Alternative Fuels terms starting with P

3 terms

1. Passenger-Miles per Gallon Pmpg is the vehicle miles per gallon multiplied by the number of passengers traveling in the vehicle.
2. Positive Energy Balance When producing a fuel takes less energy than the amount of energy the fuel provides.
3. Pump Octane Number This number represents the ability of a fuel to resist knocking when ignited in the cylinder of an internal-combustion engine.