Study of Uniform Heating using Porous Combustion Procedures

2011 ◽  
Author(s):  
Ryoichi Amano ◽  
Scott Greely ◽  
Grover Benett ◽  
Shyam Singh ◽  
Krishna Guntur
Keyword(s):  
Uniform Heating

Effects of uniform or non-uniform heating at bottom wall on MHD mixed convection in a porous cavity saturated by nanofluid

2021 ◽  
Vol 0 (0) ◽  
Author(s):  
Subramanian Muthukumar ◽  
Selvaraj Sureshkumar ◽  
Arthanari Malleswaran ◽  
Murugan Muthtamilselvan ◽  
Eswari Prem
Keyword(s):  
Magnetic Field ◽  
Heat Transfer ◽  
Transfer Rate ◽  
Hartmann Number ◽  
Volume Fraction ◽  
Solid Volume Fraction ◽  
Darcy Number ◽  
Bottom Wall ◽  
Uniform Heating ◽  
The Magnetic Field

Abstract A numerical investigation on the effects of uniform and non-uniform heating of bottom wall on mixed convective heat transfer in a square porous chamber filled with nanofluid in the appearance of magnetic field is carried out. Uniform or sinusoidal heat source is fixed at the bottom wall. The top wall moves in either positive or negative direction with a constant cold temperature. The vertical sidewalls are thermally insulated. The finite volume approach based on SIMPLE algorithm is followed for solving the governing equations. The different parameters connected with this study are Richardson number (0.01 ≤ Ri ≤ 100), Darcy number (10−4 ≤ Da ≤ 10−1), Hartmann number (0 ≤ Ha ≤ 70), and the solid volume fraction (0.00 ≤ χ ≤ 0.06). The results are presented graphically in the form of isotherms, streamlines, mid-plane velocities, and Nusselt numbers for the various combinations of the considered parameters. It is observed that the overall heat transfer rate is low at Ri = 100 in the positive direction of lid movement, whereas it is low at Ri = 1 in the negative direction. The average Nusselt number is lowered on growing Hartmann number for all considered moving directions of top wall with non-uniform heating. The low permeability, Da = 10−4 keeps the flow pattern same dominating the magnetic field, whereas magnetic field strongly affects the flow pattern dominating the high Darcy number Da = 10−1. The heat transfer rate increases on enhancing the solid volume fraction regardless of the magnetic field.

Extension of A.R.S. correlation to burnout prediction with non-uniform heating

1968 ◽  
Vol 22 (12) ◽  
pp. 705-716
Author(s):  
L. Biasi ◽  
G.C. Clerici ◽  
A. Tozzi ◽  
R. Sala
Keyword(s):  
Uniform Heating

Numerical Studies on Microwave Heating of Thermoplastic-Ceramic Composites Supported on Ceramic Plates

2010 ◽  
Vol 132 (7) ◽  
Author(s):  
Tanmay Basak ◽  
Sankaran Durairaj
Keyword(s):  
Ceramic Composite ◽  
Ceramic Composites ◽  
Thermal Runaway ◽  
Ceramic Plate ◽  
Uniform Heating ◽  
Processing Rate ◽  
Numerical Studies ◽  
Element Simulation ◽  
Al2o3 Composite ◽  
Alumina Composite

A detailed theoretical analysis has been carried out to study efficient microwave assisted heating of thermoplastic (Nylon 66) slabs via polymer-ceramic-polymer composite attached with ceramic plate at one side. The ceramic layer or plate is chosen as Al2O3 or SiC. The detailed spatial distributions of power and temperature are obtained via finite element simulation. It is found that uniform heating with enhanced processing rate may occur with specific thickness of Al2O3 composite, whereas SiC composite leads to enhanced processing rate with higher thermal runaway for thick Nylon samples attached with Al2O3 plate. SiC composite is effective due to enhanced processing rate, whereas Al2O3 is not effective due to reduced processing rate for thin samples attached with Al2O3 plate. For samples attached with SiC plate, thermal runaway is reduced by SiC composite, whereas that is not reduced by Alumina composite. Current study recommends efficient heating methodologies for thermoplastic substances with ceramic composite to achieve a higher processing rate with uniform temperature distribution.

A Novel Design on Uniform Heating Wire Coil of Induction Cooker

2014 ◽  
Vol 496-500 ◽  
pp. 1044-1047 ◽  
Author(s):  
Jia Xiong Zhu ◽  
Qiang Tong
Keyword(s):  
Eddy Current ◽  
Optimization Design ◽  
Equivalent Circuit Model ◽  
Circuit Modeling ◽  
Uniform Heating ◽  
Heating Wire ◽  
New Type ◽  
Wire Coil ◽  
The Common ◽  
Novel Design

In this paper, based on the principle of induction heating and eddy current fields working, the equivalent circuit model of induction cooker heating was proposed and analyzed. By using the finite element numerical analysis software, the optimization design and model simulations of induction cooker were implemented. Finally, a new design of induction cooker with the uniform heating-coil was proposed, and the magnetic circuit modeling and simulation of new type induction cooker heating was carried out, the eddy current loss density distribution in the common wire coil and the improved wire coil was separately calculated and compared. The results shown the new wire coil had higher energy efficiency and more uniform heating characteristics, which provided a reference for the future optimization design and development of induction cooker.

Sample movement optimization for uniform heating in microwave heating ovens

2007 ◽  
Vol 17 (2) ◽  
pp. 142-152 ◽  
Author(s):  
J. L. Pedreño-Molina ◽  
J. Monzó-Cabrera ◽  
J. M. Catalá-Civera
Keyword(s):  
Microwave Heating ◽  
Uniform Heating

Effect of uniform heating rate on the nature of thermoluminescence of glass

1963 ◽  
Vol 20 (9) ◽  
pp. 476-477
Author(s):  
R. V. Lipchanskaya ◽  
V. S. Aksenov
Keyword(s):  
Heating Rate ◽  
Uniform Heating
Sign in / Sign up

Export Citation Format

Share Document