Associate Professor

Department of Mechanical Engineering

National Institute of Technology, Warangal - 506004, Telangana, INDIA

: kiran@nitw.ac.in

: 9494153851

Interests: Thermal Engineering; Heat Transfer; Nanofluids; Refrigeration & Air-Conditioning; CFD; Non-Conventional Energy sources.

 Research Interests:

  1. Thermal Engineering
  2. Heat Transfer
  3. Nanofluids
  4. Refrigeration & Air-Conditioning
  5. CFD
  6. Non-Conventional Energy sources
  7. Thermal Management of Electronics



Course Taught Previously


Courses Handled so far:

Undergraduate: Thermodynamics, Applied thermodynamics, IC engines, Mechanical Measurements, Alternative Sources of Energy, Power Plant Engineering, Refrigeration & Air-Conditioning.

Post Graduate:  Experimental Methods in Thermal Engineering, Refrigeration Technology, HVAC, Advanced Refrigeration & Air-Conditioning, Renewable Energy Sources.




International Journals:

  1. Steady-state analysis of CO2 based natural circulation loop with end heat exchangers, Applied Thermal Engineering, 2009 (29), 1893-1903.
  2. Carbon dioxide as secondary fluid in natural circulation loops, IMechE: JPME, V223, 189-194.
  3. Effect of system pressure on the steady state performance of a CO2 based natural circulation loop, Applied Thermal Engineering, 2009(29), 3346-3352.
  4. Theoretical studies on a CO2 Based Natural Circulation Loop coupled to a Vapour Compression Refrigeration System , I. J. of Energy, Heat and Mass Transfer, 32 (2010).
  5. Experimental studies on CO2 based single and two-phase natural circulation loops, Applied Thermal Engineering, 31, 3437-3443 (2011).
  6. A CFD analysis and simultaneous solution of heat and moisture transfer in a moist object during convective drying, International Journal of Applied Engineering Research, Volume 10, Number 8 (2015), 6152-6157
  7. Numerical Investigation of Nanofluid Based Thermosyphon System, International Journal of Mechanical, Aerospace, Industrial and Mechatronics Engineering, Vol:8 No:12, 2014, 1963-1968
  8. On the suitability of nanofluid as working fluid in Natural Circulation Loops,International Journal of Applied Engineering Research, Volume 10, Number 8 (2015)6191-6195
  9. Numerical and experimental investigation of heat transfer augmentation in double pipe heat excahnger with helical and twisted tape inserts,  International Journal of Emerging Technology and Advanced Engineering,  V 4, Issue 9, September 2014, 180-192.
  10. Numerical Analysis and Validation of Heat Transfer Mechanism of Flat Plate Collectors, Procedia Engineering, V 127,  2015, Pages 63-70.
  11. State-of-art review on hybrid nanofluids, Renewable and Sustainable Energy Reviews 77 (2017) 551-565.
  12. Numerical study on heat transfer characteristics of nanofluid based natural circulation loop,  Accepted., Thermal Science International scientific Journal. 
  13. Thermodynamic analysis of hybrid nanofluid based solar flat plate collector,  Accepted, World Journal of Engineering.
  14. On the Suitability of Phase Change Material (PCM) for Thermal Management of Electronic Components, Indian Journal of Science and Technology, Vol 9(S1), DOI: 10.17485/ijst/2016/v9iS1/107939, December 2016.
  15. Performance parameter evaluation, materials selection, solar radiation with energy losses, energy storage and turbine design procedure for a pilot scale solar updraft, Energy Conversion and Management, 150 (2017) 451-462.
  16. CO2 as Secondary Fluid in Forced Circulation Loops, International Journal of Engineering Technology Science and Research, Volume 4, Issue 10, October 2017.
  17. Effect of ribs on natural convection heat transfer in vertical isothermal heat channel, International Journal of Mechanical Engineering & Technology, Volume 8, Issue 11, November 2017, pp. 285-291.
  18. Numerical investigation to study the effect of loop inclination angle on thermal performance of nanofluid-based single-phase natural circulation loop, International Journal of Ambient Energy, (2018).
  19. Suitability of magnetic nanofluid in heat transfer loops, IJHT, Vol. 36, No. 26, March, 2018, pp. 195-200.
  20. A Complete Design Data and Performance Parameter Evaluation of a Pilot Scale Solar Updraft Tower, Heat transfer engineering (Taylor & Francis,2018,41,5)

