the quotient of the luminous flux of a radiation and its corresponding radiant flux
Symbol: K
2.
the quotient of the luminous flux emitted by a source of radiation and the power it consumes. It is measured in lumens per watt
Symbol: ηv, Φv
Examples of 'luminous efficacy' in a sentence
luminous efficacy
Various luminous efficacy models are reviewed and evaluated to select a universal luminous efficacy model.
Donghyun Seo 2018, 'Comparative Analysis of All-Sky Luminous Efficacy Models Based on Calculated and MeasuredSolar Radiation Data of Four Worldwide Cities', International Journal of Photoenergyhttp://dx.doi.org/10.1155/2018/8180526. Retrieved from DOAJ CC BY 4.0 (https://creativecommons.org/licenses/by-sa/4.0/legalcode)
We study the dependence of the luminous efficacy on cloudiness.
Oteiza, P., Soler, A., Yáñez, G. 1992, 'Eficacia luminosa de la radiación solar global para superficie horizontal en Madrid.España', Informes de la Construccionhttp://informesdelaconstruccion.revistas.csic.es/index.php/informesdelaconstruccion/article/view/1333/1628. Retrieved from DOAJ CC BY 4.0 (https://creativecommons.org/licenses/by-sa/4.0/legalcode)
Three representative luminous efficacy models are selected and evaluated with measured solar radiation and illuminance data from four worldwide cities.
Donghyun Seo 2018, 'Comparative Analysis of All-Sky Luminous Efficacy Models Based on Calculated and MeasuredSolar Radiation Data of Four Worldwide Cities', International Journal of Photoenergyhttp://dx.doi.org/10.1155/2018/8180526. Retrieved from DOAJ CC BY 4.0 (https://creativecommons.org/licenses/by-sa/4.0/legalcode)