scholarly journals Supercritical-Fluids Thermophysical Properties and Heat Transfer in Power-Engineering Applications

2020 ◽  
Author(s):  
Igor L. Pioro
Keyword(s):  
Heat Transfer ◽  
Supercritical Fluids ◽  
Thermophysical Properties ◽  
Power Engineering ◽  
Engineering Applications

Use of metallic nanoparticles to improve the thermophysical properties of organic heat transfer fluids used in concentrated solar power

Solar Energy ◽  
2014 ◽  
Vol 105 ◽  
pp. 468-478 ◽  
Author(s):  
Dileep Singh ◽  
Elena V. Timofeeva ◽  
Michael R. Moravek ◽  
Sreeram Cingarapu ◽  
Wenhua Yu ◽  
...  
Keyword(s):  
Heat Transfer ◽  
Thermophysical Properties ◽  
Metallic Nanoparticles ◽  
Solar Power ◽  
Concentrated Solar Power ◽  
Heat Transfer Fluids

An Analytical Study to Compare the Heat Transfer Performances of Water-Based TiO2, SiO2, TiC and SiC Nanofluids

2021 ◽  
Vol 408 ◽  
pp. 119-128
Author(s):  
Md Yeashir Arafat ◽  
Shashwata Chakraborty
Keyword(s):  
Heat Transfer ◽  
Thermophysical Properties ◽  
Figure Of Merit ◽  
Analytical Study ◽  
Convection Heat Transfer ◽  
Effective Density ◽  
Dispersion Effects ◽  
Water Based ◽  
Laminar And Turbulent Flow ◽  
Transfer Properties

The thermophysical properties as well as the thermal performance of a nanofluid can be altered upon varying the nanoparticle type and/or nanoparticle volume concentration. Herein, the effects of variable nanoparticle concentration on water-based TiO2, SiO2, TiC, and SiC nanofluids have been studied analytically. The dispersion effects of 1-4% nanoparticle on the single-phase forced convection heat transfer performance of the nanofluids have been investigated. The effective thermophysical properties of the nanofluids are determined adopting the general correlations. The flow velocities of the nanofluids relative to their base fluids are assumed to be constant. Mouromtseff number has been employed as a convenient figure of merit to compare the nanofluids under fully developed internal laminar and turbulent flow conditions. The results indicate an increase in effective density, thermal conductivity, and dynamic viscosity of the nanofluids. Nanofluids containing carbide suspensions exhibit superior heat transfer properties compared to those having oxide suspensions.

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