Numerical simulation of nanofluid turbulent flow in a double-pipe heat exchanger equipped with circular fins

Journal of Thermal Analysis and Calorimetry - In this study, the thermal and flow characteristics of a nanofluid were evaluated numerically in a circular finned double-pipe heat exchanger. A 3D CFD...     

Influence of hybrid nanofluids and heat generation on coupled heat and mass transfer flow of a viscous fluid with novel fractional derivative

Journal of Thermal Analysis and Calorimetry - In this paper, it has been discussed a nonlocal fractional model of viscous nanofluid holding a hybrid nanostructure. Hybridized copper (Cu) and...     

Study on backward-facing step flow and heat transfer characteristics of hybrid nanofluids

Journal of Thermal Analysis and Calorimetry - As high heat dissipation has increasingly become the primary factor restricting the capability of electronic elements, and the high temperature of the...     

Experimental investigation of convective heat transfer growth on ZnO@TiO2/DW binary composites/hybrid nanofluids in a circular heat exchanger

Journal of Thermal Analysis and Calorimetry - The thermophysical properties of freely suspended ZnO and TiO2 nanoparticles in a base fluid (DW) with different mass% concentrations of ZnO@TiO2/DW...     

Experimental study on convective heat transfer and entropy generation of carbon black nanofluid turbulent flow in a helical coiled heat exchanger

Journal of Thermal Analysis and Calorimetry - The convective heat transfer coefficient (CHTC) of a fluid is one of the most effective factors on the performance of a fluid in heat transfer...     

Second law analysis of turbulent convection flow of boehmite alumina nanofluid inside a double-pipe heat exchanger considering various shapes for nanoparticle

Journal of Thermal Analysis and Calorimetry - The main objective of this research is to study the effects of nanoparticle shape on the entropy generation characteristics of boehmite alumina...     

An updated review of nanofluids in various heat transfer devices

Journal of Thermal Analysis and Calorimetry - The field of nanofluids has received interesting attention since the concept of dispersing nanoscaled particles into a fluid was first introduced in...     

Three-dimensional numerical simulation of external fluid flow and heat transfer of a heat exchanger in a wind tunnel using porous media model

Journal of Thermal Analysis and Calorimetry - Notwithstanding the widespread use of wind tunnel to investigate the performance of radiators and heat exchangers, has never been considered a...     

Approaches for modelling of industrial energy systems: correlation of heat transfer characteristics between magnetohydrodynamics hybrid nanofluids and performance analysis of industrial length-scale heat exchanger

Journal of Thermal Analysis and Calorimetry - Numerical analysis is carried out on heat transfer performance of industrial-length double-tube heat exchanger, by using hybrid nanofluid as a coolant...     

Heat transfer and friction factor analysis of MWCNT nanofluids in double helically coiled tube heat exchanger

Journal of Thermal Analysis and Calorimetry - The convective heat transfer rate and friction factor analysis are determined with the help of a double helically coiled tube heat exchanger by...     

A numerical study on subcooled flow boiling heat transfer in tubes with various helical angles at underwater vehicles conditions

Journal of Thermal Analysis and Calorimetry - As a direct source of power, the water vapor with high temperature and high pressure affects the thermal efficiency of an underwater vehicle power...     

Experimental analysis of heat transfer behavior of silver,MWCNT and hybrid (silver +MWCNT) nanofluids in a laminar tubular flow

Journal of Thermal Analysis and Calorimetry - Experimental investigations were carried out in order to study the heat transfer performance of silver (Ag), multiwalled carbon nanotubes (MWCNT) and...     

Heat transfer in an eight-pass oscillating loop heat pipe equipped with cooling tower

Journal of Thermal Analysis and Calorimetry - In this research, a series of experiments have been performed to study the thermal resistance of an oscillating heat pipe equipped with cooling tower....     

Melting heat transfer in hybrid nanofluid flow along a moving surface

Journal of Thermal Analysis and Calorimetry - The impact and capability of Cu–Al $$_2$$ O $$_3$$ /water nanoliquid as the heat transfer fluid are numerically investigated along a moving...     

Heat transfer characteristics of water flowing through micro-tube heat exchanger with variable fluid properties

Journal of Thermal Analysis and Calorimetry - The heat transfer characteristics of laminar single-phase forced convective water flow through a micro-tube heat exchanger are numerically investigated...     

Thermal particle base methods in fluid flow and heat transfer

Journal of Thermal Analysis and Calorimetry -     

Numerical investigation of the magnetic field effect on the heat transfer and fluid flow of ferrofluid inside helical tube

The effect of a magnetic field on heat and fluid flow of ferrofluid in a helical tube is studied numerically. The helical tube is under constant wall temperature boundary condition. Parametric studies are done to investigate the effects of different factors such as the magnetic field gradient value and Reynolds number on heat transfer rate and pressure drop. Results indicate that the magnetic field increases the Nusselt number by about 40%. At high magnetic gradient value, Nusselt number and friction factor rise slightly, while at low magnetic gradient value, the increment of Nusselt number is considerable. Furthermore, the growth of wall shear stress on tube wall results in lower thermal–hydraulic performance at the high magnetic gradient value. There is an optimum case for thermal–hydraulic performance which results in most top performance of helical tube in the presence of the magnetic field.

     

Numerical investigation of laminar flow and heat transfer in a channel using combined nanofluids and novel longitudinal vortex generators

Journal of Thermal Analysis and Calorimetry - Enhancement of heat transfer in plate-fin heat exchangers can be obtained using vortex generators (VG). The three-dimensional laminar flow of...     

Experimental investigation of heat transfer enhancement in pool boiling using novel Ag/ZnO hybrid nanofluids

Journal of Thermal Analysis and Calorimetry - The present study aims at investigating the enhancements in thermal properties, CHF and HTC of novel Ag/ZnO hybrid nanofluid at various concentrations....     

Effect of Reynolds number on heat transfer and flow for multi-oxide nanofluids using numerical simulation

A numerical simulation model for laminar flow of nanofluids in a pipe with constant heat flux at the wall has been built to study the effect of Reynolds number on heat transfer and pressure loss. The investigation was performed for metallic oxide and multi-oxide nanoparticles suspended in water. The thermal conductivity and dynamic viscosity were measured for a range of temperature (10–60 °C) and volume fraction of multi-oxide nanofluid. Comparison of the thermal conductivity for monocular oxide and multi-oxide nanofluids reveals a new way to control the enhancement in nanofluid conductivity. The numerical results obtained were compared with existing well-established correlations. The predictions of the Nusselt number for nanofluids are in agreement with the Shah correlation, and the deviation in the results is less than 1 %. It is found that the pressure loss increases with the Reynolds number, nanoparticle density, and volume fraction for multi-oxide nanoparticles. However, the flow demonstrates enhancement in heat transfer which improves with increasing Reynolds number of the flow.