The experimental and theoretical study of laminar forced convection of nanofluids in the round channel

• DOI: 10.1016/j.applthermaleng.2014.11.041
• Publication Date: 2014-11-22T19:41:06Z
• Authors: A.V. Minakov; A.S. Lobasov; D.V. Guzei; M.I. Pryazhnikov; V.Ya Rudyak
• Keywords: 01 natural sciences; 0104 chemical sciences

Abstract The experiment-calculated investigation of forced convection of nanofluids based on CuO nanoparticles was carried out. Nanoparticle concentration varied in the range from 0.25 to 2 vol.% in the experiments. The considerable heat transfer intensification was obtained. The power applied to the pump for pumping the nanofluid was measured. A strong influence of the polymer used to stabilize the transport properties of nanofluids was shown. The Newtonian behavior for 0.25%-nanofluid, and non-Newtonian behavior, that described well with power-law model, for all other cases, were obtained. The hydrodynamic description and the model of homogeneous nanofluids are used for modelling. As is shown by the results, such a model satisfactorily describes in some cases the data of full-scale experiment of nanofluids forced convection in laminar flow regimes.