Dr. Ruben Sudhakar D

Dr. Ruben Sudhakar D

Biography

Ruben Sudhakar D is currently working with Department of Energy and Environment, NIT Tiruchirappalli (NITT). Prior to joining NITT, he was serving as Assistant Professor in the Department of Chemical Engineering, National Institute of Technology Karnataka (NITK). Before starting his stint with academia he was a Lead Research Engineer at Renewable Energy Innovation Centre of Siemens Technology and Services Private Ltd., Bangalore, working on various energy conversion technologies for distributed power generation. He earned his Ph.D. from IIT Madras and M. Tech. on Energy Conservation and Management from School of Energy, Tiruchirappalli. His research interests include: Power generation from coal and biomass, Energy system analysis, CO 2 capture technologies, and Energy conservation and management in process industries. He has published his research findings in several reputed journals and conference proceedings. As a Qualified Energy Auditor and Manager, he also offers consultancy services to industries on Energy conservation and management.

Academic Qualifications

Degree Board / University Discipline/Specialization
Ph.D. IIT Madras Energy
M.Tech. School of Energy, Bharathidasan University Energy Conversion and Management
B.Tech. University of Madras Chemical Engineering

Professional Experience

Organization Designation    
National Institute of Technology, Tiruchirappalli Associate Professor    
National Institute of Technology, Tiruchirappalli Assistant Professor    
National Institute of Technology, Karnataka Assistant Professor    
Corporate R&D, Siemens Technology and Services Private Ltd. Lead Research Engineer, Renewable Energy Innovation Centre    

Professional Qualifications

  • Certified Energy Auditor and Manager - Bureau of Energy Efficiency (BEE), Govt. of India

Areas of Interest

  • Heat And Power from Solid Fuels
  • CO2 Capture Technologies
  • Energy System Analysis
  • Sustainable Marine Biotechnology
  • Battery Thermal Management Systems
  • Supercritical CO2 power cycles
  • Energy Storage Systems
  • Energy Conservation and Management Solutions

Selected Publications

  • Falgun Raval, D. Ruben Sudhakar, “Synthesis and comprehensive thermophysical investigation of a novel organic-inorganic ion-coordinated cocrystal phase change material for medium-temperature thermal energy storage applications”, Journal of Energy Storage, Volume 153, Part B, 2026, 120979, ISSN 2352-152X, DOI: 10.1016/j.est.2026.120979

  • Subraja Suriyakumar, Hari Mahalingam, Ruben Sudhakar Dhanarathinam, Utilization of rice husk and de-oiled cashew nut shell cake agro-wastes to produce ISO standard pellets and its synergistic behavior, Bioresource Technology Reports, Volume 32, 2025, 102365, ISSN 2589-014X, DOI: 10.1016/j.biteb.2025.102365

  • J. Ramesh, D. Ruben Sudhakar, G.A. Pathanjali, M. Raja, “Techno-economic assessment on the cost-effective manufacture of scaled-up VRFB system - An Indian scenario”, Energy for Sustainable Development, Volume 89, 2025, 101841, ISSN 0973-0826, DOI: 10.1016/j.esd.2025.101841

  • J. Ramesh, M. Premalatha, D. Ruben Sudhakar, G.A. Pathanjali, M. Raja, “A novel flow design to reduce pressure drop and enhance performance of Vanadium Redox Flow Battery”, Journal of Energy Storage, Volume 108, 2025, 115030, ISSN 2352-152X, DOI: 10.1016/j.est.2024.115030

  • G. Satyanarayana, D. Ruben Sudhakar, V. Muthya Goud, J. Ramesh, G.A. Pathanjali, “Experimental investigation and comparative analysis of immersion cooling of lithium-ion batteries using mineral and therminol oil”, Applied Thermal Engineering, Volume 225, 2023, 120187, ISSN 1359-4311, DOI: 10.1016/j.applthermaleng.2023.120187

  • Muthya Goud V., Falgun Raval, Ruben Sudhakar D., “A sustainable biochar-based shape stable composite phase change material for thermal management of a lithium-ion battery system and hybrid neural network modeling for heat flow prediction”, Journal of Energy Storage, Volume 56, Part C, 2022, 106163, ISSN 2352-152X, DOI: 10.1016/j.est.2022.106163

  • Thara Rathna, Jagadeesh Babu PonnanEttiyappan, Ruben Sudhakar D., “Fabrication of visible-light assisted TiO2-WO3-PANI membrane for effective reduction of chromium (VI) in photocatalytic membrane reactor”, Environmental Technology & Innovation, Volume 24, 2021, 102023, ISSN 2352-1864, DOI: 10.1016/j.eti.2021.102023K. Sekar Pragadeesh and D. Ruben Sudhakar: “Primary Fragmentation Behavior of Indian Coals and Biomass during Chemical Looping Combustion”, Energy & Fuels, 32 (5), 6330-6346, 2018 DOI: 10.1021/acs.energyfuels.8b00640

  • Ruben Sudhakar Dhanarathinam, Ajit Kumar Kolar: “Visualization and characterization of thermo-physical behaviour of wood during devolatilization in a hot fluidized bed using X-ray radiography technique”, Fuel, 112, 208-223, 2013 DOI: 10.1016/j.fuel.2013.04.082

  • D. Ruben Sudhakar and Ajit Kumar Kolar: “Transient Three-Dimensional Mathematical Model and Experimental Investigation of a Wet Devolatilizing Wood in a Hot Fluidized Bed”, Energy & Fuels, 24 (9), 4820-4832, 2010 DOI: 10.1021/ef100394y

Membership in Professional Bodies

  • Life Member - Indian Society for Heat and Mass Transfer (ISHMT)
  • Life Member - Indian Society for Technical Education (ISTE)
  • Life Member - Institution of Engineers India (IEI)
  • Life Member - The Combustion Institute- Indian Section (CIIS)

 

 

 

 

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Contact

Dr. Ruben Sudhakar D.
Associate Professor
Department of Energy and Environment
National Institute of Technology
Tiruchirappalli - 620015
Tamil Nadu, India
Email: rubensudhakar@nitt.edu
Office Telephone: +91-431-2503133