Optimization Of Porous Medium For Solar Radiation Capture

2021 ◽  
Author(s):  
Elizabeth Blokker ◽  
Anthony Straatman ◽  
Kamran Siddiqui
Keyword(s):  
Porous Medium ◽  
Solar Radiation ◽  
Radiation Capture

Solar Radiation Effect on a Magneto Nanofluid Flow in a Porous Medium with Chemically Reactive Species

2018 ◽  
Vol 16 (9) ◽  
Author(s):  
Mohamed R. Eid ◽  
O.D. Makinde
Keyword(s):  
Porous Medium ◽  
Solar Radiation ◽  
Saturated Porous Medium ◽  
Surface Concentration ◽  
Radiation Absorption ◽  
Physical Parameters ◽  
Radiation Chemical ◽  
Electrically Conducting ◽  
Special Cases ◽  
Chemically Reactive Species

Abstract The combined impact of solar radiation, chemical reaction, Joule heating, viscous dissipation and magnetic field on flow of an electrically conducting nanofluid over a convectively heated stretching sheet embedded in a saturated porous medium is simulated. By using appropriate similarity transformation, the governing nonlinear equations are converted into ODEs and numerical shooting technique with (RK45) method is employed to tackle the problem. The effects of various thermo-physical parameters on the entire flow structure with heat and mass transfer are presented graphically and discussed quantitatively. Special cases of our results are benchmarked with some of those obtained earlier in the literature and are found to be in excellent agreement. It is found that both the temperature and surface concentration gradients are increasing functions of the non-Darcy porous medium parameter. One describing result is the incident solar radiation absorption and its transmission into the working nanofluid by convection.

From sunlight to seed: Assessing limits to solar radiation capture and conversion in agro-ecosystems

2020 ◽  
Vol 280 ◽  
pp. 107775 ◽  
Author(s):  
Juan I. Rattalino Edreira ◽  
Spyridon Mourtzinis ◽  
George Azzari ◽  
José F. Andrade ◽  
Shawn P. Conley ◽  
...  
Keyword(s):  
Solar Radiation ◽  
Radiation Capture

MHD Buoyancy Flow of Nanofluids over an Inclined Plate Immersed in Uniform Porous Medium in the Presence of Solar Radiation

2019 ◽  
Vol 35 (4) ◽  
pp. 563-576 ◽  
Author(s):  
Z. Z. Rashed ◽  
S. E. Ahmed ◽  
M. A. Sheremet
Keyword(s):  
Porous Medium ◽  
Solar Radiation ◽  
Volume Fraction ◽  
Boussinesq Approximation ◽  
Radiative Heat Exchange ◽  
Local Similarity ◽  
Inclined Plate ◽  
Two Phase ◽  
Flow And Heat Transfer ◽  
Nanoparticles Volume Fraction

ABSTRACTFree convective flow and heat transfer of nanofluid close to the inclined plate immersed in the porous medium under the effects of uniform magnetic field and solar radiation has been studied. Boundary-layer approach, Boussinesq approximation and two-phase nanofluid model have been used for a formulation of the governing equations taking into account convective-radiative heat exchange with an environment. The local similarity method has been adopted for the analysis of the considered phenomenon. The obtained equations have been solved numerically using MATLAB software. The effects of control characteristics on profiles of velocity, temperature and nanoparticles volume fraction as well as Nusselt number have been studied in detail.

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