Heat transfer and entropy generation of turbulent forced convection flow of nanofluids in a heated pipe
نویسندگان
چکیده
منابع مشابه
Entropy generation calculation for laminar fully developed forced flow and heat transfer of nanofluids inside annuli
In this paper, second law analysis for calculations of the entropy generation due to the flow andheat transfer of water-Al2O3 and ethylene glycol-Al2O3 nanofluids inside annuli is presented. Thephysical properties of the nanofluids are calculated using empirical correlations. Constant heatfluxes at inner surface of the annuli are considered and fully developed condition for fluid flowand heat t...
متن کاملSaha, G., and Paul, M. C. (2015) Heat transfer and entropy generation of turbulent forced convection flow of nanofluids in a heated pipe.International
Eulerian-Eulerian multi-phase mixture model is applied to numerically analyse the turbulent flow and heat transfer behaviours of water based Al2O3 and TiO2 nanofluids in a pipe. The main goal of the present work is to investigate the effects of volume concentrations, Brownian motion and size diameter of nanoparticles on the flow and heat transfer. Analysis of entropy generation is presented in ...
متن کاملentropy generation calculation for laminar fully developed forced flow and heat transfer of nanofluids inside annuli
in this paper, second law analysis for calculations of the entropy generation due to the flow andheat transfer of water-al2o3 and ethylene glycol-al2o3 nanofluids inside annuli is presented. thephysical properties of the nanofluids are calculated using empirical correlations. constant heatfluxes at inner surface of the annuli are considered and fully developed condition for fluid flowand heat t...
متن کاملEntropy Generation Analysis and Performance Evaluation of Turbulent Forced Convective Heat Transfer to Nanofluids
The entropy generation analysis of fully turbulent convective heat transfer to nanofluids in a circular tube is investigated numerically using the Reynolds Averaged Navier–Stokes (RANS) model. The nanofluids with particle concentration of 0%, 1%, 2%, 4% and 6% are treated as single phases of effective properties. The uniform heat flux is enforced at the tube wall. To confirm the validity of the...
متن کاملEnhancement of heat transfer and entropy generation analysis of nanofluids turbulent convection flow in square section tubes
In this article, developing turbulent forced convection flow of a water-Al2O3 nanofluid in a square tube, subjected to constant and uniform wall heat flux, is numerically investigated. The mixture model is employed to simulate the nanofluid flow and the investigation is accomplished for particles size equal to 38 nm.An entropy generation analysis is also proposed in order to find the optimal wo...
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ژورنال
عنوان ژورنال: International Communications in Heat and Mass Transfer
سال: 2015
ISSN: 0735-1933
DOI: 10.1016/j.icheatmasstransfer.2014.11.007