Oddelenie environmentálnej fyziky - Prihlásený: igor
Katedra astronómie, fyziky Zeme a meteorológie, FMFI UK, Bratislava,

Corona discharge as a temperature probe for atmospheric air microwave plasma jet

Leštinská L., Martišovitš V., Machala Z.
J. Quant. Spec. Rad. Transfer 112, 2779-2786 (2011)

download  

Abstrakt:

We developed and tested a new method for temperature measurements of near-LTE air plasmas at atmospheric pressure. This method is specifically suitable for plasmas at relatively low gas temperature (800-1700 K) with no appropriate radiation for direct spectroscopic temperature measurements. Corona discharge producing cold non-equilibrium plasma is employed as a source of excitation and is placed into the microwave plasma jet. The gas temperature of the microwave plasma jet is determined as the rotational temperature of N2* produced in the corona discharge. The corona probe temperature measurement was tested by the use of a thermocouple. We found a fairly good agreement between the two methods after correcting the thermocouple measured temperatures for radiative losses. The corona probe method can be generally applied to determine the temperature of the near-LTE plasmas and contrary to the thermocouple it can be used for higher plasma temperatures and is not affected by radiative losses and problems of interaction with the microwave plasma and electromagnetic fields.

Citácie:

1.)	Misra N.N., Segat A., Cullen P.J., Atmospheric-Pressure Non-Thermal Plasma Decontamination of Foods, ADVANCES IN FOOD BIOTECHNOLOGY, Ed. Rai V.R., 565-574 (2016), SCI cit. (2016) -------------
2.)	Elsaadany M.; Subramanian G.; Ayan H., Yildirim-Ayan E.: Exogenous nitric oxide (NO) generated by NO-plasma treatment modulates osteoprogenitor cells early differentiation, J. Phys. D: Appl. Phys. 48 (2015) 345401, SCI cit. 52 (2015) -------------
3.)	Ismail N., Ani F.: A review on plasma treatment for the processing of solid waste; Jurnal Teknologi, 72 (2015) 41-49, SCOPUS (2015) -------------
4.)	WT Chang, Y Liang: Dynamic Temperature Profiles of Plasma Neutralization Induced by Microwave Irradiation, Advanced Materials Research 849 (2014), 405-410, SCI (2014) -------------
5.)	L. Liu, Z. Zhang, Z. Peng and J. Ouyang: Comparison of point-to-plane corona in different gases, J. Phys.: Conf. Ser. 418 (2013) 012092, cit. 4 - SCI (2013) -------------
6.)	Zhai XD.; Ding YJ.; Peng ZM.; Luo R.: Concentration measurement of NO using self-absorption spectroscopy of the gamma band system in a pulsed corona discharge, APPLIED OPTICS 51, 4605-4611 (2012), SCI (2012) -------------