To meet the growing demand for low-emission agricultural machinery, researchers are exploring
innovative and sustainable methods to reduce the environmental impact of internal combustion engines
and lower greenhouse gas emissions. This study investigates the use of hydrogen as a supplementary
fuel in diesel engines to maximize efficiency and minimize harmful emissions. The experiments were
conducted at the Green Power H2O facility, where hydrogen was tested as a complete replacement for
diesel fuel in a set of diesel engine pumps. Greenhouse gas emission levels were measured and
compared between diesel and hydrogen operation, with strict adherence to safety standards for
hydrogen usage. The tests were carried out under engine loads ranging from 30% to 70%. The results
demonstrated a successful 100% replacement of diesel with hydrogen. No greenhouse gas emissions—
carbon monoxide (CO), carbon dioxide (CO₂), or sulfur dioxide (SO₂)—were detected when using
hydrogen. The exhaust gas velocity increased to 4 meters per second with the rise in hydrogen pressure.
The water discharge rate reached 56 cubic meters per hour under the same engine load, surpassing that
of diesel operation. This research highlights the potential of hydrogen as a clean and efficient alternative
fuel, significantly reducing greenhouse gas emissions responsible for global warming while
maintaining or enhancing engine performance.
