Ultraviolet Radiation Emissions and Illuminance in Different Brands of Compact Fluorescent Lamps

Shahram Safari,Sina Eshraghi Dehkordy,Meghdad Kazemi,Habibollah Dehghan,Behzad Mahaki

doi:10.1155/2015/504674

Abstract

Introduction.Replacing incandescent lamps with compact fluorescent lamps (CFLs), which are three to six times more efficient, is one of the easiest methods to achieve energy efficiency. The present study aimed to evaluate relationships between UV emissions radiated and illuminance CFLs.Material and Methods. This pilot study was conducted on 16 single envelope CFLs. The illuminance and UV irradiance of various types of CFLs are measured on a three-meter long optical bench, using a calibrated lux meter and UV meter, and measurement was done in 10, 25, 50, 100, 150, and 200 cm, in three angles, including 0°, 45°, and 90°, at the ages of 0, 100, and 2000 hours. Result. UVC irradiance was not observed at the distance of 10 cm in all of lamps. The lowest value of UVB irradiance was recorded in Pars Khazar lamp, while the highest value was recorded in Etehad lamps. UVR values measured at different times showed negligible differences; the highest asset value was detected in zero times. One way ANOVA indicated that relationships between UVA irradiance and illuminance were significant (P<0.05).Conclusion. UVB irradiance in most of the lamp in 10 and 25 cm was more than occupational exposure and UVA except for the fact that Pars Khazar 60 watts and Nama Noor 60 watts were less than occupational exposure.

Highlights

Replacing incandescent lamps with compact fluorescent lamps (CFLs), which are three to six times more efficient, is one of the easiest methods to achieve energy efficiency
Because of increasing the cost of electricity in recent years people use CFLs that consume 3–6 times less energy relative to incandescent lamps and because of nature of produced light in CFLs, ultraviolet radiation is generated and light output in the CFLs is influenced by the mercury vapor pressure inside the lamp, as change in contain mercury vapor can change light output and UV irradiance; the present study aimed to evaluate relationships between UV emissions radiated and illuminance from compact fluorescent lamps
0.01 distance that people would be exposed to the lamp, even in the desk-top application UVC irradiance could not be detected in all the cases

Summary

Introduction

Replacing incandescent lamps with compact fluorescent lamps (CFLs), which are three to six times more efficient, is one of the easiest methods to achieve energy efficiency. The lowest value of UVB irradiance was recorded in Pars Khazar lamp, while the highest value was recorded in Etehad lamps. There are various energy-saving products and compact fluorescent lamp (CFLs) is one of these products. Lighting energy can be saved in many ways, including (I). Replacing incandescent lamps with CFLs which have played an important role in both industrial and domestic lighting is one of the most obvious and easiest methods to achieve energy efficiency [5]. Iran, Saudi Arabia, and Turkey are the largest consumers of electricity.

Methods

Results

Discussion

Conclusion