fuelinefficiency
Fuelinefficiency is the condition in which energy contained in fuels is not efficiently converted into useful work, causing higher fuel consumption for a given output. It can occur in transportation, electricity generation, and industrial processes, and is commonly described by the amount of fuel required per unit of service, or by energy losses within a system. The term encompasses both design limitations and operating practices that waste energy as heat, friction, or unused exhaust.
Causes include thermodynamic losses during combustion, mechanical friction, parasitic losses from pumps and auxiliaries, aerodynamic drag,
Measurement and indicators include fuel economy metrics (such as liters per 100 kilometers or miles per gallon),
Fuelinefficiency has economic and environmental impacts, increasing fuel costs, reducing energy security, and elevating emissions of
Mitigation approaches focus on increasing conversion efficiency and reducing energy losses. Examples include advanced engine designs,