Selected aspects of the nanofluids utilization as the heat transfer carriers

Abstract

Since many years the nanofluids rise an interest of the researchers in various areas from cosmetology through medicine to technics. In each area potential of the nanofluids depends on various properties, which may be utilized. Considering the technical applications, very important one is related to the energy systems. Present paper discusses the heat transfer enhancement as the main aspect of nanofluid potential in this area. It presents also new research direction regarding the magnetic field influence on a convection of the nanofluids. The experimental analysis gives promising results especially in the context of space applications.

Improvement of the Method of Calculating Heat Transfer Coefficients Using Glycols Taking into Account Surface Forces of Heat Carriers

“…Equations of type (1) lose their universality. Numerical equations for calculating heat transfer using TiO 2 nanoparticles with a classical structure (1) were compactly collected by us in works, 4,[10][11][12] and a corresponding analysis was also carried out. As one can see, these equations are far from analytical, from universal and have a specifically empirical character.…”

“…10 We also neglect temperature changes in the flow of the coolant, which are practically not noticeable. Then equality (12) takes the form (13):…”