  21. Optimized design and performance parameters for wind turbine blades of a solar updraft tower (SUT) plant using theories of Schmitz and aerodynamics forces,  Sustainable Energy Technologies and Assessments 30 (2018) 192–20
  22. Numerical investigation of fluid flow and heat transfer characteristics in novel circular wavy microchannel, Journal of process mechanical engineering, Institution of Mechanical Engineers proceedings, 2018. 
  23. Two-phase natural circulation loop behaviour at atmospheric and subatmospheric conditions, Proc IMechE Part E:J Process Mechanical Engineering.
  24. TECHNOLOGIES TO MAINTAIN THE UNIFORM TEMPERATURE IN MICROCHANNEL SUBSTRATE ALONG THE FLUID FLOW DIRECTION, International Journal of Mechanical and Production, Engineering Research and Development (IJMPERD), Vol. 9, Special Issue, Dec 2019, 41–48.
  25. Numerical Prediction of Heat Transfer and Fluid Flow Characteristics in a Circular Microchannel with Bifurcation Plate, International Journal of Mathematical, Engineering and Management Sciences, Vol. 4, No. 6, 1384–1396, 2019.
  26. Prediction of local heat transfer characteristics of dilute gas-solid flows through an adiabatic, horizontal pipe, Heat Transfer - Asian Research
  27. Experimental studies of heat transfer and flow regimes during flow boiling of water and alumina nanofluids at different heat and mass fluxes, Proc IMechE Part C: J Mechanical Engineering Science, 0(0) 1–15, IMechE 2019.
  28. Computational fluid dynamics studies of gas-solid flows in a horizontal pipe, subjected to an adiabatic wall, using a variable gas properties Eulerian model, Chemical Product and Process Modelling
  29. Numerical investigation of heat transfer enhancement in wavy microchannel with tangential branched secondary channels, Asia-Pacific Journal of Chemical Engineering, 2019
  30. Thermodynamic Analysis of Fe3O4 Nanofluid Flowing Through A Circular Tube, International Journal of Engineering and Advanced Technology, 2019
  31. Experimental Studies on Nanofluid-Based Rectangular Natural Circulation Loop, Journal of Thermal Science and Engineering Applications, AUGUST 2019, Vol. 11.
  32. Numerical investigation of heat transfer and fluid flow characteristics in circular wavy microchannel with tangentially branched secondary channels, Journal of Process Mechanical Engineering, 2019
  33. Numerical Investigation of Heat Transfer and Fluid Flow Characteristics in Circular Wavy Microchannels with Sidewall Rib, Chemical Product and Process Modeling. 2020; 20190052
  34. Comparison of heat transfer and pressure drop results of horizontal gas-solid flows in an adiabatic pipe using plastic, sand and glass particles, Powder Technology,  2020, Accepted.
  35. Computation of flow and heat transfer in horizontal gas-solid flows through an adiabatic pipe, Journal of Mechanical Engineering Science, 2020, Accepted. 
  36. Numerical analysis on flow and performance characteristics of a small scale solar updraft tower (SUT) with horizontal absorber plate and collector glass, Journal of Thermal Analysis and Calorimetry, Accepted
  37. Numerical study on significance of wave amplitude, wavelength and aspect ratio on heat transfer and fluid flow characteristics in circular wavy MC heat sink design, Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science, 2021, https://doi.org/10.1177/0954406221989378.
  38. Effect of Heater and Condenser Orientations on Fluid Flow Behaviour in A Two-Phase Natural Circulation Loop, Journal of Process Mechanical Engineering, Accepted


