DocumentCode :
2647646
Title :
Net emission coefficient emitted from high temperature argon-iron and argonmercury gases
Author :
Miyajima, T. ; Iwao, T. ; Yumoto, M.
Author_Institution :
Dept. of Electr. & Electron. Eng., Musashi Inst. of Technol., Tokyo
fYear :
2006
fDate :
4-8 June 2006
Firstpage :
201
Lastpage :
201
Abstract :
Summary form only given. The characteristic of plasma arc is high temperature, high intense radiation and high energy. Especially, the UV radiation power can be applied for sterilization. In this paper, the number density and net emission coefficient for high temperature argon mixed with iron and mercury vapors are calculated by using a line spectrum emission, free-bound emission, and free-free emission equations. The calculation conditions are under 1% of the mixed ratio of iron and mercury vapors, and 0.1 MPa from 6,000 to 15,000 K. As a result, the high net emission coefficient of UV rays of argon-iron and argon-mercury were obtained. Fe II of argon-iron and Hg I of argon-mercury are dominant. The radiation illumination was calculated from net emission coefficient in order to know the UV rays sterilization effect. In the case of argon-mercury, a strong emission was obtained by 253.7 nm in wavelength. However, the net emission coefficient emitted from argon-iron is higher than that of argon-mercury in the UV rays (250-260 nm). The UV ray emission efficiency (%/W) is 25.7% of argon-iron, and 4.40% of argon-mercury. The amount of UV rays is enough for sterilization. Therefore, the argon-iron is applicable to UV rays sterilization
Keywords :
arcs (electric); argon; gas mixtures; iron; mercury (metal); plasma density; plasma diagnostics; plasma sources; 0.1 MPa; 25.7 percent; 250 to 260 nm; 4.40 percent; 6000 to 15000 K; Ar-Fe; Ar-Hg; UV radiation power; UV rays sterilization; free-bound emission; free-free emission equations; high intense radiation; high temperature radiation; line spectrum emission; net emission coefficient; number density; plasma arc; radiation illumination; Argon; Equations; Gases; Iron; Lighting; Mercury (metals); Plasma density; Plasma properties; Plasma temperature; Power engineering and energy;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Plasma Science, 2006. ICOPS 2006. IEEE Conference Record - Abstracts. The 33rd IEEE International Conference on
Conference_Location :
Traverse City, MI
Print_ISBN :
1-4244-0125-9
Type :
conf
DOI :
10.1109/PLASMA.2006.1707073
Filename :
1707073
Link To Document :
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