Abstract
AbstractSeveral polymers like ethylene glycol exhibit non-Newtonian rheological behavior. Ethylene glycol is a world-widely used engine coolant and therefore, investigation of thermal enhancement by dispersing mono and hybrid nanoparticles in ethylene glycol is worthful. Since ethylene glycol has shear rate-dependent viscosity and it obeys the power-law rheological model. Therefore, based on these facts, the power-law rheological model with thermophysical properties is augmented with basic law of heat transfer in fluid for the modeling of the considered physical situation. $$Mo{S}_{2}$$
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are taken as mono-nanoparticles where $$Mo{S}_{2}$$
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and $$Si{O}_{2}$$
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are taken as hybrid nanoparticles. Comparative study for the enhancement of thermal performance of MoS2 ethylene glycol and $$Mo{S}_{2}$$
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−$$Si{O}_{2}$$
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– ethylene glycol is done. For energy conservation, non-Fourier’s law of Cattaneo–Christov is used. The power-law fluid becomes more heat generative due to the dispersion of $$Mo{S}_{2}$$
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and $$Si{O}_{2}$$
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. However, $$Mo{S}_{2}$$
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−power-law fluid is less heat generative relative to $$Mo{S}_{2}$$
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− $$Si{O}_{2}$$
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2
-nanofluid. Thermal relaxation time is found proportional to the ability of the fluid to restore its thermal equilibrium.
Funder
King Fahd University of Petroleum and Minerals
Publisher
Springer Science and Business Media LLC
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