Extractive Metallurgy

• R. Thudum, A. Srivastava, S. Nandi, A. Nagaraj, R. Shekhar: “Molten salt electrolysis of neodymium: electrolyte selection and deposition mechanism,” Trans. Inst. Min. Metall. C, v 119 (2), 2010, pp. 88-92.

• S. N. Lenka, S. P. Mehrotra, R. Shekhar: “Magnetohydrodynamics in advanced Hall-Heroult cells: Physical modelling of flow in a laboratory-scale cell, Trans. Inst. Min. Metall. C, v 116, 2007, pp. 177-182.

• D. Bhunia, S. P. Mehrotra, R. Shekhar: “A novel probe for measuring current distribution in wood’s metal in a simulated Hall-Heroult cell,” Trans. Inst. Min. Metall. C, v 115, 2006, pp. 206-212.

• M. Sankar, N. K. Batra, R. Shekhar, and S. P. Mehrotra: “Roasting, reduction and leaching of Indian ilmenite ore for producing synthetic rutile,” Trans. Indian Institute of Metals, v 59, 2006, pp. 381-387.

• S. P. Mehrotra and R. Shekhar:"Particle suspension in air-agitated Pachuca tanks: Investigation of hysterisis and a novel split air injection technique," Metallurgical and Materials Transactions B, vol. 32B, April 2001, p. 223.

• G. G. Roy, R. Shekhar and S. P. Mehrotra: "Particle suspension in (air-agitated) Pachuca tanks," Metallurgical and Materials Transactions B, vol. 29B, April 1998, p. 339.

• T. Chandrashekhar, R. Shekhar and S. P. Mehrotra: "Solid-liquid mass transfer in air-agitated Pachuca tanks," Transactions of the Institution of Mining & Metallurgy, Section C, vol. 107, 1998, p. C151.

• N. K. Nath, N. Chakraborti and R. Shekhar: "Reduction of Indian nickeliferrous ore with gas flowing vertically through the bed," Scandinavian Journal of Metallurgy, vol. 27, 1998, p. 14.

• N. K. Nath, N. Chakraborti and R. Shekhar: "Reduction of Indian nickeliferrous ore with gas flowing horizontally over the bed," Scandinavian Journal of Metallurgy, vol. 26, 1997, p. 158.

• G. G. Roy and R. Shekhar : "Oxygen mass transfer in (air-agitated) Pachuca Tanks: Part II: Mathematical modelling of mass transfer coefficients," Transactions of the Institution of Mining & Metallurgy, Section C, vol. 105, 1996, p. C16.

• G. G. Roy and R. Shekhar: "Oxygen mass transfer in (air-agitated) Pachuca Tanks : Part I Laboratory-scale experimental measurements," Transactions of the Institution of Mining & Metallurgy, Section C, vol. 105, 1996, p. C9.

• R. Shekhar and J. W. Evans: "Physical Modelling studies of electrolyte flow due to gas evolution and some aspects of bubble behaviour in Advanced Hall Cells: Part III Predicting the performance of advanced Hall cells," Metallurgical Transaction B., February 1996, p. 19.

• N. K. Nath, N. Chakraborti and R. Shekhar: "Selective reduction of nickeliferrous ore : Part I Single pellet experiments," Scandinavian Journal of Metallurgy, vol. 24, 1995, p. 121.

• R. Shekhar and J. W. Evans: "Physical Modelling studies of electrolyte flow due to gas evolution and some aspects of bubble behaviour in Advanced Hall Cells: Part II Flow and interpolar resistance in cells with a grooved anode," Metallurgical Transaction B., June 1994, p. 341.

• R. Shekhar and J. W. Evans: "Physical Modelling studies of electrolyte flow due to gas evolution and some aspects of bubble behaviour in Advanced Hall Cells: Part I Flow in cells with a flat anode," Metallurgical Transaction B., June 1994, p. 333.

• R. Shekhar and J. W. Evans: "Fluid flow and interpolar resistance measurements in Advanced Hall-Heroult cells," Mineral Processing and Extractive Metallurgy Review' Vol. 9, 1992. p. 135.

• R. Shekhar and J. W. Evans: "Fluid flow in Pachuca (air agitated) tanks. Part II: Mathematical Modelling of flow in Pachuca Tanks." Metallurgical Transaction B., December 1990, p.191

• R. Shekhar and J. W. Evans: "Fluid flow in Pachuca (air agitated) tanks. Part I: Laboratory-scale experimental measurements," Metallurgical Transaction B., December 1989, p.781.

Solar thermal energy

• Vishwa Deepak Kumar, Laltu Chandra, Sudipto Mukhopadhyay, Rajiv Shekhar: “Simulated experimental assessment of a laboratory-scale solar convective furnace system,” Journal of Solar Energy Engineering, v 145(4), 2023, pp. 041011 (1-11).

