A two-fluid one-dimensional model has been developed to predict the wall temperature of an internally heated tube during inverted annular flow film boiling (IAFB). The model is derived using basic conservation equations of mass, momentum, and energy. To simplify the derivation of the constitutive heat transfer relations, flow between two parallel plates is assumed. The model features shear stress and interfacial relations that make it accurately predict the parametric effects and heat transfer characteristics of IAFB over a wide range of flow conditions. The model predicts wall temperatures of R-134a-cooled tubes with an average error of and a rms error of 6.37%. This corresponds to average and rms errors in predicted heat transfer coefficients of 1.33% and 10.07%, respectively. Using water data, the model predicts wall temperatures with an average error of and a rms error of 7.78%, which corresponds to average and rms errors in predicted heat transfer coefficients of 4.16% and 15.06%, respectively.
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e-mail: elnakla@kfupm.edu.sa
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June 2010
Research Papers
Modeling Subcooled Flow Film Boiling in a Vertical Tube
Meamer El Nakla,
Meamer El Nakla
Department of Mechanical Engineering,
e-mail: elnakla@kfupm.edu.sa
King Fahd University of Petroleum and Minerals
, Dhahran 31261, Saudi Arabia
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D. C. Groeneveld,
D. C. Groeneveld
Thermalhydraulics Branch,
Atomic Energy of Canada Limited
, Chalk River, ON, K0J 1J0, Canada; Department of Mechanical Engineering, University of Ottawa
, Ottawa, ON, K1N 6N5, Canada
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Shui-Chih Cheng
Shui-Chih Cheng
Department of Mechanical Engineering,
University of Ottawa
, Ottawa, ON, K1N 6N5, Canada
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Meamer El Nakla
Department of Mechanical Engineering,
King Fahd University of Petroleum and Minerals
, Dhahran 31261, Saudi Arabiae-mail: elnakla@kfupm.edu.sa
D. C. Groeneveld
Thermalhydraulics Branch,
Atomic Energy of Canada Limited
, Chalk River, ON, K0J 1J0, Canada; Department of Mechanical Engineering, University of Ottawa
, Ottawa, ON, K1N 6N5, Canada
Shui-Chih Cheng
Department of Mechanical Engineering,
University of Ottawa
, Ottawa, ON, K1N 6N5, CanadaJ. Thermal Sci. Eng. Appl. Jun 2010, 2(2): 021002 (13 pages)
Published Online: October 21, 2010
Article history
Received:
May 3, 2010
Revised:
July 13, 2010
Online:
October 21, 2010
Published:
October 21, 2010
Citation
El Nakla, M., Groeneveld, D. C., and Cheng, S. (October 21, 2010). "Modeling Subcooled Flow Film Boiling in a Vertical Tube." ASME. J. Thermal Sci. Eng. Appl. June 2010; 2(2): 021002. https://doi.org/10.1115/1.4002526
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