A Correlation for Maximum Heat Transfer to Cylinders and Spheres in Gas-Fluidized Beds
Keyword(s):
A general correlation is presented for predicting maximum heat transfer coefficient for surfaces submerged in gas-fluidized beds. It has been verified with data for horizontal and vertical cylinders and spheres in beds of a wide variety of particles and gases. The gases include air, cryogens, methane, CO2, ammonia, and R-12. The range of parameters includes: heat transfer surface diameter 0.05 to 220 mm, particle diameter 31 to 15000 μm, pressure 0.026 to 0.95 MPa, and temperature 13 to 1028 °C. The 363 data points from 53 sources are predicted with a mean absolute deviation of 16.2 %. Several other correlations were also compared to the same data but had much larger deviations.
1992 ◽
Vol 15
(3)
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pp. 139-150
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2018 ◽
Vol 185
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pp. 127-140
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2010 ◽
Vol 31
(10)
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pp. 870-879
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Keyword(s):
Generalized Prediction of Maximum Heat Transfer to Single Cylinders and Spheres in Gas-Fluidized Bed
1983 ◽
Vol 4
(3-4)
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pp. 107-122
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Keyword(s):
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2016 ◽
Vol 7
(1-2)
◽
pp. 45-55
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