TITLE

Performance of Ultraviolet Germicidal Irradiation Lamps and Luminaires in Long-Term Service

AUTHOR(S)
First, Melvin W.; Banahan, Kevin F.; Dumyahn, Thomas S.
PUB. DATE
January 2007
SOURCE
Leukos;Jan2007, Vol. 3 Issue 3, p181
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
Seven years of experience operating upper-room ultraviolet irradiation systems (UVGI) in 14 homeless shelters in six cities has taught the Tuberculosis Ultraviolet Shelter Study (TUSS) many valuable lessons about maintaining uninterrupted UV services and acceptable intervals between UV lamp changes and cleaning activities. One year (9,000 hours) of continuous illumination resulted in a reduction in UVC output of the two types of low pressure mercury lamps by 17 percent for the quartz, instant start tubular lamp and 25 percent for the preheat compact lamps. The reduction over time was due to metal accumulations on the inside of the glass plus increasing opaqueness (solarization) due to UV irradiation. Cleaning frequency was found to be highly site-specific. Lamp failure was infrequent and within the manufacturers' stated life period.
ACCESSION #
24238855

 

Related Articles

  • Efficacy of UV irradiation on eight species of Bacillus. Menetrez, M. Y.; Foarde, K. K.; Webber, T. D.; Dean, T. R.; Betancourt, D. A. // Journal of Environmental Engineering & Science;Jul2006, Vol. 5 Issue 4, p329 

    Ultraviolet irradiation has commonly been used in the indoor environment to eliminate or control infectious diseases such as tuberculosis in medical care facilities. Heating, ventilating, and air-conditioning (HVAC) system components such as duct-liners, cooling coils, drip-pans, interior...

  • Synchronized sunbathing?  // Reflections on Nursing Leadership;2006 3rd Quarter, Vol. 32 Issue 3, p8 

    The article provides information on heliotherapy. Exposure to the sun or heliotherapy was commonly used for treatment of tuberculosis and other pulmonary diseases before the discovery and clinical use of antibiotics. Some treatment centers used natural heliotherapy for treating patients with...

  • Making waves. Lee, Andrew // Engineer (00137758);9/12/2003, Vol. 292 Issue 7635, p11 

    Reports on Quay Technologies' microwave-powered ultraviolet lamps used for killing germs in water, sewage and food in Great Britain. Capability of the transmissive waveguide; Advantages of the system over standard UV purification units; Ideal wavelength for disinfection.

  • Shining the light on lamp developments. Davis, Dan // Industrial Paint & Powder;Jul98, Vol. 74 Issue 7, p28 

    Focuses on the lamp developments made with ultraviolet raw materials. Views of lamp manufacturers in relation to their lamps; Information on the excimer lamps; Comments made by David Blake, vice president of sales and marketing for Fusion UV Curing Systems company.

  • High power UV light puts new glow into testing.  // Professional Engineering;10/07/98, Vol. 11 Issue 18, p62 

    Reports on the use of an ultraviolent (UV) lamp, for which fluorescent objects glow at distances of several hundred meters when illuminated with it. Information on the lamp; Advantages of the UV lamp; Limitations of this technology; Description of gas discharge lamp.

  • Estimation of Ultraviolet-B Irradiance under Variable Cloud Conditions. Grant, Richard H.; Heisler, Gordon M. // Journal of Applied Meteorology;Jun2000, Vol. 39 Issue 6, p904 

    Reports on the relationships between the irradiance of ultraviolet-B (I-UVB) received at the surface of the Earth under partly cloudy skies. Ability to estimate I-UVB needed for assessment of biological effects of changes in atmospheric composition; Prediction equations based on...

  • Effect of narrowband ultraviolet B phototherapy on melanocytic naevi.  // Current Medical Literature: Dermatology;2013, Vol. 18 Issue 2, p50 

    A letter to the editor is presented in response to the article "Effect of narrowband ultraviolet B phototherapy on melanocytic naevi" by C.Y. Lin and colleagues in a 2013 issue.

  • Surface UV-B irradiance and total column ozone above SANAE, Antarctica. Prause, A. R.; Scourfield, M. W. J.; Bodeker, G. E.; Diab, R. D. // South African Journal of Science;Jan99, Vol. 95 Issue 1, p26 

    Presents the results of ultraviolet (UV) irradiance measurements made at SANAE, the South African Antarctic base. Data acquisition and modelling; Factors influencing surface UV irradiance; Conclusion.

  • Ground-based measurements of UVB in Namibia. Cunningham, P. F.; Bodeker, G. E. // South African Journal of Science;Nov/Dec2000, Vol. 96 Issue 11/12, p547 

    Presents information on a study which conducted the first ground-base measurements of surface erythemal (sunburn-causing) ultraviolet irradiances at a number of locations in Namibia. Methodology and results of the study; Implications of the study.

Share

Read the Article

Courtesy of THE LIBRARY OF VIRGINIA

Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics