Title :
A Simple Method for Comparative Study on the Thermal Performance of Light Emitting Diodes (LED) and Fluorescent Lamps
Author :
Qin, Y.X. ; Lin, D.Y. ; Hui, S.Y.R.
Author_Institution :
Centre for Power Electron., City Univ. of Hong Kong, Hong Kong
Abstract :
A simple method is proposed to measure the heat dissipation of LEDs and fluorescent lamps in an open system which allows light energy to escape. Based on this method, a comparative study on the thermal and luminous performance of high-brightness LEDs and fluorescent lamps is presented. At rated power, T5 & T8 fluorescent lamps generate about 73% - 77% of their total power as heat, whilst three types of high-brightness LEDs dissipate about 87% to 90% of input power as heat. Heat dissipation is an important factor particularly for air-conditioned buildings when overall energy efficiency is considered. T5 fluorescent lamps perform better than some existing LEDs in terms of luminous efficacy and heat generation in this study.
Keywords :
air conditioning; cooling; fluorescent lamps; light emitting diodes; air-conditioned buildings; energy efficiency; fluorescent lamps; heat dissipation; light emitting diodes; luminous performance; thermal performance; Energy measurement; Fluorescent lamps; Light emitting diodes; Open systems; Petroleum; Plasma displays; Plasma measurements; Plasma temperature; Thermal management; Thermal resistance;
Conference_Titel :
Applied Power Electronics Conference and Exposition, 2009. APEC 2009. Twenty-Fourth Annual IEEE
Conference_Location :
Washington, DC
Print_ISBN :
978-1-4244-2811-3
Electronic_ISBN :
1048-2334
DOI :
10.1109/APEC.2009.4802648
