Efficiency and efficacy of incandescent lamps

被引：26

作者：

Agrawal, DC

Leff, HS

Menon, VJ

机构：

[1] CALIF STATE POLYTECH UNIV POMONA,DEPT PHYS,POMONA,CA 91768

[2] BANARAS HINDU UNIV,DEPT PHYS,VARANASI 221005,UTTAR PRADESH,INDIA

来源：

AMERICAN JOURNAL OF PHYSICS | 1996年 / 64卷 / 05期

关键词：

D O I：

10.1119/1.18260

中图分类号：

G40 [教育学];

学科分类号：

040101 ; 120403 ;

摘要：

Planck's radiation formula is used to estimate the dimensionless efficiency of incandescent lamps as a function of filament temperature, with typical values of 2%-13%. Similarly, using the known spectral luminous efficiency of the eye, the efficacy of incandescent light bulbs is estimated as a function of temperature, showing values of 8-24 L W-1 for bulbs of 10-1000 W. The efficiency and efficacy results compare favorably with published data and enable estimation of the filament temperature for any lamp of known efficacy. (C) 1996 American Association of Physics Teachers.

引用

页码：649 / 654

页数：6