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Thermophysics and Aeromechanics

2023 year, number 5

Investigation of a regenerative cooling system while using heat-conductive metal nanoparticle suspension in n-decane

K.Yu. Arefiev1,2, A.M. Saveliev1,3, A.V. Voronetskii1, S.V. Kruchkov1
1Bauman Moscow State Technical University, Moscow, Russia
2Moscow Institute of Physics and Technology, Dolgoprudny, Russia
3Prokhorov General Physics Institute RAS, Moscow, Russia
Keywords: n-decane, suspension, nanoparticles, heat transfer, cylindrical flow duct

Abstract

The paper presents the calculation estimates for efficiency of regenerative cooling for a model cylinder-shaped duct using a suspension of heat-conductive metal nanoparticles in n-decane as fuel/coolant. We adapted a standard mathematical model of conjugated heat transfer that accounts for thermophysical properties of the metal nanoparticle suspension and n-decane. The data are presented for heating the nanosuspension and the model duct walls for the cases of different content of metal nanoparticles in nanosupension. The range where the use of nanosuspension gives advantages in terms of heat removal relative to the n-decane has been shown.