• Vishwa Deepak Kumar, Gurveer Singh, Laltu Chandra, Sudipto Mukhopadhyay, Rajiv Shekhar : “A multi-zone unsteady heat transfer model for an open volumetric air receiver: a step towards scale-up and design optimization,” International Journal of Heat and Mass Transfer, v 191, 2022, https://doi.org/10.1016/j.ijheatmasstransfer.2022.122747.

• P. Sharma, L. Chandra, P. S. Ghoshdastidar, R. Shekhar: “ A novel approach for modelling fluid flow and heat transfer in an open volumetric air receiver using ANSYS-FLUENT,” Solar Energy, v 204, 2020, pp. 246-255.

• G. Singh, V. Kumar, P. S. Ghoshdastidar, R. Shekhar, L. Chandra: “One-dimensional zonal model for the unsteady heat transfer analysis in an open volumetric air receiver,” Accepted for publication, J Therm Sci Eng Appl, v 13, 2021, pp. 011011.

• Patidar, S. Tiwari, P. Sharma, R. Pardeshi, L. Chandra, R. Shekhar: “Solar convective furnace for metals processing,” JOM, v 67, 2015, pp. 2696-2704.

• G. Singh, D. Saini, N. Yadav, L. Chandra, R. Shekhar: “Dust Deposition Mechanism and Cleaning Strategy for Open Volumetric Air Receiver Based Solar Tower Sub-systems,” Energy Procedia, v 69, 2015, pp. 2081-2089.

• P. Sharma, R. Sarma, L. Chandra, R. Shekhar, P. S. Ghoshdastidar: “On the design and evaluation of open volumetric air receiver for process heat applications,” Solar Energy, v 121, 2015, pp. 41-55.

• P. Sharma, R. Sarma, L. Chandra, R. Shekhar, P. S. Ghoshdastidar: "Solar tower based aluminium heat treatment system: Part I. Design and evaluation of an open volumetric air receiver," Solar Energy, v 111, 2015, pp. 135-150.

• D. Patidar, S. Tiwari, P.K. Sharma, L. Chandra, R. Shekhar: “Open volumetric air receiver based solar convective aluminum heat treatment furnace system,” Energy Procedia, v 69, 2015, pp. 506- 517.

Electroremediation

• N. Shukla, M. K. Harbola, K. Sanjay, R. Shekhar: “Electrochemical fencing of Cr(VI) from industrial wastes to mitigate ground water contamination,” Trans Indian Inst Met, v 70, 2017, pp. 511-518.

• K. Sanjay, R. P. Das, R. Shekhar, : “Electroosmotic pump: “Rate controlling mechanism for unusually fast electroremediation kinetics of Cr(VI) in basic Kanpur soil,” Electrochimica Acta, v 86, 2012, pp. 80-88.

• K. Sanjay, R. Shekhar: “Electrokinetic cleaning of industrial residues,” Trans. Inst. Min. Metall. C, v 121, 2012, pp. 117-120.

• K. Sanjay, Arora, R. Shekhar and R P Das: “Electroremediation of Cr(VI) Contaminated Soils: Kinetics and Energy Efficiency,” Colloids and Surfaces A: Physicochemical and Engineering Aspects, vol. 222, 2003, pp. 253-259.

• M. Manna, K. Sanjay, R. Shekhar: “Electrochemical Cleaning Of Soil Contaminated With A Dichromate Lixiviant,” International Journal of Mineral Processing, vol. 1696, 2003, pp. 401-406.

Electrochemical Drilling

• D. S. Bilgi, R. Kumar, V. K. Jain, R. Shekhar: “Predicting Radial Overcut in Deep Holes Drilled by Shaped Tube Electrochemical Machining,” International Journal of Advanced Manufacturing Technology, v 39 (1-2), 2008, pp. 47-54.

• D. S. Bilgi, V. K. Jain, R. Shekhar, A. V. Kulkarni: “Hole quality and interelectrode gap dynamics during pulse current electrochemical deep hole drilling,” International Journal of Advanced Manufacturing Technology, v. 34, 2007, pp. 79-95.

• D. S. Bilgi, V. K. Jain, R. Shekhar, S. Mehrotra:” Electrochemical deep hole drilling in super alloy for turbine application,” Journal of Materials Processing Technology, v 149, 2004, pp. 445-452

• S. Sharma, V. K. Jain and R. Shekhar: “Electrochemical drilling of inconel superalloy with acidified NaCl electrolyte,” International Journal of Advanced Manufacturing Technology, vol. 19, 2002, pp. 492 – 500.

Materials Processing

• Ajeet K Srivastav, Rajiv Shekhar: "Nucleation and growth mechanism of Co-Pt alloy nanowires electrodeposited within alumina template," Journal of Nanoparticle Research, v 17, 14, 2015.

