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Air-side performance of open-cell metal foams for use in dehumidifying heat exchangers.

Number: pap. 2480

Author(s) : HAN X. H., NAWAZ K., BOCK J., et al.

Summary

Metal foams with an open-cell structure have physical and mechanical properties suggesting they might have advantages over conventional fin materials for use in air-cooling heat exchangers. For example, metal foams are low weight, have high to very high specific surface area (up to over 10000 m2/m3), have high gas permeability, and have relatively high thermal conductivity (for open-cell bodies). Due to these properties, open-cell metal foams have been studied for many heat transfer applications, especially as a material for constructing efficient compact heat exchangers. In this work, dynamic dips tests are undertaken to explore the water-drainage behavior of the metal foams. Experiments are also undertaken in a closed-loop wind tunnel to evaluate the pressure drop and heat transfer performance of metal foam heat exchangers under dry- and wet-surface conditions.

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Pages: 10 p.

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Details

  • Original title: Air-side performance of open-cell metal foams for use in dehumidifying heat exchangers.
  • Record ID : 30007133
  • Languages: English
  • Source: 2012 Purdue Conferences. 14th International Refrigeration and Air-Conditioning Conference at Purdue.
  • Publication date: 2012/07/16

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