The effect of environmental parameters on frost formation on a horizontal cylinder
Abstract
It is known that frost formation on surfaces of the heat exchanger seriously affects the performance of the refrigeration system. Accordingly, defrosting should follow, and effective defrosting is possible only when both analytic tools and comprehensive experimental data on frost formation are assailable. An experimental investigation was undertaken to characterize the effect of environmental parameters on frost formation on a horizontal cylinder in cross uniform flow. Several experiments were carried out with various environmental parameters such as inlet air temperature, inlet air humidity, air velocity and cooling surface temperature. Frost thickness, mass, surface temperature and cylinder inner and outer temperature were measured at front and rear positions of the cylinder. Thickness, mass, density, and effective thermal conductivity of the frost layer were obtained from measured data and effects of environmental parameters on the frost formation were analyzed. Data from experiments were correlated using dimensionless variables.
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An increase in air humidity and a decrease in surface temperature increase frost thickness.
“Lee et al. [22] characterized the effects of various environmental parameters on frost formation on a horizontal cylinder in cross flow and found that an increase in air humidity and decrease in surface temperature increase frost thickness.”
From Heat transfer characteristics of the heat exchangers for refrigeration, air conditioning and heat pump systems under frosting, defrosting and dry/wet conditions—A review (2017) · cites this paper as Lee et al. [22]
Thermal conductivity of frost increased steadily as frost density increased.
“In addition, the thermal conductivity increased steadily as frost density increased.”
From Heat transfer characteristics of the heat exchangers for refrigeration, air conditioning and heat pump systems under frosting, defrosting and dry/wet conditions—A review (2017) · cites this paper as Lee et al. [22]
Cites
Effective thermal conductivity of frost during the crystal growth period
Şahin, A. Z. (2000) · International Journal of Heat and Mass Transfer · doi:10.1016/s0017-9310(99)00162-3 · Cited by 53 · see citing works
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Dimensionless correlations of frost properties on a cold plate
Yang, D.-K., & Lee, K.-S. (2004) · International Journal of Refrigeration · doi:10.1016/s0140-7007(03)00118-x · Cited by 134 · see citing works
Patil, M. S., Seo, J.-H., & Lee, M.-Y. (2017) · Applied Thermal Engineering · doi:10.1016/j.applthermaleng.2016.11.107 · Cited by 86 · see citing works
Local frost behaviors of a scaled-up louvered fin heat exchanger
Park, J.-S., Kim, D. R., & Lee, K.-S. (2015) · International Journal of Heat and Mass Transfer · doi:10.1016/j.ijheatmasstransfer.2015.06.025 · Cited by 24 · see citing works
- Authors
- Lee, Y.-B., Ryu, I.-S., & No, S.-T.
- Venue
- Transactions of the Korean Society of Mechanical Engineers B
- Published
- 2002-02-01
- Volume
- 26
- Issue
- 2
- Pages
- 253-260
- ISSN
- 1226-4881 (ISSN-L)
- OpenAlex
- W2086807927
- Cited by
- 3
- References
- 1
- Citations by year
- 2016: 1 · 2015: 1
- FWCI
- 1.02
- Type
- journal article
- Language
- en
- Open access
- closed
- Locations
- Transactions of the Korean Society of Mechanical Engineers B (publishedVersion)
- Topics
- Physical Sciences › Engineering › Mechanical Engineering › Refrigeration and Air Conditioning Technologies
- Physical Sciences › Engineering › Aerospace Engineering › Icing and De-icing Technologies
- Physical Sciences › Engineering › Mechanical Engineering › Heat Transfer and Optimization
- Keywords
- frost formation, horizontal cylinder, crossflow, heat exchanger fouling, frost thickness, frost density, effective thermal conductivity, inlet air temperature, air humidity, air velocity, thawing, dimensionless correlation
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