Sustainable aviation research aims to make aviation environment-friendly and socially responsible by reducing aviation-caused carbon emissions and noise, and improving waste management and infrastructure.

Turbulent jet ignition is a pre-chamber initiated combustion method that allows faster combustion and allows the engine to run at ultra-lean conditions. TJI has been used in large-bore natural gas engines and F-1 racing cars.

UAVs have a widespread application due to their precision, remote operation, and extended flight duration. The propulsion system of a UAV consists of an IC engine, a starter generator, and a battery pack. A small scale propulsion systems are designed to provide small amounts of thrust ranging from micro-newtons to a few milli-newtons that are used for precise altitude and orbit corrections, drag compensations, and small impulse maneuvers.

Hydrogen can be a viable replacement for fossil fuel due to its higher energy density, higher laminar burning speed and abundance in nature. The combustion of hydrogen produces only water vapor, making it a zero-emission fuel when used in fuel cells or hydrogen combustion engines.