Efficiency of Engine
The data beside is based on a Cummins ISX in a Long Haul Class
8 application, traveling 300,000 km per year.
There are two different numbers at play when DTI talks
about the efficiency of the engine.
Mass Replacement – This is referring to the actual amount of
diesel that is being replaced by hydrogen. If the target mass
replacement is 20% per 100L of diesel, then 20L of diesel would
be replaced with 6.2kg of hydrogen.
Efficiency of Engine – The addition of hydrogen in a diesel
engine allows for a more complete combustion of diesel and
reduces the build up of carbon in the engine. Replacing diesel
with hydrogen will allow the engine to travel the same distance
while consuming less diesel.