• V. Kumar, Govind, K. Philippe, K. Balani: “Processing and nano-mechanical characterization of Mg-Li-Al based Alloys,” Procedia Materials Science, v 5, 2014, pp. 585–59.

• A. K. Srivastav, R. Shekhar, “Crystal anisotropy induced temperature dependent magnetization in cobalt nanowires electrodeposited within alumina template,” Journal of Magnetism and Magnetic Materials, v 349, 2014, pp. 21-26.

• M. Karnik, A. Ghosh, R. Shekhar, “The mechanism of electrochemical discharge (ECD),” Key Engineering Materials, v 572, 2014, pp. 295-299.

• V. Kumar, Govind, R. Balasubramaniam, R. Shekhar, K. Balani: “Microstructure evolution and texture development in thermomechanically processed Mg–Li–Al based alloys,” Mater. Sci. Eng. A, v 547, 2012, pp. 38–50.

• V. Kumar, R. Balasubramaniam, R. Shekhar, K. Balani: “Microstructure and texture evolution during hot rolling of Mg-9Li-7Al-1Sn alloy for aerospace application,”  Material Science Forum, v 702-703, 2012, pp. 85-88.

• K. Shiva Kumar, A. Roy, A. Raghunath, R. C. Sharma, R. Shekhar: “Feasibility and kinetics of nitriding of pure titanium and Ti-6Al-4V in the molten salt bath of potassium nitrate,” Surface Engineering, v 28, 2012, pp. 458-463.

• V. Kumar, Govind, R. Shekhar, K. Balani: “Effect of hot rolling on microstructure and texture evolution of Mg-Li based alloy,” Material Science Forum, v 690, 2011, pp. 347-350.

• M. Karnik, A. Ghosh, R. Shekhar, “Polarity dependence of the electrochemical discharge(ECD),” Key Engineering Materials, v 486, 2011, pp. 131-134.

• M. Karnik, A. Ghosh, R. Shekhar: “Fused deposition process combining electrochemical discharge with high speed selective jet electrodeposition,” Trans IMF, v 87 (5), 2009, pp. 264-271.

• A. Roy, S. J. Parihar, A. Singh, R. C Sharma, R. Shekhar: “Quench hardening of 0.4 % C steel by using aqueous electrolyte plasma as heat source,” Surface Engineering, v 25 (6), 2009, pp.423- 429.

• D. Pradhan, T. Sripadmini, P. Pradhan, M. Katiyar, and R. Shekhar: “Effect of electrode configuration and mode of deposition on magnetoresistance in electrodeposited Co/Cu multilayers on n-Si by a fully electrochemical method,” Electrochimica Acta, v 54 (2), 2008, pp. 430-433.

• A. Roy, R. K. Tewari, R.C. Sharma, R. Shekhar: “Aqueous electrolyte plasma nitriding: A feasibility study,” Surface Engineering, v 23, 2007, pp. 243-246.

Transmission expansion planning

• N. Gupta, R. Shekhar, P. K. Kalra: "Computationally efficient composite transmission expansion planning: a pareto optimal approach for techno-economic solution,” accepted for publication, International Journal of Electrical Power and Energy Systems, v 63, 2014, pp. 917-926.

• N. Gupta, R. Shekhar, P. K. Kalra: “Probabilistic transmission expansion planning: congestion management based roulette wheel simulation for optimal capacity,” International Journal of Electrical Power and Energy Systems, v 43, 2012, pp. 1259-1266.

Energy policy

• R. Shekhar: “Time to tap solar thermal energy,” in Financial Express, 07/01/2015, New Delhi.

• P. K. Kalra, R. Shekhar and V. Shrivastava: “Rural Electrification,” in India Infrastructure Report 2007, 3I Network, Ed. A. Rastogi, Oxford University Press, New Delhi, 2007, p. 138.

• P. K. Kalra and R. Shekhar: “Urban Energy Management,” in India Infrastructure Report 2006, 3I Network, Ed. A. Rastogi, Oxford University Press, New Delhi, 2006, p. 190.

• P. Chitkara, R. Shekhar and P. K. Kalra: “Inter-state transmission of electricity: lessons from the Northern regional grid collapse,” India Infrastructure Report 2002, 3I Network, Eds. S. Morris and R. Shekhar, Oxford University Press, New Delhi, 2001, p. 249.

• P. Chitkara, R. Shekhar and P. K. Kalra: “Missing Interconnections in the Power Systems, India Infrastructure Report 2001, 3I Network, Ed. S. Morris, Oxford University Press, New Delhi, 2001, p. 94.

Sponsored

• “Establishing a centre of excellence in solar thermal research and education at IIT Jodhpur,” MNRE, September 2011 – August 2016, 40 crores, (with several faculty from IIT Jodhpur). Was PI¹ till November 2013.

