Optimization Of The Design Parameters Using The Taguchi Method In Inclined Impinjement Multijet Heat Transfer With Rectangular Finned Heat Sink

Karabey A., Arvasi S.

HEAT TRANSFER RESEARCH, no.54, pp.37-51, 2023 (SCI-Expanded)

  • Publication Type: Article / Article
  • Publication Date: 2023
  • Doi Number: 10.1615/heattransres.2023046672
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Aerospace Database, Communication Abstracts, Compendex, INSPEC, Metadex, Civil Engineering Abstracts
  • Page Numbers: pp.37-51
  • Van Yüzüncü Yıl University Affiliated: Yes


Thanks to the rapid advancement in technology, especially for the systems having high temperatures and high heat

fluxes, the interest in studies on impingement jets to improve the cooling efficiency increased in recent years. The

current study focuses on determining the optimization of the inclined multijet array to reduce the temperature of

electronic devices. In this study, the cooling was performed on the inclined surfaces by making use of impingement

multijets via heat sinks consisting of rectangular fins modeled in different geometries and optimum cooling conditions

were achieved. In achieving the optimum cooling conditions, the Taguchi method was used since it was thought to

offer a reduction in time and costs in industrial applications. In this study, 11 different parameters were examined at

three different levels in order to determine the optimum conditions for impingement multijet applications. The Nusselt

number was set as the performance characteristic and the L27(311) orthogonal sequence was used as the experiment plan

for 11 parameters that were determined. When calculating the Nusselt number by using nozzle diameter, the optimum

results were achieved using the following parameters: 40 mm of nozzle diameter, 9 m/s of air velocity, 20 mm of vertical

distance between slices, 4444 W/m2 of heat flux, 20 mm of vertical distance between fins, 15 mm of fin width, 30° of

fin angle, 15 mm of horizontal distance between slices, 10° of heat sink angle, 20 mm of horizontal distance between

fins, and 8 of nozzle diameter/heat sink dimensionless distance ratio. The flat plate and optimum heat sink established

using the data obtained were compared under the optimum conditions obtained from the analysis and to the optimum

conditions obtained using the finned optimum heat sink and it was determined that, under the optimum conditions, the

finned heat sink improved the heat transfer by 28.61% when compared to the flat plate.