General correlation for frost thermal conductivity on parallel surface channels
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- @Article{HOSSEINI:2020:EB,
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author = "S. H. Hosseini and M. Valizadeh and
Alireza Zendehboudi and Mengjie Song",
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title = "General correlation for frost thermal conductivity on
parallel surface channels",
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journal = "Energy and Buildings",
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volume = "225",
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pages = "110282",
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year = "2020",
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ISSN = "0378-7788",
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DOI = "doi:10.1016/j.enbuild.2020.110282",
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URL = "http://www.sciencedirect.com/science/article/pii/S0378778819336163",
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keywords = "genetic algorithms, genetic programming, Frost thermal
conductivity, Empirical correlation, Heat exchanger",
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abstract = "Growth of frost layer on cold fins of tube-fin heat
exchangers leads to an increase in the pressure drop
and a decrease in the frost thermal conductivity and
thereby the heat transfer rate. There is a lack of a
general model in the literature for estimating the
frost thermal conductivity on parallel plate channels,
including almost all parameters affecting this factor.
In this study, for the first time, the general explicit
semi-empirical correlations consist of dimensionless
parameters are developed, which apply to parallel
surface channels. The dimensionless input parameters
include the wall temperature, air temperature, air
velocity, frost porosity, relative humidity, specific
heat of moist air, latent heat of sublimation, and
operating time. The comparative results indicate that
the best correlation predicts data points with an
coefficient of determination, average absolute relative
error, and relative root mean square error equal
0.9921, 2.755percent, and 3.713percent, respectively.
Other available published correlations present higher
deviations using the same dataset. Furthermore, to
provide a good insight into this study, a sensitivity
analysis is carried out employing the validated model.
It is shown that the effective thermal conductivity of
the frost layer is not only a function of frost density
but also depends on a group of dimensionless
parameters. It is observed that the thermal
conductivity of the frost layer increases with the
increase in the Reynolds number, Fourier number, air
humidity, and it decreases with the increase in the
dimensionless temperature, modified Jakob number, and
porosity",
- }
Genetic Programming entries for
Seyyed Hossein Hosseini
Mohammadreza Valizadeh
Alireza Zendehboudi
Mengjie Song
Citations