HCNG (30H2+70 CNG) fuel mixture was examined in a non-modified diesel engine.
A stepping motor mounted to fuel pump plunger for 25% and 50% diesel replacement rates.
Best improvements for SFC, NOx and CO2 are 26.8%, 47.2% and 16.7% respectively.
Brake torque, brake power, BTE and CO results were also determined and visualized.
Minor cost analysis was performed and supported with an example.