Publication detail

Enthalpy probe study of the expanding thermal plasma jet (IF 0,194)

Kavka T., Gregor J., Chumak O., Kopecký V., Hrabovský M.

Original Title

Enthalpy probe study of the expanding thermal plasma jet (IF 0,194)

Type

journal article in Web of Science

Language

English

Original Abstract

Effect of reduction of ambient pressure on properties of thermal plasma jet was studied for pressure range of 100 kPa - 4 kPa. Plasma jet was generated by the DC torch with water-argon stabilization. Properties of the plasma jet were measured by enthalpy probe TEKNA connected to mass spectrometer. Temperature and velocity fields within the jet were evaluated from the measured values. Variations of the chamber pressure between atmospheric and 20 kPa resulted in little changes of plasma jet parameters. Reduction of the pressure below 20 kPa led to drastic velocity rise due to transition of the plasma flow from subsonic to supersonic. CCD camera images show the under-expanded character of the flow with hot exiting plume followed by the expansion. Dependences of the plasma jet characteristics on pressure, arc current and flow rate of plasma forming gas were studied.

Keywords

thermal plasma jet; supersonic jet; enthalpy probe

Authors

Kavka T., Gregor J., Chumak O., Kopecký V., Hrabovský M.

RIV year

2005

Released

1. 1. 2005

ISBN

1093-3611

Periodical

High Temperature Material Processes: An International Journal

Year of study

9

Number

1

State

United States of America

Pages from

45

Pages to

53

Pages count

9

BibTex

@article{BUT46268,
  author="Tatiana {Kavka} and Jan {Gregor} and Oleksiy {Chumak} and Vladimír {Kopecký} and Milan {Hrabovský}",
  title="Enthalpy probe study of the expanding thermal plasma jet (IF 0,194)",
  journal="High Temperature Material Processes: An International Journal",
  year="2005",
  volume="9",
  number="1",
  pages="9",
  issn="1093-3611"
}