Dibakar Rakshit [Ph.D. (Univ. Western Australia)]
Assistant Professor
Tel:011-26597313
Email: dibakar@ces.iitd.ac.in




Areas Of Interest :

  • * Renewable energy research pertaining to solar thermal heat transfer design encompassing
    • • Transient modelling and simulation of high-temperature systems
    • • High pressure concentrating solar thermal systems
    • • Study of various solar turbine fluids
    • • Solar heat storage devices (characterization of storage materials)
    • • Green building concepts
    • • Waste heat recovery
    • • Computational heat transfer analysis involving convection, conduction and radiation
    • • Thermodynamic optimizations using advanced optimization tools
  • * Energy research related to oil and gas transportation
    • • Multiphase flow studies
    • • Interfacial mass transfer characterisation
    • • Sloshing dynamics
    • • Fluid Structure interactions

Academic Qualification :

  • *PhD (Doctor of Philosophy) Mechanical Engineering
    University of Western Australia, Australia
    http://www.uwa.edu.au/
  • * Master of Science (By Research) Mechanical Engineering
    Indian Institute of Technology, Madras, India
    https://www.iitm.ac.in/
  • * Bachelor of Mechanical Engineering with honours
    Pt. Ravishankar Shukla University, Raipur, India
  • * Diploma of Project Management
    Central Institute of Technology, Australia
    http://www.central.wa.edu.au/

Career‑Related Experience :


Assistant Professor, I.I.T. Delhi Sep 2014 – present
Research Scientist, CSIRO, Australia 2013
Research Associate, Curtin University, Australia 2012
Session Academic, Curtin University 2012
CFD Engineer, Cummins Research and Technology India Ltd (CRTI), India 2005
Heat Transfer Engineer, GE (Energy) Center of Excellence, India 2004

Project through India – Trento program on advanced research under the aegis of IIT Delhi Jan 2015 onwards
Sustainable technologies for distributed level application and energy support to rural development
Role: Co- Project Investigator with Prof. Sanjeev Jain Mechanical Engineering, IIT Delhi as the Lead
Research Assistant, The University of Western Australia Sep 2007 – Jun 2012
Assessment of Two Phase effects on LNG Sloshing Tanks sponsored by Australian Research Council and Chevron
To quantify various fundamental aspects of safe transportation of LNG from offshore to onshore with focus on multiphase process change, impact pressure, velocity and temperature.

    Key responsibilities:
  • • Design experimental test rig to facilitate sloshing and mass transfer experiments
  • • Design and fabricate conductivity probe to measure the air quality
  • • Program the six degrees of freedom motion actuator (hexapod) to conduct experiments
  • • Conduct numerical and experimental investigations
  • • Process high-speed images to identify different types of wall impacts
  • • Supervise undergraduate students

    Achievements:
  • • Quantified and proposed different types of wall impact and mechanisms (Fluid Structure Interactions) for safe transportation of LNG
  • • Estimated the interfacial mass transfer of the liquid to quantify the evaporation and condensation process
  • • Published International Journal and Conference papers other than Discussion Papers
  • • Thesis graded as “Excellent” with only top 20% theses falling under this category

Heat transfer and thermodynamic design of Central receiver for ASTRI Nov 2013 - Sep 2014

    Key responsibilities:
  • • To explore new thermofluids for ASTRI solar receiver
  • • Transient modelling and simulation of high-temperature, high pressure concentrating solar thermal systems
  • • Study of various solar turbine fluids, solar heat storage
  • • Computational heat transfer analysis involving convection, conduction and radiation
  • • Thermodynamic optimisations
  • • Energy and Economic modelling including LCOE and IRR

Cummins Research and Technology India Limited Dec 2005 - Aug 2007
Flow and Heat Transfer Analysis of Exhaust Muffler

    Key responsibilities:
  • • To predict pressure drop across the muffler assembly
  • • To calculate the Flow Distribution Index (FDI) on the catalyst inlet face
  • • To determine wall temperature distribution across the muffler assembly
  • • To determine exhaust gas temperature distributions to reduce pollutants emission to the environment

Journals :

[1].“Characterization of interfacial mass transfer rate of stored liquids” ASME Journal of Thermal Science and Engineering Applications, December 2014
[2]. “Estimation of entropy generation due to heat transfer from a liquid in an enclosure” Dibakar Rakshit, Ramesh Narayanaswamy and Krish P Thiagarajan, ANZIAM Journal, Vol.51, p.852-873
[3]. “The air-water sloshing problem: fundamental analysis and parametric studies on excitation and fill levels” K P Thiagarajan, D Rakshit, N Repalle International Journal of Ocean Engineering, 2011, 38 p. 498-508
[4]. “Thermodynamic optimization of conjugate convection from a finned channel using Genetic Algorithms” Dibakar Rakshit and C. Balaji,Heat and Mass Transfer, 2005, 41 p. 535-544.
[5]. “Evaluation of Candidate approaches in the study of conjugate convection from a fin array” Dibakar Rakshit and C. Balaji, International Communications in Heat and Mass Transfer, 2005, 32 p. 529-538.
[6].“Multi criteria optimization of conjugate convection in a rectangular duct” Dibakar Rakshit, Prakash Vijayan and C.Balaji, International Journal of Heat and Technology, 2004, 22, n. 1, p. 137-144
[7]. “The characterization of interfacial mass transfer of stored liquids” Dibakar Rakshit, Ramesh Narayanaswamy and Krish P Thiagarajan, (Under Review- Experimental Fluid and Thermal Science)
[8].“Turbulent flow through a parallel plate channel with conjugate heat transfer” Dibakar Rakshit, –Heat and Mass Transfer (Under Review- Heat Transfer Engineering)

