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Dr. Venkat Subramanian
Associate Professor
and
Advisement Coordinator
Contact Info:
Tennessee Tech University
Department of Chemical Engineering
Prescott Hall-Room 307
1020 Stadium Drive
Box 5013
Cookeville, TN 38505-0001
Phone: (931) 372.3494
Fax (931) 372.6352
E-mail:VSubramanian@tntech.edu
Personal webpage>
Efficient Simulation of Electrochemical Power Sources •
Extraction of Kinetic and Transport Parameters • Symbolic Applied
Mathematics and Multi-Scale Simulation of Electrochemical Systems
Education
- Ph.D., Chemical Engineering, University of South Carolina,
2001
- B. Tech., Chemical and Electrochemical Engineering, Central
Electrochemical Research Institute (CECRI), Karaikudi, India,
1997
Honors and Awards
- Who’s Who in Engineering Education, 2005
- Student Achievement Winner of the Electrochemical Society,
Industrial Electrolysis and Electrochemical Engineering Division
(2002)
- Student Research Award of the Battery Division, Electrochemical
Society (2001)
- Dean's Award for Excellence in Graduate Study, University
of South Carolina (2001)
Research Statement
The overall goal of our research program is to design,
model and analyze electrochemical systems. To achieve this goal
we design experiments, combine different kinds of models, develop
efficient numerical solvers, develop various approximation techniques,
and simulate electrochemical processes in different length scales.
We have developed efficient and accurate models of
electrochemical power sources, i.e., batteries, fuel cells and super
capacitors. Using experimental techniques alone to obtain battery
and fuel cell characteristics under a wide range of operating conditions
(for e.g., in a hybrid environment) is time-consuming and a formidable
task. Modeling and simulation based on electrochemical principles,
and transport phenomena combined with a minimum number of experiments
promise to be the only solution. Our research group focuses on simplifying
these models without sacrificing accuracy and combining models of
different kinds for better understanding of these systems.
We have developed efficient tools (experiment with
models) to estimate kinetic and transport parameters of batteries
and fuel cells. Computational models for simulating these experiments
are currently solved numerically. Numerical simulation cannot be
used efficiently to extract transport and kinetic parameters because
of the large number of parameters involved. Our research group solves
the governing electrochemical either analytically or symbolically
using advanced mathematical techniques to facilitate parameter estimation.
Electrodeposition is an electrochemical phenomenon
that exerts over wide ranges of time and length scales. Our research
group has developed a novel semi analytical method for predicting
current density distributions in electrochemical systems. The semi
analytical solutions are more efficient than numerical solutions
for multi-scale simulation.
Our research group has also been developing efficient
numerical and symbolic techniques for boundary value problems in
chemical engineering.
Recent Publications
V. D. Diwakar and V. R. Subramanian, “Effect of Varying Electrolyte Conductivity on the Electrochemical Behavior of Porous Electrodes,” J. Electrochem. Soc., 152(5), A984-A988 (2005).
V. K. Maddirala and V. R. Subramanian, “An Approximate closed form Solution for Pressure and Velocity Distribution in the Cathode Chamber of a PEM Fuel Cell,” J. Power Sources, 143(1-2), 173-178 (2005).
V. R. Subramanian, V. D. Diwakar, D. Tapriyal, “Efficient Macro-Micro Scale Coupled Modeling of Batteries,” J. Electrochem. Soc., 152(10), A2002-A2008 (2005).
V. R. Subramanian, “Computer Facilitated Mathematical Methods – 1. Similarity Solution,” Chemical Engineering Education (accepted, September 2005).
R. E. White and V. R. Subramanian, "Computational
Methods in Chemical Engineering with Maple Applications," Springer
Verlag, (to appear in 2005).
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