We report the results of experiments using high-resolution imaging and digital analysis of transient frost growth to obtain quantitative information on frost thickness. The measurement technique provides faster data acquisition and much higher accuracy than traditional approaches. An empirical model of frost growth that captures the fast and slow growth periods is developed based on this data. The key physical and correlating parameter is the ratio of sensible heat transfer-to-total heat transfer, and the growth rate varies inversely with this ratio. The resulting correlation faithfully captures measured growth rates across a wide spectrum of frosting conditions and gives better predictive capability than that of existing correlations. The present model eliminates the need for specifics of the experimental apparatus and test surface as factors in prediction, as well as the necessity of measuring the frost–air interface temperature.
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June 2016
Research-Article
Frost Layer Growth Based on High-Resolution Image Analysis
D. Janssen,
D. Janssen
Department of Mechanical Engineering,
University of Minnesota,
111 Church Street SE,
Minneapolis, MN 55455
e-mail: janssenda@gmail.com
University of Minnesota,
111 Church Street SE,
Minneapolis, MN 55455
e-mail: janssenda@gmail.com
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W. F. Mohs,
W. F. Mohs
Department of Mechanical Engineering,
University of Minnesota,
111 Church Street SE,
Minneapolis, MN 55455
e-mail: william.mohs@skope.co.nz
University of Minnesota,
111 Church Street SE,
Minneapolis, MN 55455
e-mail: william.mohs@skope.co.nz
Search for other works by this author on:
F. A. Kulacki
F. A. Kulacki
Life Fellow ASME
Department of Mechanical Engineering,
University of Minnesota,
111 Church Street SE,
Minneapolis, MN 55455
e-mail: kulacki@me.umn.edu
Department of Mechanical Engineering,
University of Minnesota,
111 Church Street SE,
Minneapolis, MN 55455
e-mail: kulacki@me.umn.edu
Search for other works by this author on:
D. Janssen
Department of Mechanical Engineering,
University of Minnesota,
111 Church Street SE,
Minneapolis, MN 55455
e-mail: janssenda@gmail.com
University of Minnesota,
111 Church Street SE,
Minneapolis, MN 55455
e-mail: janssenda@gmail.com
W. F. Mohs
Department of Mechanical Engineering,
University of Minnesota,
111 Church Street SE,
Minneapolis, MN 55455
e-mail: william.mohs@skope.co.nz
University of Minnesota,
111 Church Street SE,
Minneapolis, MN 55455
e-mail: william.mohs@skope.co.nz
F. A. Kulacki
Life Fellow ASME
Department of Mechanical Engineering,
University of Minnesota,
111 Church Street SE,
Minneapolis, MN 55455
e-mail: kulacki@me.umn.edu
Department of Mechanical Engineering,
University of Minnesota,
111 Church Street SE,
Minneapolis, MN 55455
e-mail: kulacki@me.umn.edu
1Present address: SKOPE Ltd., 66 Princess Street, Christchurch 8140, New Zealand.
2Corresponding author.
Contributed by the Heat Transfer Division of ASME for publication in the JOURNAL OF THERMAL SCIENCE AND ENGINEERING APPLICATIONS. Manuscript received April 16, 2015; final manuscript received November 23, 2015; published online February 17, 2016. Assoc. Editor: Pedro Mago.
J. Thermal Sci. Eng. Appl. Jun 2016, 8(2): 021018 (12 pages)
Published Online: February 17, 2016
Article history
Received:
April 16, 2015
Revised:
November 23, 2015
Citation
Janssen, D., Mohs, W. F., and Kulacki, F. A. (February 17, 2016). "Frost Layer Growth Based on High-Resolution Image Analysis." ASME. J. Thermal Sci. Eng. Appl. June 2016; 8(2): 021018. https://doi.org/10.1115/1.4032536
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