Welcome to my home page. Here you will find brief information about my research and teaching activities. My research interests are primarily focused on electrochemical devices and heterogeneous catalysis. Specifically, our fuel cell research is focused on developing models for various physical and chemical processes in Solid Oxide Fuel Cells and High Temperature Polymer Electrolyte Membrane Fuel Cells. Fuel cells based on paper support and laminar flow fuel cells for application in micro-nano systems that consume milli-watts of power are other research interests of our group. Our heterogeneous catalysis research focuses on CO2 valorization, the development of kinetic models, and reactor modeling. More about my research and teaching activities can be found on the relevant pages. I am very keen to collaborate with people from academia and industry, so after going through my research and teaching activities, please get in touch if you have a common interest.
Our research efforts are primarily in the multiscale modeling of chemically reacting flows with significant emphasis on chemistry. We integrate detailed chemistry (gas-phase/surface) with physically based chemical reactor models. We are currently looking at applying chemically reacting flows in fuel cells, electrolyzers, and catalytic reactors.
Our fuel cell research primarily focuses on the multi-scale modeling of solid oxide fuel cells (SOFCs) and high-temperature polymer electrolyte membrane fuel cells (HT-PEMFCs). Specifically, we are looking at developing kinetic models for predicting the performance and degradation of SOFCs and HT-PEMFCs operated on contaminated fuels such as H2S in the case of SOFCs and CO in the case of HT-PEMFCs. In addition to studying the effect of fuel contamination on cell performance, we are also investigating other degradation mechanisms in both these cell types.
There is a growing interest in reverse operating SOFCs to electrolyze H2O and CO2. Our work on electrolysis aims to develop electrochemical models for CO2 electrolysis and co-electrolysis of CO2 and H2O. We are also studying HT-PEM based unitized regenerative fuel cells (URFCs).
Our current interest is studying hydrocarbon fuels' catalytic conversion and the associated catalyst deactivation phenomena. We focus our research on developing detailed kinetic models for predicting the time on stream catalyst deactivation and product selectivity. We collect the data required for model validation by performing experiments under well-defined conditions in our laboratory. Another aspect of our catalyst research is the conversion of CO2 to fuel and chemicals.
  |
Following are the courses that I have taught or are currently teaching
Here you will find some Julia packages that I have developed for academic and research purposes. The packages are distributed under MIT license. Many more packages will be realeased in the near future. Keep visiting this page if you are interested in kinetics and reactor modeling. Feel free to write to me if you face any difficulties in using any of the following packages.
To install any of the following packages, at the Julia REPL
julia> using Pkg julia> Pkg.add("PackageName")where PackageName is the name of the package that you wish to install.
StirredReactor is a Julia package for the simulation of a CSTR model with detailed gasphase, surface, or user defined chemistry models. [documentation].
PlugFlowReactor is a Julia package for the simulation of a plug reactor model with detailed gasphase, surface, or user defined chemistry models. [documentation].
BatchReactor is a Julia package for the simulation of a batch reactor model with detailed gasphase, surface, or user defined chemistry models. [documentation].
ThermoProbe is a Julia package for the calculation of thermodynamic properties of ideal gases and ideal gas mixtures. [documentation].
Equil is a Julia package for the calculation of equilibrium compositions. [documentation].
SurfaceCoverage is a Julia package for the calculation of fractional coverage of surface adorbed species for a given temperature, pressure and gas-phase composition. A surface reaction mechansim in xml format is required as input file for the calculations. For more information on the xml format please refer to the SurfaceReactions package in the Library Packages section. [documentation].
IdealGas is a Julia package which implements different methods for the calculation of thermodynamic properties of ideal gases and gas mixtures. The package ThermoProbe is basically an example of how to use the IdealGas package. However, ThermoProbe reads input data from an xml file.[documentation].
SurfceReactions is a Julia package which lets you calculate the molar production rates of chemical species based on a mechanism input file. The package reads the reaction mechanism from an xml input file. [documentation].
GasphaseReactions is a Julia package which lets you calculate the molar production rates of chemical species based on a mechanism input file. The format for the mechanism input file is same as that of Chemkin. [documentation].
TransportProperties is a Julia package which lets you calculate diffusion coefficients (binary and mixture), thermal conductivity (pure species and mixture) and viscosity (mixture). [documentation].
  | |||
Ashwin (2022 Aug - ongoing ) Research area: Unitized regenerative fuel cells |
Harish Kumar (2022 Aug - ongoing ) Research area: Modeling catalyst detactivation due to H2S during biogas reforming. |
Venkata Prakash (2017 Jan - 2023 June ) PhD Thesis: Experiments and modeing studies of biogas reforming kinetics |
|||
  | |||
Dr Srinivas Appari (2010-2014) PhD Thesis:Experimental and Theoretical Investigation of Catalyst Poisoning and Regeneration During Biogas Steam Reforming on Nickel Current position: Faculty @ BITS Pilani |
Dr Sweta Lal (2014 Aug- 2019 March ) PhD Thesis: Small-scale power generation using paper based fuel cells (Co-guide) Current position: Faculty @ IISER Bhopal |
||
  | |||
Dr Anusree Unnikrishnan (2013 Dec- 2019 July) PhD Thesis: Experimental and modeling studies of high temperature polymer electrolyte membrane fuel cell performance under poisoning conditions Current position: Post-doc @ University of Calgary |
Dr Vivek Pawar (2013 Aug- 2020 May ) PhD Thesis: Experimental investigation of catalyst deactivation and regeneration during biogas dry reforming Current position: Faculty@ Thapar Institute of Engineering and Technology |
  | |||
Chetna Godara (2021 Aug - ongoing ) M.Tech thesis: Quantification of CO production in SOEC by reverse watergas shift reaction during co-electrolysis |
|||
  | |||
Ahmed (2020 Aug - 2022 June ) M.Tech Thesis: Development of laminar flow micro-fuel cells for application in low power consuming devices |
Akshay Singh (2019 Aug - 2022 June) M.Tech Thesis: Microkinetic modeling study on biogas steam reforming with sulfur poisoning using CatMap Current position: PhD student @ISSER Bhopal |
||
  | |||
Vamsi Ambala (2017 Aug- 2019 June ) M.Tech Thesis: Numerical modeling of HTPEM fuel cells Currently with: BARC |
Uma Sai Mahesh (M.Tech class of 2018) M.Tech Thesis: Exergy analysis of SOFC operating on natural gas Currently with: Numalighar Refinery |
||
  | |||
Atul Meshram (M.Tech class of 2014) M.Tech Thesis: Study of carbon deposition during dry reforming of biogas Current position: PhD student @ IISc |
Venkata Prakash (M.Tech class of 2016) M.Tech Thesis: Modeling of coal devolatilization Current position: PhD student @ IITH |
||
  | |||
Geetha Narasimhaiah (M.Tech class of 2012) M.Tech Thesis: Modeling of CO2 electrolysis in SOEC Currently with: Bloom Energy |
Prashil Lakhete (M.Tech class of 2013) M.Tech Thesis: Modeling of catalytic plate reactor for syngas production Currently with: SABIC |