Discover

'Efficiency' as a technical term may refer to:

★ Energy efficiency, useful work per quantity of energy

★
★ Energy conversion efficiency, desired energy output per energy input

★
★ 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

★
★
★ Specific impulse, in propulsion systems, a measure of fuel-efficiency

★
★ Volumetric efficiency, in internal combustion engine design

★
★ 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

★
★
★ Exergy efficiency, measure of 2nd-law themodynamic loss

★
★
★ Thermal efficiency, useful work per the higher heating value of the fuel

★
★ Radiation efficiency, ratio of radiated power to power absorbed at the terminals of an antenna

★ Efficiency (aerodynamics), for fixed wing aircraft the Lift-to-drag ratio

★ 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

★
★ Allocative efficiency, an optimal distribution of goods

★
★ The optimisation of a social welfare function

★
★ Efficiency wages, paying workers more than the market rate for increased productivity

★ 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

★ Textual efficiency, density of a message

★ Algorithmic efficiency, the speed and space requirements of a computer program

★ Quantum efficiency, a measure of sensitivity of a photosensitive device: the percentage of photons hitting the photoreactive surface that will produce an electron–hole pair

Contents

See also

See also

★ Inefficiency