Share

Modeling frost characteristics on heat exchanger fins. 1. Numerical model.

Author(s) : CHEN H., THOMAS L., BESANT R. W.

Summary

The model treats the frost growth as a porous media that is transient and one-dimensional and includes transient, two-dimensional heat conduction in the fins. As a result, frost properties vary over the fin surfaces. It is found that for a constant air flow rate through the heat exchanger over a four-hour period, the blockage of air flow resulting from the frost growth increases the pressure drop across the heat exchanger by up to a factor of 8, while heat transfer rate decreases by only 20%.

Details

  • Original title: Modeling frost characteristics on heat exchanger fins. 1. Numerical model.
  • Record ID : 2001-2147
  • Languages: English
  • Source: ASHRAE Transactions. 2000 ASHRAE Annual Meeting, Minneapolis, Minnesota + CD-ROM.
  • Publication date: 2000/06/24
  • Document available for consultation in the library of the IIR headquarters only.

Links


See other articles from the proceedings (49)
See the conference proceedings

Indexing