Metal foams: Novel materials for air cooling and heating application- Performance under dry, wet and frosting conditions

Kashif Nawaz, Anthony M Jacobi

Research output: Contribution to journalConference article

Abstract

Metal foams have emerged as a potential material for advanced heat exchangers in air-cooling systems. The novel materials have a large surface-area-to-volume ratio and a tortuous structure which promotes flow mixing in heat exchanger applications. The current study provides an overview of the thermal-hydraulic performance of metal foam heat exchangers under dry, wet and frosting operations. The experiments have been conducted in a wind tunnels at a range of operating conditions varying air flow rate, inlet air temperature and relative humidity and the associated pressure drop and heat transfer rate have been measured. The impact of metal foam geometry has been evaluated and the findings have been summarized for heat transfer rate and pressure drop when the heat exchanger operates at various operating conditions.

Original languageEnglish (US)
Pages (from-to)5451-5458
Number of pages8
JournalInternational Heat Transfer Conference
Volume2018-August
StatePublished - Jan 1 2018
Event16th International Heat Transfer Conference, IHTC 2018 - Beijing, China
Duration: Aug 10 2018Aug 15 2018

Fingerprint

metal foams
air cooling
heat exchangers
Heat exchangers
Foams
Metals
Cooling
Heating
heating
Air
pressure drop
Pressure drop
drop transfer
heat transfer
Heat transfer
air intakes
Air intakes
cooling systems
wind tunnels
air flow

Keywords

  • Heat Transfer
  • Heat exchanger
  • Porous media
  • Pressure Drop

ASJC Scopus subject areas

  • Fluid Flow and Transfer Processes
  • Condensed Matter Physics
  • Mechanical Engineering

Cite this

Metal foams : Novel materials for air cooling and heating application- Performance under dry, wet and frosting conditions. / Nawaz, Kashif; Jacobi, Anthony M.

In: International Heat Transfer Conference, Vol. 2018-August, 01.01.2018, p. 5451-5458.

Research output: Contribution to journalConference article

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AB - Metal foams have emerged as a potential material for advanced heat exchangers in air-cooling systems. The novel materials have a large surface-area-to-volume ratio and a tortuous structure which promotes flow mixing in heat exchanger applications. The current study provides an overview of the thermal-hydraulic performance of metal foam heat exchangers under dry, wet and frosting operations. The experiments have been conducted in a wind tunnels at a range of operating conditions varying air flow rate, inlet air temperature and relative humidity and the associated pressure drop and heat transfer rate have been measured. The impact of metal foam geometry has been evaluated and the findings have been summarized for heat transfer rate and pressure drop when the heat exchanger operates at various operating conditions.

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