Dept. of Chemical Engg.

Home Chemical Home Faculty Info

Dr. Mandapati Ramesh Naidu

Email: rameshnaidumandapati@gmail.com
Mobile No: 9930104950

  • Ph.D in Chemical Engg at IIT Bombay in 2015
  • M.Tech in Chemical Engg at IIT Madras in 1999
  • B.Tech in Chemical Engg at SVU, Thirupathy in 1996
  • Research Associate, Chemical Engineering Department, IIT BOMBAY, Period: September 2014 to till date.
  • Associate Professor, Chemical Engineering Department (Affiliated to J.N.T.U), Vadlamudi, AP, Period: November 1999 to July 2007.
  • Subjects taught: Chemical Reaction Engineering, Process Heat transfer, Chemical Engineering Thermodynamics, Process Control, Transport Phenomena, Process Modeling and Optimization Techniques, Material and Energy Balance, Advanced Reaction Engineering, Advanced Process Control
  • Laboratories developed: Fluid Mechanics, Heat Transfer, Reaction Engineering and Process Control.
  • Projects handled: B. Tech-10, M. Tech-2
    • Thermodynamic analysis of feasibility of the process.
    • Process modeling and design
    • CFD software, MATLAB
    • Strong knowledge in thermodynamics, process heat transfer and reaction engineering
    International Journals : Published-05, Under review : 02, Under preparation : 01

  • Ramesh N. Mandapati; Sateesh Daggupati; Mahajani S.M.; Ganesh, A.; Aghalayam, P. Experiments and kinetic modeling for CO2 gasification of Indian coal chars in the context of underground coal gasification. Ind. Eng. Chem. Res.51, 15041-15052.
  • Ramesh N. Mandapati; Ishan Shukla; Mahajani S.M.; Ganesh, A.; Aghalayam, P. Kinetic Modelling of Pyrolysis of Indian Lignites . (Under review, Energy & Fuels)
  • Ramesh N. Mandapati; Sateesh Daggupati; Ishaan Shukla; Mahajani S.M.; Ganesh, A.; Aghalayam, P. Experiments and kinetic modeling for steam gasification of Indian lignite coals in the context of underground coal gasification. (Under review, Ind. Eng. Chem. Res.)
  • Sateesh Daggupati; Ramesh N. Mandapati; Mahajani S.M.; Ganesh, A.; Aghalayam, P. Laboratory studies on combustion cavity growth in lignite coal blocks in the context of Underground Coal Gasification. Energy 2010, 35 (6), 2374-2386.
  • Sateesh Daggupati; Ramesh N. Mandapati; Mahajani S.M.; Ganesh, A.; Aghalayam, P. Compartment modeling for flow characterization of underground coal gasification (UCG) cavity. Ind. Eng. Chem. Res., 2011, 50, 277-290.
  • Sateesh Daggupati; Ramesh N. Mandapati; Mahajani S.M.; Ganesh, A.; Aghalayam, P. Laboratory studies on cavity growth and product gas composition in the context of underground coal gasification. Energy, 2011, 36 (3), 1776-1784.
  • Sateesh Daggupati; Ramesh N. Mandapati; Mahajani S.M.; Ganesh, A.; Aghalayam, P. Compartment modeling for flow characterization of underground coal gasification (UCG) cavity- Part-II. Ind. Eng. Chem. Res., 2012, 51(12), 4493-4508.
  • Praveen Godke; Ramesh N. Mandapati; Mahajani S.M.; Ganesh, A., Kinetic Modeling of Pyrolysis of Wood. (Under preparation)
    • International & National Conference Proceedings: 11

