Through the Future Engine Technology Environmental Impact study, ENVISA investigated the potential environmental benefit of hydrogen engines compared to the evolution of technology for conventional kerosene engines.
The growing shortage of fuel supplies and the ever-increasing interest in environmental concerns are encouraging the aeronautical community to develop new types of aircraft propulsion. Among the different modes of propulsion studied, hydrogen seems to be the most promising for the next decades. Apart from helping to overcome the fuel supply problem, hydrogen engines offer the great advantage of creating only water vapour and NOx exhaust.
ENVISA compared the environmental impacts of two scenarios: