Numerical investigation of the effects of reynolds number to the flow and heat transfer characteristics of the water flow inside multi-port minichannels

Mutlu E., ERBAY L. B.

20th International Conference on Efficiency, Cost, Optimization, Simulation and Environmental Impact of Energy Systems, ECOS 2007, Padova, İtalya, 25 - 28 Haziran 2007, cilt.1, ss.373-379 identifier

  • Yayın Türü: Bildiri / Tam Metin Bildiri
  • Cilt numarası: 1
  • Basıldığı Şehir: Padova
  • Basıldığı Ülke: İtalya
  • Sayfa Sayıları: ss.373-379
  • Eskişehir Osmangazi Üniversitesi Adresli: Evet

Özet

In this study, the investigation of the effects of Reynolds number to the outlet temperature and the pressure drop of the water flow inside multi-port minichannels considering three different channel configurations with hydraulic diameters of 0.89, 0.95 and 1.05 mm and aspect ratios of 0.8, 0.9 and 1.1 has been performed numerically. The flow was assumed laminar, three-dimensional simultaneously developing incompressible under constant heat flux boundary condition. The numerical analysis performed indicated that under the constant heat flux condition the outlet temperature of the coolant decreases while the pressure drop through the multi-port extruded profile increases with the increase in Reynolds number. The study provides a basement for thermohydraulic characteristics of the flow inside the MPE profile before studying high pressure fluids like CO2, which is using in the air conditioning and refrigeration industries, for the analysis of optimized channel number.