    • Ramesh N. Mandapati; Sateesh Daggupati; Mahajani S.M.; Ganesh, A.; Aghalayam, P. "Studies on gasification of char in fixed bed reactor". In Proceedings of the 27th Annual International Pittsburg Coal Conference. Istanbul, Turkey, 11th -14th October, 2010.
    • Ramesh N. Mandapati; Vijayalakshmi CH.; Praveen Godke. Kinetic Modeling of Rice Husk using Thermo-Gravimetric Analyzer 67 th Annual session of Indian Institute of Chemical Engineers CHEMCON 2014, 27-30 December 2014, Chandigarh, India
    • Praveen Godke; Ramesh N. Mandapati; Vijayalakshmi CH. Characterization and Pyrolysis of various Biomass residues" 67 th Annual session of Indian Institute of Chemical Engineers CHEMCON 2014, 27-30 December 2014, Chandigarh, India
    • Vijayalakshmi CH.; Ramesh N. Mandapati; Praveen Godke. Recovery of furfural from waste water by adsorption with ion exchange resins" 67 th Annual session of Indian Institute of Chemical Engineers CHEMCON 2014, 27-30 December 2014, Chandigarh, India.
    • Sateesh Daggupati; Ramesh N. Mandapati; Mahajani S.M.; Ganesh, A.; Aghalayam, P. "Computational Flow Modeling of Underground Coal Gasification Process". In Proceedings of the 27th Annual International Pittsburg Coal Conference. Istanbul, Turkey, 11th -14th October, 2010.
    • Sateesh Daggupati; Mandapati, Ramesh N. Mandapati; Mahajani S.M Ganesh, A.; Aghalayam, P. "Quantification of the Effect of Various Thermal Boundary Conditions exists in the Underground Coal Gasification Cavities by using Compartment Model". In Proceedings of the 27th Annual International Pittsburg Coal Conference. Istanbul, Turkey, 11th -14th October, 2010.
    • Sateesh Daggupati; Ramesh N. Mandapati; Mahajani S.M.; Ganesh, A.; Aghalayam, P. "A Study on the Temperature Profile and Heat Transfer Coefficients in Underground Coal Gasification Cavities". In Proceedings of the 27th Annual International Pittsburg Coal Conference. Istanbul, Turkey, 11th -14th October, 2010.
    • Sateesh Daggupati; Ramesh N. Mandapati; Mahajani S.M.; Ganesh, A.; Aghalayam, P. Laboratory studies on effect of various operating and design parameters on product gas composition in the context of underground coal gasification". In Proceedings of the 21st International Symposium on Chemical Reaction Engineering, Philadelphia, PA, USA during 13th- 16th June 2010.
    • Sateesh Daggupati; Ramesh N. Mandapati; Mahajani S.M.; Ganesh, A.; Aghalayam, P. Prediction of Underground Coal Gasification performance using compartment models. In Proceedings of the 26th Annual International Pittsburg Coal Conference. Pittsburg, USA, 20-23rd September, 2009.
    • Sateesh Daggupati; Ramesh N. Mandapati; Mahajani S.M.; Ganesh, A.; Aghalayam, P. Studies on Flow Pattern in Underground Coal Gasification. In Proceedings of the 3rd International Conference on Chemical and Bio-Process Engineering, University of Malaysia, Sabah, Kota Kinabalu, Malaysia, 12-14th August, 2009.
    • Sateesh Daggupati; Ramesh N. Mandapati; Mahajani S.M.; Ganesh, A.; Aghalayam, P. Compartment model for Underground coal gasification. In Proceedings of the 25th Annual International Pittsburg Coal Conference. Pittsburg, USA, 29th September - 2nd October, 2008.
    • Google Citations-67
      Google H-Factor-4
      Scopus H-Factor-4
      Scopus Citations-48
      Total Impact factor-15.023
    • Ph.D Thesis: Kinetic Studies in Underground Coal Gasification. Advisors: Prof. Sanjay M. Mahajani and Prof. Preeti Aghalayam

      Summary: Underground coal gasification (UCG) is a clean coal technique for utilization of unmineable coal which is converted in-situ into a combustible gas that can be used either as a fuel or as a chemical feedstock. The following are the significant contributions from my research work.

    • Intrinsic kinetics of steam gasification of Indian lignites is estimated by using sophisticated fixed bed reactor. In addition to this, particle diffusional effects are addressed by a mathematical model which is validated against systematic experimental data on spherical particles.
    • A systematic methodology is proposed for determination of 'truly intrinsic kinetics' by using TGA. The CO2 gasification kinetics of the different Indian coals is determined and a one dimensional model has been developed for the diffusion through the bed and particles in the context of Underground Coal Gasification.
    • Kinetics for pyrolysis of various Indian lignites is estimated with TGA experimental data, an appropriate model is developed based on its weight loss during pyrolysis. Apart from the TGA studies, species evolution kinetics is estimated by performing experiments in specially designed reactor setup.
    • A systematic methodology is proposed for laboratory scale experiments to mimic the UCG process. Empirical correlations are developed to relate cavity volume and three dimensional shapes to various design and operating parameters, are reported here for the first time.
    • CFD is used as a tool to characterize the non-ideal flow patterns by performing residence time distribution (RTD) studies in actual size UCG cavities and validated the results with lab-scale experiments. The compartment model is developed based on the CFD simulation results and it is validated by comparing the homogeneous water gas shift reaction- enabled steady state CFD simulation results with that of obtained from the steady state flow simulator (i.e. Aspen Plus).
    • Packed bed reactor is modeled for the UCG and simulations are performed to evaluate the performance of the model.
    • One dimensional spherical model is developed to predict the cavity size, product gas composition, and how the product gas composition changes with spalling of coal.

    Ultimately, this work is expected to contribute significantly to the comprehension, optimization and process modeling of the complex UCG process.

      Present Research:
    • Pyrolysis of Biomass
    • Catalytic Biomass Gasification
    • Chemical Vapor Deposition
    • Reclamation of Return Sand
      Research Tools:
    • FLUENT, MATLAB
    • Thermo Gravimetric Analyzer (TGA), Gas Chromatography, Mass Spectroscopy, Fixed Bed Reactor, Binary Gas analyzer.
    • M.Tech: Heat and mass transfer in packed bed cooling towers for Benzene Toulene system
      Advisor: Prof. S. Subba Rao, IIT Madras
      Summary: Experiments were carried out in packed bed towers for benzene, toluene air system Correlations were developed for heat and mass transfer coefficients

  • Best teacher award for the academic year 2006.
  • Best teacher award for the academic year 2007.
  • Created by: IT Services