Conferences / Symposium :

[1]." Dibakar Rakshit, Ramesh Narayanaswamy and Krish P Thiagarajan, Thermodynamic optimization of stored liquid-a holistic approach Proceedings of the 22nd National and 11th International ISHMT-ASME Heat and Mass Transfer Conference to be held at IIT Kharagpur in December 2013
[2]. Tilak T Chandratilleke, Dibakar Rakshit, A Synthetic Jet Heat Sink with Cross-flow for Electronic Cooling proceedings of the 2013 14th International Conference on Electronic Packaging Technology (ICEPT 2013) to be held in China Aug 11-14 2013.
[3]. Dibakar Rakshit, Ramesh Narayanaswamy, Tam Truong, Krish P Thiagarajan, An experimental study on the interface mass transfer governing thermodynamics of stored liquids, Proceedings of the 20th National and 9th International ISHMT-ASME Heat and Mass Transfer Conference held at NPCIL, Mumbai from January 4-6, 2010.
[4]. Dibakar Rakshit, Ramesh Narayanaswamy and Krish P Thiagarajan, Estimation of entropy generation due to heat transfer from a liquid in an enclosure, Proceedings of the 9th Engineering Mathematics and Applications Conference held at the University of Adelaide from 6th - 9th December 2009.
[5]. Rakshit, D., Dev, S, and Thiagarajan, K, P, Application of nano-paints for hydrodynamic pressure visualization, Proceedings of the Fifth Australian Conference on Laser Diagnostics in Fluid Mechanics and Combustion held at The University of Western Australia, Perth from December 3rd to 4th 2008
[6]. Rakshit, D., Thiagarajan, K, P, and Narayanaswamy R, Hydrodynamic and Thermodynamic study of two-phase effects in sloshing tanks, Annual Post Graduate Symposium of Royal Society of Western Australia held at Perth on September 21, 2008.
[7]. Dibakar Rakshit, Nitin Repalle, Jagadeesh Putta and Krish P Thiagarajan, A numerical study on the impact of filling level on liquid sloshing pressures, Proceedings of the ASME 27th International Conference on Offshore Mechanics and Arctic Engineering OMAE 2008, held at Estoril, Portugal from June 15th to 20th 2008.
[8]. Dibakar Rakshit, Hydrodynamic behavior of turbulent flow with conjugate heat transfer through a parallel plate channel, Proceedings of the 33rd National and 3rd International Conference on Fluid Mechanics and Fluid Power held at IIT Bombay from December 7th to 9th 2006.
[9]. Dibakar Rakshit and C. Balaji, Heat Transfer and Thermodynamic optimization of a convecting rectangular channel, Proceedings of 17th National and 6th International Heat and Mass Transfer Conference of ISHMT-ASME held at Kalpakkam, India in January 2004, pp 729 – 735
[10]. Vijayendra. K, Dibakar Rakshit and C. Balaji, Laminar Flow over a Surface mounted with discrete heat sources, Technical souvenir of Sri Sairam Engg. College, Chennai, 2003 (Published)

Technical Reports :

[1]. Thiagarajan, K, Pistani, P., Tam Truong, Rakshit, D. Repalle, N., Assessment of two-phase effects on LNG sloshing in marine tanks- Stage 1 report - Air water sloshing experiment, 2010 by The University of Western Australia, Perth
[2]. Thiagarajan, K, Pistani, P., Tam Truong, Rakshit, D. Repalle, N., Assessment of two-phase effects on LNG sloshing in marine tanks- Stage 2 report - Air water sloshing experiment, 2010 by The University of Western Australia, Perth.
[3]. Thiagarajan, K, Pistani, P., Tam Truong, Rakshit, D. Repalle, N., Assessment of two-phase effects on LNG sloshing in marine tanks- final report -Sloshing experiments, 2010 by The University of Western Australia, Perth.
[4]. D., Narayanaswamy, R., and Thiagarajan, K., P., Discussion paper on pressure sensitive paint and other measurement techniques for Chevron Energy Technology Centre , San Ramon, CA in November, 2007 by The University of Western Australia, Perth.
[5]. Repalle, N., Rakshit, D., Putta, J and Thiagarajan K., P., Discussion paper on scaling of parameters for LNG sloshing for Chevron Energy Technology Centre, San Ramon, CA in July, 2008 by The University of Western Australia, Perth
[6]. Repalle, N., Rakshit, D., Putta, J and Thiagarajan K., P., Design basis for sloshing experiments for Chevron Energy Technology Centre, San Ramon, CA, in August, 2008 by The University of Western Australia, The University of Western Australia, Perth.

B.Tech Student

Saumya Malvania – The University of Western Australia (Completed)
Thesis title - Experiment Design for a Sloshing Model Test

M.Tech Student

Avinash Rangare – IIT Delhi, Co Supervised with Prof. D. K. Sharma
Research Area – LNG transportation - Ongoing

Ph.D Students

Abdus Salam Azad – IIT Delhi, Co Supervised with Prof. S. C. Kaushik
Research Area – Energy efficiency in buildings - Ongoing

Office:

Dibakar Rakshit,
Assistant Professor,
Centre for Energy Studies,
Indian Institute of Technology Delhi,
Hauz Khas New Delhi - 110016, India
Tel: +91-11-2659 7313
Fax: +91-11-26581121
Email: dibakar@iitd.ac.in