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Heat transfer and defrosting characteristics of a horizontal tube array evaporator immersed in a very shallow fluidized bed.

Author(s) : AIHARA T., OHARA T., KITANO H.

Summary

Heat-transfer, frost formation and defrosting characteristics of a single-row cooled tube array, immersed horizontally both in an impinging jet array and a fluidized bed with a static bed height of 10mm, have been studied experimentally. An excellent defrosting effect was attained by using Teflon-coated tubes and a newly developed multislit distributor producing gas/solid-particle impinging jets in the fluidized bed, inspite of its very low pressure loss. The defrosting characteristics depend primarily upon the temperature difference between the inlet air and tube surface and the jet Reynolds number. It was found that frost-free running is possible even in the case of the low tube surface temperature of -17 deg C.

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Pages: 599-606

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Details

  • Original title: Heat transfer and defrosting characteristics of a horizontal tube array evaporator immersed in a very shallow fluidized bed.
  • Record ID : 1995-2233
  • Languages: English
  • Source: CFCs, the Day After.
  • Publication date: 1994/09/21
  • Document available for consultation in the library of the IIR headquarters only.

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