Dependence of Round Type Electrodeless Lamp According to Ferrite Core and Cold Spot Temperature

둥근형 무전극 램프의 페라이트 코어와 냉점의 온도 의존성

  • 김남군 (원광대 전자재료공학과) ;
  • 양종경 (원광대 전자재료공학과) ;
  • 이종찬 (금호전기(주) 부설연구소) ;
  • 한후석 (기초전력연구원 전기에너지 변환시스템 연구실) ;
  • 박지식 (한국산업기술대학교 지식기반기술 에너지대학원) ;
  • 박대희 (원광대학교 전기전자및정보공학부)
  • Published : 2008.05.01

Abstract

Generally Lighting system consists of lamp and luminaire. When a fluorescent lamp is installed in luminaire, power and light output is changed by ambient temperature. Particularly electrodeless lamp depends on the changes that are mercury pressure with amalgam temperature and magnetic properties with ferrite temperature. It has finally influence on optical efficiency. In this study, the temperature change of ferrite and cold spot, vessel are measured at transitional state and then same characteristics are measured with increase of ambient temperature. At transitional state, luminous flux is related to temperature change of cold spot that compare with behavior of mercury pressure and light output. At increase of ambient temperature, we analyzed change that efficiency and electrical, optical characteristics of elecrodeless lamp are related to ferrite core and cold spot temperature. Additionally, spectrum, color temperature and coordination are measured to check that is relation with ambient temperature.

Keywords

ICP;Electrodeless lamp;ferrite core;amalgam

References

  1. S. H. Chen, S. C. Chang, I. N. Lin "The influence of grain boundary internal stress on permeability: temperature curve for Mn-Zn ferrites", Journal of Magnetism and Magnetic Materials Vol.209, Issues 1-3, Pages 193-196, February 2000 https://doi.org/10.1016/S0304-8853(99)00685-X
  2. Piejak R, Godyak V A and Alexandrovich B, "A simple analysis of an inductive RF discharge", Plasma Sources Sci, Technol. 1 pp179-186, 1992 https://doi.org/10.1088/0963-0252/1/3/006
  3. Oleg Popov, Jakob Maya, "Characteristics of electrodeless ferrite-free fluorescent lamp operated at frequencies of 1-15 MHz", Plasma Sources Sci. Technol. 9, 227-237, 2000 https://doi.org/10.1088/0963-0252/9/2/317
  4. 이상석, "MHz 대역에서의 Impedance Analyzer를 이용한 Ni-Zn Ferrite의 투자율 측정에 관하여", 포항공대 석사학위논문, 1992
  5. Richard Speer, Philip Moskowitz, Jeff Holt "Transient State Mercury Transport During the Run-Up Phase of Inductively Coupled Fluorescent Lamps", The 11th international Symposium on the science & technology of light source, pp.585-589, 2007
  6. "ICETRON Design Guide"
  7. Wharmby, D. O., "Electrodeless lamps for lighting: a review", Science Measurement and Technology, IEE Proceedings A, Vol.140, pp.465-473, 1993
  8. V. A Godyak., "A New high output electrodeless fluorescent light source", The 8th international Symposium on the science & technology of lightsource, pp.14-23,1998
  9. Ron van Os, David Chazen., "Amalgam system for electrodeless discharge lamp" US Patent 5598069 Issued on January 28, 1997
  10. Yunoue. N, Harada. K, Ishihara. T, "A self-excited electronic ballast for electrodeless fluorescent lamps operated at l0MHz", IEEE APEC, pp. 2019-2024, March, 2002
  11. "Lighting Research center - How is performance affected by ambient temperature?" http://www.lrc.rpi. edu/ index. asp
  12. X. H. Cao J. "Design Orientated Model and Application of Electronic Ballasts for Two Toroidal Ferrite Coupled Electrodeless lamps", IEEE APEC, pp. 1764-1769, 2005
  13. Eugen Statnic, Valentin Tanach, "Investigation of the electrical discharge parameters in electrodeless inductive lamps with a re-entrant coupler and magnetic core", Plasma Sources Sci. Technol. 15, pp 465-473, 2006 https://doi.org/10.1088/0963-0252/15/3/023
  14. 이근철, 최호열 "토로이드 코어 활용 백과 p.. 24-41
  15. V. A Godyak, K. Ohata., "Radio Frequency Light Sources", Industry Applications Conference, Conference Record of the 2002 IEEE, Vol.5, pp. 3281-3288, 2000
  16. Serres, A.W.,Taelman, W., "Amalgams and compact fluorescent lamps" Industry Applications Society Annual Meeting, Conference Record of the 1993 IEEE, 1993, pp.2296-2304 1993