  1. Simulation of laminar natural convection through a rectangular square channel& effect of thermal conductivity, INDO-NAFEMS Conference at Bangalore, 2007.
  2. Analysis of CO2 based NCL for different refrigeration and air-conditioning application, in NCRAC-2009, at IIT-M, Chennai
  3. Optimisation of port angle for submerged entry nozzle of a continuous casting, conference in Advances in CAD/CAM  at JNTU, Kakinada in feb'2006
  4. Design of piezo electric micro actuator used in impact drive mechanism, Advances in CAD/CAM  at JNTU, Kakinada in feb'2006
  5. Simulation of laminar natural convection through a rectangular square channel, 3rd national conference on Trends in Mechanical Engineering at KITS, Warangal in dec'06.
  6. Performance evaluation of diesel engine Jathropha oil as bio diesel, AICTE sponsored conference on alternate fuels at St,Anns Engineering College, Chirala, India, 2011.
  7. Simulation of liquid steel flow inside the mould: effect of submerged entry nozzle 11th ISHMT-ASME conference at IIT Kharagpur, 28-31Dec 2013.
  8. An Over View On Preparation And Estimation Of Nanofluid Properties, National Conference on Innovations in Engineering & Technology, at GEC, 27-28 Dec'2013.
  9. Steady state analysis on nanofluid based thermosyphon system, 5th International FMFP conference, held at IIT Kanpur, Dec'14.
  10. Design and Performance Parameter Evaluation of a Pilot Scale Solar Updraft Tower, Proceedings of the 1st International and 18th ISME Conference, ISME-NITW 2017, February23rd - 25th, 2017, NIT Warangal, Warangal, India.
  11. Numerical Anlysis Of Flat Plate Collectors Thermal Performances And Validation Of Heat Transfer Mechanism,  International Conference on New Frontiers in Chemical, Energy and Environmental Engineering.
  12. Numerical study on heat transfer and fluid flow behaviour in nanofluid based single-phase natural circulation loop, International Conference on Current Research Topics in Power Nuclear Fuel and Energy (CRTPNFE), Hyderabad, 25th -27th October, 2016
  13. CFD Analysis of hybrid nanofluid based Solar Flat Plate Collector,  International Conference on Current Research Topics in Power Nuclear Fuel and Energy (CRTPNFE), Hyderabad, 25th -27th October, 2016
  14. Numericalstudy on perfromance of twophase natural circulationloop at sub atmosphericconditions, International Conference on Current Research Topics in Power Nuclear Fuel and Energy (CRTPNFE), Hyderabad, 25th -27th October, 2016
  15.  Choosing magnetic nanofluid in heat transfer loops,  International Conference on Current Research Topics in Power Nuclear Fuel and Energy (CRTPNFE), Hyderabad, 25th -27th October, 2016
  16. Design and Performance Investigation of Wind Turbine Blade for Solar Updraft Tower under Low Wind Speeds, 6th international conference on advances in energy research (ICAER), 12th  -14th December, Indian Institute of Technology, Bombay.
  17. Numerical Analysis of Rectangular Two Phase Natural Circulation Loop, The 8th TSME International Conference on Mechanical Engineering 12-15 December 2017 Bangkok, Thailand.
  18. Review on Single-phase thermosyphon loop, National Symposium of Mechanical Engineering Research Scholars (NSMERS), NIT Warangal, Telangana, India,7th October, 2016.
  19. Nanofluids in Solar Flat Plate Collectors �?? A Review,  National Symposium of Mechanical Engineering Research Scholars (NSMERS), NIT Warangal, Telangana, India,7th October, 2016.
  20. Analysis of Rectangular Two Phase Natural Circulation Loop,  National Symposium of Mechanical Engineering Research Scholars (NSMERS), NIT Warangal, Telangana, India,7th October, 2016.
  21. Prediction of heat transfer characteristics in dilute gas-solid flows,  National Symposium of Mechanical Engineering Research Scholars (NSMERS), NIT Warangal, Telangana, India,7th October, 2016.

