transfer in Cold Climates, Van Nostrand Reinhold Company, New York.
Patankar, S. V., 1980, Numerical Heat Transfer and Fluid Flow, Hemisphere/McGraw-Hill, New York.
Cheremisinoff, P. N., P. E., and Regino, T. C., 1978, Principles & Applications of Solar Energy, Ann Arbor Science, Ann Arbor.

Figures

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Schematic diagram of an open-type collector and the physical model
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Effect of atmospheric humidity on the water film evaporation
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Effects of atmospheric humidity on sensible and latent heat transfers
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Effects of radiative flux and the plate tilt angle on the water film temperature rise
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Effects of radiative flux and the film thickness on the water film temperature rise
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Effect of the absorbing plate length on the water film temperature rise
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Effects of atmospheric temperature and humidity on energy absorption
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Effect of radiative flux on energy absorption
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Effects of the plate tilt angle and length on energy absorption
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Effects of wind speed and the inlet water temperature on energy absorption
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(a) Axial distributions of Tm,Tw and Ti for specific conditions. (b) Comparison of water temperature profiles from the present calculation and others.
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(a) Transverse distributions of temperature and the mass fraction of water vapor at two axial positions. (b) Comparison of gas temperature profiles from the present calculation and others.

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