scholarly journals Unsteady MHD free convective two immiscible fluid flows in a vertical permeable plate under chemical reaction, heat source and soret effect

2019 ◽  
Author(s):  
A. Govindarajan ◽  
L. Sivakami
2018 ◽  
Vol 7 (4.10) ◽  
pp. 818
Author(s):  
Sivakami. L. ◽  
Govindarajan A. ◽  
E. P. Siva

In this article , the nonlinear Unsteady MHD Free  convective Two Immiscible Fluid Flows in a vertical Permeable plate with Heat and Mass Transfer under chemical reaction and Heat source have been studied here. The conservation equations are solved analytically under the boundary conditions by using perturbation technique. The influence of various non dimensional parameters namely, Magnetic parameter, Prandtl number, chemical reaction,, Thermal radiation parameter and Schmidt number are examined on the velocity, Temperature, Concentration fields in detail. It is noted that  the velocity is decreased with increasing Heat source under chemical reaction parameter. But increasing suction parameter decreases the velocity 


Author(s):  
Kyung-min Jang ◽  
Kwang-Sun Kim

The characteristics of the Li-ion batteries are to be assessed by SOC (State of Charge) or SOH (State of Health) and these two factors are found to be dependent on the inner temperatures. However, the most research reports on Li-ion battery performance are focused on the different surrounding temperatures. There are not many reports on effects of battery self-heating together with electro-chemical reaction. In this research we used FEM to analyze the exothermic problem of the Li-ion battery assuming Ohmic heat, reaction heat, and polarization heat. According to the previous reports, the Ohmic heat is the biggest heat source about 54%, the heat of electro chemical reaction is 30%, and the rest of heat source is the polarization heat. The battery in the energy storage system is generally used as a package connecting several cells together. For the connections of several cells, the surface temperature gradient is also different being compared to one cell. And it is figured out that there are considerable differences on battery performances for various discharge rates.


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