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. in Energy Conservation and Management from School of Energy, Tiruchirappalli. His research interests include Power generation from coal and biomass, Energy system analysis, CO2 capture technologies, Batteries, Thermal management of energy systems, 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 Conservation 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 (Grade-I)    
National Institute of Technology, Karnataka Assistant Professor (Grade-I)    
National Institute of Technology, Karnataka Assistant Professor (Grade-II)    
Corporate R&D, Siemens Technology and Services Private Ltd. Lead Research Engineer, Renewable Energy Innovation Centre    
Dr.Navalar Neducheziyan College of Engineering Lecturer    
Sosam Sugar Consultants, Chennai Chemical Engineer    

Professional Qualifications

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

Areas of Interest

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

Sponsored Research Projects

 

#

 

Title

 

Status

 

PI/Co-PI

Duration (in months)

Period

Total Grant/Funding received(Rs.)

Name of Sponsoring/ Funding Agency

 

 

1

Study on Pyrolysis Oil for Determination of Correlation Amongst Feedstock Composition, Manufacturing Technology, and Performance Characteristic.

Research Project Ongoing

PI

16

2024-2026

761760

 

BUREAU OF INDIAN STANDARDS

2

CLIMATE SMART GANDHI MARKET

Research Project Ongoing

PI

4

2025-2026

5000000

TAMIL NADU POLLUTION CONTROL BOARD (TNPCB)

 

3

MOBILE OXYGEN GENERATOR for COVID CENTRES IN AND AROUND NIT-T

Research Project Completed

 

PI

 

7

2021-22

 

1353000

FEDERAL BANK HORMIS FOUNDATION and RECAL FOUNDATION

4

METHANOL as a CLEAN ENERGY SOURCE for INDIA

Research Project Completed

Co-PI

36

2016-2029

9118600

OBAMA-SINGH GRANT, UNITED STATES -INDIA EDUCATIONAL FOUNDATION

Technical Consultancy Services

  1. ZF Rane Automotive India Pvt Ltd, Siruganur, Green Rating Audit of ZF Rane Automotive India Pvt Ltd - 2025-26
  2. KALS BREWERIES PVT LTD, Pudukottai - Energy and Environmental Audit of Kals Breweries - 2025-26
  3. Ammarun Foundries Private Limited, Coimbatore - Sustainability Audit - 2025-26
  4. TryCAE Industrial Engineering Pvt. Ltd., Tiruchirappalli - Manufacturing, ErecƟng and OperaƟon of a Scaled Down See Through Physical Model of ESP for Uttarpradesh Rajya Vidyut Utpadan Nigam Limited - 2021-22
  5. TryCAE Industrial Engineering Pvt. Ltd., Tiruchirappalli - Annu Bar for ESP Up-GradaƟon Project of 2x700 MWe Power Plant for NABHA POWER LTD, Rajpura Punjab - 2021-22
  6. RAITABANDHU AHARODYAM PVT. LTD., BELTHANGADY, MANGALORE -  SILICA GEL FROM RICE HUSK ASH - 2017-18
  7. LAKSHMI CRYOGENICS, BAIKAMPADY, MANGALORE -  ENERGY CONSERVATION IN GAS FILLING INDUSTRY - 2016-17
  8. PADU-TIRUPATHI BIOFUELS, KARKALA, MANGALORE -  ENERGY AUDITING OF PNEUMATIC DRYING UNIT FOR SAW DUST BRIQUETTING UNIT - 2014-15

Patents (Granted/Published/Filed)

 

 Title

Status

Inventor

Country Filed-in

1.   A COMPOSITE SPIRAL FLOW FIELD DESIGN FOR REDOX FLOW BATTERY  GRANTED  (2026)  YES  INDIA
2

 A SORBENT INJECTING DEVICE

Published

Yes

India

3

 A MATERIAL LOADING DEVICE

Published

Yes

India

4 Organic–Inorganic Composite Cocrystal Phase Change Material for Heat Storage  Filing in process   Yes  India

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

Ph.D. Guidance

Degree Awarded /Completed

#

Name of Research Scholar

Title of Thesis

Status

1

J.RAMESH

DEVELOPMENT OF A VANADIUM REDOX FLOW BATTERY THROUGH NOVEL FLOW

FIELD DESIGN AND COST COMPETITIVENESS ANALYSIS

Degree Awarded

2

VEMPALLY MUTHYA GOUD

Experimental investigation and machine learning modelling of shape stabilized composite phase change materials for thermal management of lithium-ion batteries

Degree Awarded

3

THARA RATHNA I V

REDUCTION OF CHROMIUM USING POLYANILINE BASED COMPOSITE MEMBRANE

IN A PHOTOCATALYTIC MEMBRANE REACTOR

Degree Awarded

4

PRAGADEES H K.S.

THERMOPHYSICAL AND THERMOCHEMICAL BEHAVIOUR OF COAL AND BIOMASS DURING CHEMICAL LOOPING COMBUSTION

Degree Awarded

Ongoing

S.No.

Name of Research Scholar

Title of Thesis

Status

1

Mr.Falgun Keyoor Raval

Enhanced Medium Temperature Waste Heat Recovery using Phase Change Materials

Ongoing

2

Mr.G.Suriya Naraynan

Seaweed cultivation using nutrients obtained from aquaculture wastewater, industrial effluents, food production process waters, degassed manures, composts and organic sources

 

Ongoing

3

Ms.S. Suriya

BIOMASS PELLETIZATION: MATERIAL INNOVATION, PROCESS INTENSIFICATION AND ENVIRONMENTAL ASSESSMENT TOWARDS A CIRCULAR ECONOMY

 

Ongoing

4

Mr.Ilayaraja

Co-firing of coal and biomass for energy and value-added by-products

 

Ongoing

5

Mr.M. JOEL FRANKLIN ASARIA

 

HYBRIDIZATION OF WIND/SOLAR PV WITH ENERGY STORAGE SYSTEM & OPTIMIZATION OF POWER

 

Ongoing

 

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