Efficiency
From Free net encyclopedia
Efficiency may refer to:
- Energy efficiency, useful work per quantity of energy
- Energy conservation, reducing the use of energy
- Electrical efficiency, useful power output per electrical power consumed
- Fuel efficiency, converting energy in fuel to kinetic energy or work
- Lighting efficiency, visible light from a light source per unit of energy, in lumens per watt
- Mechanical efficiency, the effectiveness of a simple machine, mechanical advantage over ideal mechanical advantage
- Thermodynamic efficiency, useful work per change in heat
- Thermal efficiency, useful work per the higher heating value of the fuel
- Efficiency (economics), a general term, to capture the amount of waste or other undesirable features
- Pareto efficiency, making one individual better off, without making any other individual worse off
- Kaldor-Hicks efficiency, like a less stringent Pareto efficiency
- The optimisation of a social welfare function
- Efficiency (statistics), a measure of desirability of an estimator
- Efficiency ratio, expenses as a percentage of revenue, etc.
- Efficiency Movement, of the Progressive Era 1890-1932, advocated efficiency in the economy, society and government
- Material efficiency, compares material requirements between construction projects or physical processes
- Specific impulse, in propulsion systems, a measure of fuel-efficiency
- Textual efficiency, density of a message
- Volumetric efficiency, in internal combustion engine design
- Algorithmic efficiency, the speed and space requirements of a computer program
- A one room apartment