efficiency definition

  • noun:
    • The quality or residential property to be efficient.
    • their education to which this high quality is exercised: this system had been implemented with great effectiveness and rate.
    • The proportion of effective or of use output toward total feedback in almost any system.
    • The ratio for the energy delivered by a device toward energy supplied because of its procedure.
    • An efficiency apartment.
    • The level to which time is well-used for the intended task.
    • the caliber of making a result or results.
    • The degree to which a resource, such as electrical energy, can be used the intended function; the ratio of helpful strive to energy expended.
    • A one-room apartment.
    • the standard of becoming efficient; effectual agency; competent energy; the product quality or energy of producing desired or meant effects.
    • particularly— their state to be able or competent; hawaii of possessing or having acquired adequate understanding or ability in virtually any art, career, or responsibility: as, by patient persistence he's obtained increased level of effectiveness.
    • In mech., the ratio of this useful work done by a prime engine towards power expended. Synonyms Effectiveness, etc. See effectiveness.
    • Angström's strategy. Another method of calculating the radiant performance of a source of light is a result of Knut Ångström. An opaque display is mounted this kind of a position on cut-off all rays lying beyond the red end of this visible spectrum, together with remaining radiation is assembled upon the face of a bolometer by means of a cylindrical lens. The proportion for this volume towards complete radiation, assessed by the exact same instrument, gives the radiant effectiveness associated with source of light. The vibrant efficiency of such sourced elements of light as are measured by the two methods therefore explained is given in following table. The values acquired because of the integration regarding the energy-curves and also by Ångström's strategy are marked respectively L and A.
    • While other sourced elements of light have-not as yet been measured by these procedures, their relative efficiencies tend to be around understood, and also by contrast aided by the preceding information we all know that the radiant performance of ordinary oil- and gas-flames is all about .01, that the glow-lamp from .01 to .03, and that regarding the electric arc from .04 to .08. Gross efficiency. The expression effectiveness is also always express the ratio associated with power in light-giving kind developed in product time by a source into energy of combustion regarding the gas which it's important to take to be able to keep up with the supply during that time. The effectiveness hence defined takes into account the full total heat-losses when you look at the production of light. Regarding the flames of candles as well as oil-lamps the heat lost by convection and conduction is very large weighed against the total radiation through the flame. When it comes to gas-flames heat of combustion associated with coal essential to create the gas to keep up the flame, as compared using luminous energy emitted because of the flame, provides the gross effectiveness. In processing the gross effectiveness of electric lights the warmth of combustion of this gas familiar with produce the present provided to your lights and/or comparable number of power, whatever be its resource, will be taken. In the case of a steam-plant for electric lighting the losses by dissipation of temperature inside boiler, motor, dynamo, and lead-wires, with the reduction by convection and conduction into the electric lamp it self, all access the computation of the gross effectiveness. Whatever process for the creation of light are employed, the quantity of power dissipated for the intended purpose of acquiring luminous radiation is extremely great, plus the gross efficiency of luminous flames found in lighting ranges from .001 to .002, while the gross efficiency of electric lights in best existing conditions the creation of power is little if any above these figures. Electrical effectiveness. Its convenient regarding the electric light to express the effectiveness in watts per candle—a technique perhaps not comparable aided by the energy-ratio defined above, but useful for the contrast of the various kinds of lamp found in electric illumination. The electric efficiency regarding the ordinary lamp ranges between four watts per candle and three watts per candle, based on the temperature of this filament, compared to the arc-light from two watts per candle to 1 watt per candle (suggest spherical candle-power), whilst the efficiency of Nernst lamp is advanced between that the arc therefore the glow-lamp.
    • the ratio associated with result into the feedback of any system
    • skillfulness while we are avoiding lost commitment
    • the standard or property to be efficient.
    • The degree to which this high quality is exercised: this system was implemented with great effectiveness and speed.
    • The ratio of this efficient or useful production to the total input in almost any system.
    • The proportion associated with the energy delivered by a machine into power furnished for its operation.
    • An efficiency apartment.
    • The extent to which time is well used for the intended task.
    • the caliber of producing an effect or effects.
    • The extent that a resource, such as for example electrical energy, can be used for desired purpose; the proportion of helpful strive to power expended.
    • A one-room apartment.
    • the caliber of becoming efficient; effectual agency; competent power; the quality or energy of making desired or intended impacts.
    • Specifically— The state of being able or competent; the state of possessing or having acquired adequate knowledge or skill in any art, profession, or duty: as, by patient perseverance he has attained a high degree of efficiency.
    • In mech., the proportion regarding the helpful work done by a prime engine to your energy expended. Synonyms Efficacy, etc. See effectiveness.
    • Angström's strategy. Another way of calculating the radiant effectiveness of a source of light is a result of Knut Ångström. An opaque display screen is mounted in such a situation concerning take off all rays lying beyond the red end of visible range, additionally the remaining radiation is put together upon the face of a bolometer in the shape of a cylindrical lens. The proportion of the amount to your total radiation, calculated by the exact same instrument, provides vibrant effectiveness regarding the way to obtain light. The radiant performance of such sources of light as have already been measured because of the two methods therefore explained is given within the following dining table. The values acquired because of the integration associated with the energy-curves and also by Ångström's method are marked respectively L and A.
    • While various other sourced elements of light have never as yet been assessed by these methods, their relative efficiencies are roughly known, and by comparison with all the preceding data we all know your vibrant performance of ordinary oil- and gas-flames is approximately .01, that of the glow-lamp from .01 to .03, which of this electric-arc from .04 to .08. Gross effectiveness. The definition of effectiveness is similarly regularly express the ratio associated with power in light-giving type created in device time by a source towards energy of burning for the fuel which it is crucial to consume so that you can retain the supply through that time. The performance thus defined considers the sum total heat-losses within the production of light. In the case of the flames of candle lights as well as oil-lamps the warmth lost by convection and conduction is extremely huge weighed against the sum total radiation from fire. In the case of gas-flames the heat of combustion of the coal required to produce the fuel to maintain the flame, when compared with the luminous power emitted by the flame, provides the gross efficiency. In processing the gross performance of electric lights heat of combustion of the gasoline regularly generate the existing supplied to the lights or the comparable amount of power, whatever be its supply, will be taken. In the case of a steam-plant for electric illumination the losses by dissipation of heat in boiler, engine, dynamo, and lead-wires, together with the reduction by convection and conduction in the electric lamp it self, all enter the calculation associated with the gross performance. Whatever process the production of light may be utilized, the quantity of energy dissipated for the purpose of obtaining luminous radiation is very great, and gross efficiency of luminous flames used in lighting ranges from .001 to .002, although the gross effectiveness of electric lights underneath the best current conditions when it comes to creation of power is no above these figures. Electric efficiency. Its convenient regarding the electric light to express the effectiveness in watts per candle—a strategy perhaps not comparable using energy-ratio defined above, but helpful for the comparison of the numerous types of lamp found in electric lighting effects. The electric performance of this ordinary lamp varies between four watts per candle and three watts per candle, in line with the temperature of the filament, that the arc-light from two watts per candle to one watt per candle (indicate spherical candle-power), while the performance associated with Nernst lamp is intermediate between that of the arc in addition to glow-lamp.
    • the ratio associated with production towards input of every system
    • skillfulness in avoiding lost effort and time

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