The numerical investigation of spherical grooves on thermal–hydraulic behavior and exergy efficiency of two-phase hybrid MWCNT-Al2O3/water nanofluid in a parabolic solar collector

2021 ◽  
Vol 47 ◽  
pp. 101530
Author(s):  
Yacine Khetib ◽  
Khaled Sedraoui ◽  
Ammar A. Melaibari ◽  
Radi Alsulami
Keyword(s):  
Numerical Investigation ◽  
Solar Collector ◽  
Exergy Efficiency ◽  
Two Phase ◽  
Hydraulic Behavior

scholarly journals The Influence of Combined Turbulators on the Hydraulic-Thermal Performance and Exergy Efficiency of MWCNT-Cu/Water Nanofluid in a Parabolic Solar Collector: A Numerical Approach

2021 ◽  
Vol 9 ◽  
Author(s):  
Yacine Khetib ◽  
Ammar Melaibari ◽  
Radi Alsulami
Keyword(s):  
Solar Collector ◽  
Volume Fraction ◽  
Numerical Approach ◽  
Exergy Efficiency ◽  
Multiphase Model ◽  
Two Phase ◽  
Simpler Algorithm ◽  
Fluent Software ◽  
Parabolic Geometries ◽  
Volume Method

The present research benefits from the finite volume method in investigating the influence of combined turbulators on the thermal and hydraulic exergy of a parabolic solar collector with two-phase hybrid MWCNT-Cu/water nanofluid. All parabolic geometries are produced using DesignModeler software. Furthermore, FLUENT software, equipped with a SIMPLER algorithm, is applied for analyzing the performance of thermal and hydraulic, and exergy efficiency. The Eulerian–Eulerian multiphase model and k-ε were opted for simulating the two-phase hybrid MWCNT-Cu/water nanofluid and turbulence model in the collector. The research was analyzed in torsion ratios from 1 to 4, Re numbers from 6,000 to 18,000 (turbulent flow), and the nanofluid volume fraction of 3%. The numerical outcomes confirm that the heat transfer and lowest pressure drop are relevant to the Re number of 18,000, nanofluid volume fraction of 3%, and torsion ratio of 4. Furthermore, in all torsion ratios, rising Re numbers and volume fraction lead to more exergy efficiency. The maximum value of 26.32% in the exergy efficiency was obtained at a volume fraction of 3% and a torsion ratio of 3, as the Re number goes from 60,000 to 18,000.

scholarly journals Experimental and Numerical Investigation of Gas-Liquid Metal Two-Phase Flow Pumping

2021 ◽  
pp. 100092
Author(s):  
Josh Rosettani ◽  
Wael Ahmed ◽  
Philip Geddis ◽  
Lijun Wu ◽  
Bruce Clements
Keyword(s):  
Liquid Metal ◽  
Numerical Investigation ◽  
Two Phase Flow ◽  
Phase Flow ◽  
Two Phase

scholarly journals NUMERICAL INVESTIGATION OF THE EFFECT OF AERODYNAMIC FRAGMENTATION OF CONDENSATE PARTICLES ON THE TWO-PHASE IMPULSE LOSSES IN A SOLID-FUEL ROCKET ENGINE NOZZLE

2017 ◽  
pp. 88-94
Author(s):  
Nikolay Nikolaevich DYACHENKO ◽  
◽  
Lyudmila Ivanovna DYACHENKO ◽  
Valeriya Sergeevna GUROVA ◽  
Sofiya Aleksandrovna SINEOKAYA ◽  
...  
Keyword(s):  
Numerical Investigation ◽  
Solid Fuel ◽  
Rocket Engine ◽  
Two Phase
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