  22. Numerical Analysis of Rectangular Two Phase Natural Circulation Loop, The 8th TSME International Conference on Mechanical Engineering, 12-15 December 2017, Bangkok, Thailand

PHDs Supervised


Completed: 04

1. B. Ramesh Babu: Title "Numerical and Experimental studies on nanofluid based Natural Circulation Loop"

2. J A Ranga Babu: Title "Performance evaluation of Nanofluid based solar thermal collectors"

3.  S Venkata Sai Sudheer,   Title "Investigation of Thermal Performance of Two Phase Natural Circulation Loop Filled with Nanofluid"

4. Balijepalli Ramakrishna, Title "Design, Development and Performance Parameters Evaluation of Small Scale Solar Updraft Tower (SUT) Plant” --- Co-Supervisor 


Ongoing - 06

  1. B Patro
  2.  T Markandeyalu  (Co-Supervisor)
  3. Nandan Hegde
  4. P Mahesh
  5. Raghuvaran
  6. Hari Prasad



Workshops/Short Term Courses organised:

1. ISTE 2-week short term training program on 'Engineering Thermodynamics' (Co-Convener), during Dec. 11-21, 2012

2. A 5-day workshop on Computational Research Techniques in Design and Thermal Engineering, during 7-11 August, 2013.

3. A 5-day workshop on Scientific Computing with MATLAB, during 22-26 September, 2013.

4.  A Six-day short-term training program on Computational Research Techniques using MATLAB  (CRT2016), Self Finance course, 26th -31st December, 2016

conferences organised:

  1. First International Conference on "Applied Mechanical Engineering Research", during May 2-3, 2019. 



Research Projects:

  1. 'Investigations on heat transfer augmentation in a rectangular thermosyphon loop by using nanofluids: mini to large scale study', funded by DST, GoI- total cost 24 lakhs.  - Competed
  2. 'A novel frost free Refrigerator', Funded by NITW under Research seed grant, MHRD,- total cost 3 lakhs. - Completed 
  3. 'Investigations on thermal performance of two-phase natural circulation loop filled with nanofluid under atmospheric and sub-atmospheric conditions', Funded by BRNS- DAE, GoI, Total Cost 16.5 Lakhs  - Ongoing
  4. 'Experimental Studies On Electronic Cooling Systems Using Newtonian and Non-Newtonian Nanofluids', funded by IEI, Total cost 2 Lakhs  - Completed 
  5. Thermal Management of Green Data Centres, (Co-PI), MHRD sponsored SPARC,  (43.6 Lakhs) -on-going


Consultancy Projects:

1. Developing new coolant and design off road vehicle Heat Exchanger, John Deere, TCI, Pune.

Awards and Honors


Additional Responsibility


Additional Responsibilities:

  1. Head,  Centre for Career Planning And Development (CCPD) from June 2020 onwards
  2. Associate Dean (Media Relations) from January 2020 Onwards
  3. Executive Committee member, Siemens Centre of Excellence from March 2020 August 2020.
  4. Faculty Advisor, Media Club (Students club), NIT Warangal from July 2020 to July 2020. 
  5. Faculty Advisor, MTech (Automobile Engineering), from July 2018 to July 2020. 
  6. Institute Public Relation Officer (PRO),  from April 2018 to January 2020
  7. Faculty In-Charge, Energy Systems Lab
  8. Faculty facilitator, Start-up Cell, NIT Warangal. 
  9. Member, Unnat Bharat Abhiyan (UBA) group - NIT Warangal
  10. Faculty In-Charge, Mechanical Measurements Lab, from 2012 to 2015.
  11. Member, Institute Anti-Raging committee, form 2014 to 2016.
  12. Warden, 4, 13 and 14th Blocks, From 2014 to 2016. 
  13. Member, Centre for Sustainable Energy Studies, TEQIP-II sponsored Project.
  14. Faculty advisor to II B.Tech, Mechanical Engineering from 2013 to 2015.