• “Development of the International Center for Application of Solar Energy Technologies,” Asian Development Bank, January 2012 – June 2014, US$200,000, (with L. Chandra of IIT Jodhpur). Was PI till November 2013.

• “Development of magnetic field sensors based on metallic multilayers with high magnetoresistive sensitivity,” ARMREB (DRDO), October 2007 – September 2009, 22.65 lakhs (with Prof. M. Katiyar).

• “Aqueous Nitriding of Steels by Electrolyte Plasma: Kinetics, Design, and Scale-up,” DST, New Delhi, August 2007 – March 2010 (with R. C. Sharma and Prof. R. K. Thareja),Rs. 18.27 lakhs

• “Molten salt electrodeposition of rare-earths and actinides,” BRNS, DAE, of India, June 2004 – March 2008, Rs. 21.16 lakhs.

• “Electroremediation of Heavy Metal Contaminated Soils: Pilot-Scale Studies for Technology Development,” MHRD, of India, April 2003 – March 2005, Rs. 8 lakhs.

• “Electrodeposition of  magnetic  multilayers  with  high  giant  magnetoresistance,”  ARMREB (DRDO), November 2002 – October 2005. (with Prof. M. Katiyar).

• “The analysis of fused deposition through electrochemical discharge,” DST, New Delhi, April 2002 - March 2005 (with A. Ghosh)

• "Electroremediation of heavy metal contaminated soil: Design, scaleup and optimisation," CSIR, New Delhi, April 2000 - March 2003 (in collaboration with Regional Research Laboratory, Bhubaneshwar).

• “Design and development of shaped tube pulse electrochemical machining for drilling deep microholes in inconel alloys,” DST, Govt. of India, New Delhi, April 2001– March 2003 (with V. K. Jain).

• "Studies on magnetohydrodynamics in electrically driven melt flow," DST, Govt. of India, New Delhi, April 1995 – March 2001 (with S. P. Mehrotra).

• “Reclamation of values from industrial wastes and effluents," AICTE, New Delhi, April 1995 – March 1999 (with S. P. Mehrotra).

• "Design, scaleup and optimisation of Pachuca tanks," BRNS, Department of Atomic Energy, April 1992 - June 1995 (with Prof. S. P. Mehrotra).

Consultancy

• “Identification of suitable business opportunities,” Shree Cements Ltd., Kolkata, Rs. 6.35 lakhs, April 2010 – September 2010.

• “Modelling of the electrorefining cell in the pyroprocessing demonstration facility,” IGCAR, Kalapakkam, 15.0 lakhs, April 2008 – March 2010.

• “Determining the commercial feasibility of manufacturing silicon and a mineral-related plant,” Shree Cements Pvt. Ltd., Kolkata, Rs. 1.34 lakhs, March 2008 – October 2008.

• “Day ahead auction software for power exchange,” National Commodity & Derivatives Exchange Limited (NCDEX), Mumbai, Rs. 5.0 lakhs, October 2006 – February 2007 (with Prof. P. K. Kalra).

• “Prefeasibilty studies for identifying training needs by electric distribution utilities,” Institute of International Education (IIE), Washington, D.C. (U.S.A.), Rs. 5.0 lakhs, May 2004 (with Prof. P. K. Kalra).

• "Development of an integrated software platform for evaluating Environmental Impact Assessment reports of thermal power plants," Infrastructure Development and Finance Company, Mumbai, 8.0 lakhs, August 2000 - August 2002.

• "Achieving refractory consumption of international benchmark level in integrated steel plants," RDCIS, SAIL, Ranchi, Rs. 13.0 lakhs, October 1999 - June 2002 (with Prof. N. N. Kishore and Prof. P. K. Kalra).

• “Use of slotted anodes to achieve power saving in pots of HINDALCO,” Accenture , New Delhi, Rs. 0.75 lakhs, January 2001 – February 2001.

• Introduction to manufacturing processes.

• Fluid mechanics

• Metallurgical kinetics.

• Principles of metal extraction and refining.

• Unit operations in extractive metallurgy.

• Process plant design for metallurgical engineering operations.

• Heat and mass transfer.

• Electrochemical technology in materials processing.

• 24 years of teaching and research experience at IIT Kanpur with focus on industrial applications.

• Well-rounded, go-getter academic with experience ranging from institution building, engineering R&D, project management, policy, and administration.

• Multi-disciplinary expertise: metals extraction, manufacturing, environmental remediation, engineering economics, solar thermal energy, electric power system optimization and policy.

• Good understanding of process for scaling technology from laboratory to industry.

• Good contacts in industry, R&D organizations, and multi-lateral institutions.

Office

Department of Materials Science & Engineering
Indian Institute of Technology Kanpur
Kanpur 208016

Office Phone: +91-512-259-7016
Cell: +919919889320

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