Chemical and mechanical processes during deswelling of hydrogels in a porous solid

Author(s):  
Ali Ghahremaninezhad
Keyword(s):  
2020 ◽  
Vol 4 (6) ◽  
Author(s):  
A. Mandal ◽  
B. J. Jensen ◽  
M. C. Hudspeth ◽  
S. Root ◽  
R. S. Crum ◽  
...  

1976 ◽  
Vol 98 (2) ◽  
pp. 269-275 ◽  
Author(s):  
Choong Se Kim ◽  
Paul M. Chung

The governing equations of thermal ignition are analyzed for porous solid fuel, such as coal, of various two-dimensional and axisymmetric geometries by the Laplace asymptotic method. Mass diffusion of the gaseous oxidant through the porous fuel is included. The nonlinear partial differential equations of energy and mass balances in time-space coordinates containing the Arrhenius volumic chemical reaction terms are analyzed. By employing the Laplace asymptotic technique and by invoking a certain limit theorem, the governing equations are reduced to a first order ordinary differential equation governing the fuel surface temperature, which is readily solved numerically. Detailed discussion of the effects of the various governing parameters on ignition is presented. Because of the basically closed-form nature of the solutions obtained, many general and fundamental aspects of the ignition criteria hitherto unknown are found.


2013 ◽  
Vol 6 (7) ◽  
pp. 2119 ◽  
Author(s):  
Youmin Guo ◽  
Mehdi Bessaa ◽  
Sonia Aguado ◽  
Marlu Cesar Steil ◽  
Damien Rembelski ◽  
...  

2015 ◽  
Vol 3 (6) ◽  
pp. 2684-2689 ◽  
Author(s):  
Y. M. Guo ◽  
G. Largiller ◽  
C. Guizard ◽  
C. Tardivat ◽  
D. Farrusseng

An anode-supported AP-SOFC with long-term operational stability was developed to improve cell performance over 14 times without any coke formation.


2021 ◽  
Vol MA2021-01 (6) ◽  
pp. 321-321
Author(s):  
Anton Neumann ◽  
Katharina Becker-Steinberger ◽  
Simon Hein ◽  
Timo Danner ◽  
Tanner Hamann ◽  
...  

2001 ◽  
Vol 34 (12) ◽  
pp. 1549-1552 ◽  
Author(s):  
HIROTSUGU HATTORI ◽  
TAKAYUKI MORIMOTO ◽  
MASAHIRO YAMAGUCHI ◽  
TOMOMI ONEZAWA ◽  
CHIKAO ARAI

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