350 rub
Journal Electromagnetic Waves and Electronic Systems №10 for 2016 г.
Article in number:
Improvement of sintered thermoelectrodes of high pressure sodium lamps
Keywords: sodium discharge lamp sintered electrode hollow cathode electrode surface temperature
Authors:
V.V. Prasitsky - Dr.Sc. (Eng.), Professor, Kaluga Branch, Bauman MSTU E-mail: sintel40@yandex.ru Kyaw Zay - Post-graduate Student, Kaluga Branch, Bauman MSTU E-mail: kyawzay49@gmail.com
Abstract:
Research and development of sintered electrodes for discharge lighting high pressure sodium lamps have been conducted for a long time. Relevance of the work is still high due to the fact that sodium discharge lamps have a high light output in excess of 150 lm/W, which makes them the most economical source of artificial lighting. However, the service life of the lamps is limited by durability of widely used spiral electrodes, containing insufficient amount of emission-active substances, and working in sub-optimal thermal con-ditions. In this paper, analysis of physical phenomena on the surface of the emission electrode when subjected to discharge plasma made it possible to more fully ascertain the shortcomings of massively used spiral electrodes, as well as identify ways to further improve the sintered electrodes increasingly used in high pressure sodium lamps with high performance. Increasing the longevity of the electrode while reducing ignition voltage discharge electrode structure is provided which provides a realization of the «hollow cathode» effect at the time of power-up and heat emission-protection active substance when burning arc.
Pages: 60-64
References

 

  1. Rokhlin G.N. Razrjadnye istochniki sveta. M.: EHnergoatomizdat. 1991. 720 s.
  2. Rajjzer JU.P. Fizika gazovogo razrjada. M.: Nauka. 1987 592 s.
  3. Ataev A.E. Zazhiganie rtutnykh razrjadnykh istochnikov izluchenija vysokogo davlenija. M.: MEHI. 1995. 168 s.
  4. Uehjjmaus D. Gazorazrjadnye lampy. M.: EHnergija. 1977. 344 s.
  5. Bondarenko G.G., Kristja V.I., Prasickijj V.V., Fisher M.R. Modelirovanie teplovogo balansa ehlektrodov v osvetitelnykh lampakh dugovogo razrjada peremennogo toka // Naukoemkie tekhnologii. 2002. № 5. S. 30-34.
  6. Lisovskijj V.A., Bogodelnyjj I.A. Zazhiganie i rezhimy gorenija razrjada postojannogo toka s polym katodom // Journal of Kharkiv National University. 2012. № 1025. S. 43-53.
  7. Kudinceva G.A, Melnikov L.I., Morozov A.V., Nikonov B.P. Termoehlektronnye katody / Pod red. N.D. Devjatkova. M.-L.: EHnergija. 1966. 366 s.