Cited by 171Icing and De-icing TechnologiesRefrigeration and Air Conditioning TechnologiesHeat Transfer and Optimization

Frost formation with varying environmental parameters

Jones, B. W., Parker, J. D.·1975·Journal of Heat Transfer

Abstract

In practical applications frost formation often takes place with varying environmental parameters (air velocity, temperature, and humidity). Most correlations that have been developed are for constant parameters. Since the frost formation process is dependent on both time and on the history of the frost layer, the correlations for constant environmental parameters will not work when the parameters vary. For this reason, a study was made to develop a method to predict frost formations with varying parameters. A theoretical model of frost growth based on molecular diffusion of water vapor at the frost surface and using energy and mass balances was developed. The model can incorporate varying environmental parameters. The model uses functions relating heat and mass transfer coefficients at the frost surface to the environmental parameters. The model was first tested and calibrated using data taken by previous investigators. A facility was then built to test the validity of the model for varying environmental parameters. Tests were made for changes in humidity and air velocity. The model showed good agreement with the basic trends observed for varying parameters. The qualitative results were generally within 25 percent of the predicted values for time periods up to 3 hr.

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Crossref · 10.1115/1.3450350

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  • Most experimental tests have been conducted on horizontally assembled plates or fin-and-tube heat exchangers under horizontal air flow conditions.

    “In addition, most experimental tests have been con ducted on horizontally assembled plates [12 -17] or fin-and-tube heat exchangers under horizontal air flow conditions [18 -21].”
  • During frost formation, frost thickness, frost surface temperature, frost density, and frost thermal conductivity all increase continuously.

    “These studies suggest that during frost formation, frost thickness, frost surface temperature, frost density, and frost thermal conductivity all increase continuously.”

    From Frost growth and densification in laminar flow over flat surfaces (2011) · cites this paper as Jones and Parker [1]

  • During frost formation, a portion of the total mass flux of water vapor diffuses through the frost layer and undergoes phase transformation to ice that deposits on existing frost crystals, resulting in frost densification.

    “During frost formation, a portion of the total mass flux of water vapor diffuses through the frost layer, and undergoes phase transformation to ice which deposits on the existing frost crystals, resulting in frost densification (Jones and Parker [1]; Na and Webb [2]).”

    From Frost growth and densification in laminar flow over flat surfaces (2011) · cites this paper as Jones and Parker [1]

  • The remainder of the water vapor mass flux freezes at the frost surface and serves to increase frost thickness.

    “The remainder of vapor mass flux freezes at the frost surface, and serves to increase the frost thickness.”

    From Frost growth and densification in laminar flow over flat surfaces (2011) · cites this paper as Jones and Parker [1]

  • The initial frost thickness and density can be given sufficiently small values without affecting the solution for frost growth and densification.

    “As long as the initial frost thickness and density are given sufficiently small value, they will not affect the solution for the frost growth and densification.”

    From Studies of an air cooler under frost condition (2019) · cites this paper as Jones and Parker (1975)

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Authors
Jones, B. W., & Parker, J. D.
Affiliations
Oklahoma State University (US)
Venue
Journal of Heat Transfer
Publisher
Wiley
Published
1975-05-01
Volume
97
Issue
2
Pages
255-259
ISSN
  • 0022-1481 (ISSN-L)
  • 1528-8943
OpenAlex
W2079897980
Cited by
171
References
0
Citations by year
2026: 9 · 2025: 5 · 2024: 6 · 2023: 6 · 2022: 7 · 2021: 12 · 2020: 4 · 2019: 5 · 2018: 13 · 2017: 6 · 2016: 11 · 2015: 4 · 2014: 6 · 2013: 2 · 2012: 8
FWCI
2.21
Type
journal article
Language
en
Open access
closed
Locations
ASME Journal of Heat and Mass Transfer (publishedVersion)
Topics
  • Physical Sciences › Engineering › Aerospace Engineering › Icing and De-icing Technologies
  • Physical Sciences › Engineering › Mechanical Engineering › Refrigeration and Air Conditioning Technologies
  • Physical Sciences › Engineering › Mechanical Engineering › Heat Transfer and Optimization
Keywords
frost formation, frost growth, water vapor diffusion, frost layer, heat and mass transfer coefficients, air velocity, humidity, mass and energy balance

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