Performance and Environmental Assessment of Hydrogen Supply in Jet A-1 Fueled Turbojet Engine
11th Azerbaijan Congress on Life, Engineering, Mathematical, And Applied Sciences, Baku, Azerbaijan, 21 - 22 June 2025, vol.1, pp.632-652, (Full Text)
- Publication Type: Conference Paper / Full Text
- Volume: 1
- City: Baku
- Country: Azerbaijan
- Page Numbers: pp.632-652
- Süleyman Demirel University Affiliated: Yes
Abstract
In this study, the effects of increasing rates of hydrogen (H2) addition to Jet A-1 fuel on engine
performance, exhaust emissions, efficiency and environmental/social costs were investigated
experimentally on a small-scale turbojet engine (JetCat P80-SE). The experiments were carried out at
different H2 flow rates between 0 and 200 L/min at a constant engine speed of 40,000 rpm. According
to the results obtained, H2 addition increased the engine efficiency by providing an increase of nearly
70% in the specific power value of the engine, especially at low and medium rates, and at the same
time, it significantly reduced the total fuel consumption and power-specific fuel consumption. While
the exhaust temperature increased at low rates, it remained constant or decreased at high rates. With
the addition of H2, a continuous decrease was achieved in CO, CO2 and HC emissions, while a slight
increase was observed in NOx emissions at the beginning, but this increase decreased as the H2 energy
fraction in the total fuel increased. Combustion efficiency increased from 98.3% to 99.1%, while
significant reductions in environmental costs, especially in carbon-based components, were achieved.
The findings show that H2, when used as an additive fuel with Jet A-1, not only improves engine
performance but also environmental sustainability.