Forced convection heat transfer from porous heat sinks placed in partially open cavity: Some case studies

ÖZBALCI O., DOĞAN A.

EXPERIMENTAL HEAT TRANSFER, cilt.31, sa.3, ss.183-193, 2018 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 31 Sayı: 3
  • Basım Tarihi: 2018
  • Doi Numarası: 10.1080/08916152.2017.1397820
  • Dergi Adı: EXPERIMENTAL HEAT TRANSFER
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.183-193
  • Anahtar Kelimeler: forced convection, aluminum foam heat sink, electronic cooling, cavity, MIXED CONVECTION, SQUARE CAVITY, ENCLOSURE, POSITION, FLOW
  • Akdeniz Üniversitesi Adresli: Evet

Özet

In this present study, the forced convection heat transfer from aluminum foam heat sinks with 10, 20, 40 PPI pore density placed in a discrete form in a partially open cavity were experimentally investigated. Air was used as working fluid. The uniform heat flux was applied to 3x3 array of foam heat sinks horizontally mounted in the cavity. The experimental studies were performed for the 3363-9743 range of Reynolds number and the 2.7 x 10(6) and 7.5 x 10(6) range of modified Grashof number. The effects of the Reynolds number, the modified Grashof number and the pore density of foam heat sink on the heat transfer were investigated. The results obtained were compared with the results obtained without foam heat sink cases. In addition, the most heated elements within the cavity were identified and solution proposals were presented. In addition, the most heated elements within the cavity were identified and solution proposals were presented.