Experimental Study On Multi-Nozzle Impingement Jet Heat Transfer For Optimized Rectangular Finned Heat Sinks

Şen S., Karabey A., Mert S. O.

International Conference on Advanced Materials Science & Engineering and High Tech Devices Applications; Exhibition (ICMATSE 2020), Ankara, Turkey, 2 - 04 October 2020, vol.1, pp.268-269

  • Publication Type: Conference Paper / Summary Text
  • Volume: 1
  • City: Ankara
  • Country: Turkey
  • Page Numbers: pp.268-269
  • Van Yüzüncü Yıl University Affiliated: Yes


Application of impinging jets are aimed to realize a high rate of heat transfer by using the least amount of flow rate. In this study aimed to determine the most effective nozzle angle and velocity values for multi-nozzle impingement cooling jet applications using rectangular pin fin heat sink. The experiments were carried out with rectangular finned heat sink which previously optimized in a single nozzle impinging jet flow and named “the general”. In these experiments, three different jet angle (α=10°,20°,30°) and six different values of jet velocity in 4-9 m/sec were used. The effects of angle and jet velocity on heat transfer characteristics were analyzed. Also, plain and pin fin heat sink values were compared. The results were presented as Nu-Re graphics. It is observed that Nusselt number decreases with increasing jet angle. Also, it is observed that Nusselt number increases linearly with increasing jet velocity.