Prof. K.A. Subramanian is currently the Head of Centre for Energy Studies, Indian Institute of Technology Delhi. His main research area includes Hydrogen Energy, alternative fuelled internal combustion engines/vehicles, Hydrogen Backfire and combustion, Hydrogen Fuel Cell, Zero emission vehicles, Hybrid Systems, and Integrated Energy Systems. He is one among the Top 2% Scientist by Stanford University, 2020 in the world.

He has completed several sponsored research projects in alternative-fuelled internal combustion engines/vehicles. He has recently developed the technology for the utilization of hydrogen in spark-ignition engines for electrical power generation, and Dimethyl Ether fuelled Engines / Vehicles with the collaboration of oil and original engine manufacturers.  He has also developed alcohol fuelled engine, biogas vehicle, DME-fuelled engine/vehicle, dual-fuel engine (Hydrogen-Diesel, CNG-Diesel, Biogas-Diesel), and energy efficiency improvement using oxy-combustion.

He developed many numbers of courses including Hydrogen Energy, Zero Emission Vehicles, Bioenergy: Resources, Technologies and Assessment, Carbon Capture and Storage and Organic Waste to Energy Conversion Technology. He has guided several doctoral Ph.D. scholars and published several research papers in reputed Journals. He has filed two patents so far.  He is the author of the book “Biofueled Reciprocating Internal Combustion Engines” and co-author of another book “Alternative Transportation Fuels: Utilization in Combustion Engines” published by CRC Press (Taylor & Francis Group).