scholarly journals Combined Natural Convection and Surface Radiation Inside Vented Triangular Enclosure - An Experimental Study

2018 ◽  
Vol 144 ◽  
pp. 04019
Author(s):  
Rahul Raj ◽  
K. C. Pradyumna ◽  
B. R. Rakshith ◽  
R. B. Nithin ◽  
S. R. Karthik
Keyword(s):  
Experimental Study ◽  
Natural Convection ◽  
Radiation Heat Transfer ◽  
Base Plate ◽  
Electronic Cooling ◽  
Surface Radiation ◽  
Cooling Systems ◽  
Opening Ratio ◽  
Chamber Temperature ◽  
Triangular Enclosure

In the present experimental study, the influence of Opening ratio on the chamber temperature in case of vented triangular enclosure with hot base plate has been undertaken. Due to more flow passage, the average air temperature in the enclosure decreases by 12% for OR of 0.25 and 13% for OR of 0.5 compared to OR of 0.125. Similar trend is observed for Rayleigh number with a rise of 73% in OR 0.5 compared to OR of 0.125. Further, the influence of radiation heat transfer in the natural convection based enclosure is also studied. This kind of investigation is useful in the design and analysis of electronic cooling systems.

scholarly journals Combined Natural Convection and Surface Radiation Inside Vented Triangular Enclosure - An Experimental Study

2018 ◽  
Vol 144 ◽  
pp. 04019
Author(s):  
Rahul Raj ◽  
K. C. Pradyumna ◽  
B. R. Rakshith ◽  
R. B. Nithin ◽  
S. R. Karthik
Keyword(s):  
Experimental Study ◽  
Natural Convection ◽  
Surface Radiation ◽  
Triangular Enclosure

Copper foam/PCMs based heat sinks: An experimental study for electronic cooling systems

2018 ◽  
Vol 127 ◽  
pp. 381-393 ◽  
Author(s):  
Tauseef-ur- Rehman ◽  
Hafiz Muhammad Ali ◽  
Ahmed Saieed ◽  
William Pao ◽  
Muzaffar Ali
Keyword(s):  
Experimental Study ◽  
Electronic Cooling ◽  
Heat Sinks ◽  
Cooling Systems ◽  
Copper Foam

Combined Natural Convection and Thermal Radiation Heat Transfer in a Triangular Enclosure with an Inner Rectangular Body

2018 ◽  
Vol 384 ◽  
pp. 49-68 ◽  
Author(s):  
Abdel-Illah Amrani ◽  
Nadia Dihmani ◽  
Samir Amraqui ◽  
Ahmed Mezrhab
Keyword(s):  
Heat Transfer ◽  
Radiation Heat Transfer ◽  
The Body ◽  
Surface Radiation ◽  
Physical Parameters ◽  
Coupled Equations ◽  
Simpler Algorithm ◽  
Triangular Enclosure ◽  
Volume Method ◽  
Rectangular Body

In this paper, a numerical simulation was conducted to investigate the steady laminar natural convective heat transfer and surface radiation from a heated rectangular body in a triangular enclosure. The coupled equations of Navier-stockes and energy are both solved using the finite volume method. The velocity-pressure coupling is insured by the SIMPLER algorithm. The fluid used in this study is a dry air of Prandtl numberPr= 0.71.In such way that, the radiative exchanges are made only through solid walls and which are assumed to be gray and diffuse. The physical parameters characterizing the problem and influencing heat transfer are Rayleigh numberRa, aspect ratioA, heighthand widthwof the body. The results are presented in terms of isotherms, streamlines and average Nusselt number.

Natural convection and surface radiation heat transfer in a cavity with vertically oriented fins

2020 ◽  
Vol 27 ◽  
pp. 3051-3057
Author(s):  
L. El Moutaouakil ◽  
M. Boukendil ◽  
Z. Zrikem ◽  
A. Abdelbaki
Keyword(s):  
Heat Transfer ◽  
Natural Convection ◽  
Radiation Heat Transfer ◽  
Surface Radiation ◽  
Radiation Heat
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