Heat Transfer Analysis of Cu–Al2O3–Water and Cu–Al2O3–Kerosene Oil Hybrid Nanofluids in the Presence of Frictional Heating: Using 3-Stage Lobatto IIIA Formula

2019 ◽  
Vol 8 (4) ◽  
pp. 885-891 ◽  
Author(s):  
M.I. Afridi ◽  
M. Qasim ◽  
Najeeb Alam Khan ◽  
M. Hamdani
Keyword(s):  
Heat Transfer ◽  
Frictional Heating ◽  
Heat Transfer Analysis ◽  
Hybrid Nanofluids

scholarly journals Hydrodynamic and heat transfer analysis of dissimilar shaped nanoparticles-based hybrid nanofluids in a rotating frame with convective boundary condition

2022 ◽  
Vol 12 (1) ◽  
Author(s):  
Muhammad Ramzan ◽  
Nazia Shahmir ◽  
Hassan Ali S. Ghazwani ◽  
Kottakkaran Sooppy Nisar ◽  
Faizah M. Alharbi ◽  
...  
Keyword(s):  
Heat Transfer ◽  
Boundary Condition ◽  
Base Fluid ◽  
Spherical Shape ◽  
Convective Boundary Condition ◽  
Heat Transfer Analysis ◽  
Hybrid Nanofluid ◽  
Convective Boundary ◽  
Hybrid Nanofluids ◽  
Low Efficiency

AbstractSolar thermal systems have low efficiency due to the working fluid's weak thermophysical characteristics. Thermo-physical characteristics of base fluid depend on particle concentration, diameter, and shapes. To assess a nanofluid's thermal performance in a solar collector, it is important to first understand the thermophysical changes that occur when nanoparticles are introduced to the base fluid. The aim of this study is, therefore, to analyze the hydrodynamic and heat characteristics of two different water-based hybrid nanofluids (used as a solar energy absorber) with varied particle shapes in a porous medium. As the heat transfer surface is exposed to the surrounding environment, the convective boundary condition is employed. Additionally, the flow of nanoliquid between two plates (in parallel) is observed influenced by velocity slip, non-uniform heat source-sink, linear thermal radiation. To make two targeted hybrid nanofluids, graphene is added as a cylindrical particle to water to make a nanofluid, and then silver is added as a platelet particle to the graphene/water nanofluid. For the second hybrid nanofluid, CuO spherical shape particles are introduced to the graphene/water nanofluid. The entropy of the system is also assessed. The Tiwari-Das nanofluid model is used. The translated mathematical formulations are then solved numerically. The physical and graphical behavior of significant parameters is studied.

FLOW FIELD AND HEAT TRANSFER ANALYSIS IN AMON/MMH BIPROPELLANT ROCKET ENGINE

2017 ◽  
Vol 16 (3) ◽  
pp. 263-280 ◽  
Author(s):  
Yu Daimon ◽  
Hideyo Negishi ◽  
Hiroumi Tani ◽  
Yoshiki Matsuura ◽  
Shigeyasu Iihara ◽  
...  
Keyword(s):  
Heat Transfer ◽  
Flow Field ◽  
Rocket Engine ◽  
Heat Transfer Analysis
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