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Thermal and hydraulic behaviors of a finned coil heat exchanger coupled with fixed-speed fans during frost formation in an industrial food freezer: numerical modelling and field experimental validation.

Number: 0605

Author(s) : BADRI D., TOUBLANC C., ROUAUD O., HAVET M.

Summary

Frost management is a major concern for frozen food industry manufacturer with significant economic consequences. The present paper describes numerical and experimental approaches analysing the transient heat transfer and flow phenomena of a freezing equipment operating under frosting conditions. The frost model developed considers the temporal phenomena of thickening and densification of the frost layer. The frost model was compared to experimental data from the literature before being integrated in the finned tube heat exchanger model coupled with a fixed-speed axial fan. The whole model results were then compared with field measurements carried out on a real production line. Experimental devices have been deployed to monitor the reduction of the airflow cross-section through the exchanger as well as the reduction of the convective heat transfer coefficient on the conveyor belt on which the products are positioned.

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Pages: 13

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Details

  • Original title: Thermal and hydraulic behaviors of a finned coil heat exchanger coupled with fixed-speed fans during frost formation in an industrial food freezer: numerical modelling and field experimental validation.
  • Record ID : 30031351
  • Languages: English
  • Subject: Technology
  • Source: Proceedings of the 26th IIR International Congress of Refrigeration: Paris , France, August 21-25, 2023.
  • Publication date: 2023/08/21
  • DOI: http://dx.doi.org/10.18462/iir.icr.2023.0605

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