Steam-plasma igniter for aluminum powder combustion

Sanghyup Lee, Kwanyoung Noh, Jihwan Lim, Woongsup Yoon, Dohyung Lee

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

High temperature ignition is essential to the ignition and combustion of energetic metal fuels including the aluminum and magnesium particles protected by their oxides of high melting temperature. A plasma torch characterized by ultrahigh-temperature plasma plume fulfills such high-temperature ignition condition. A steam plasma igniter is newly designed and successfully validated with aluminum power ignition and combustion tests. The steam plasma rapidly stabilizes in both plasma and steam jet mode. Parametric investigation of the steam plasma jet is conducted in terms of the arc strength. A high-speed camera and oscilloscope method visualizes the discharge characteristics, and optical emission spectroscopy measures thermochemical properties of the plasma jet. Diatomic molecule OH fitting method, Boltzmann plot method, and short exposure capturing with an intensified charge coupled device record the axial distributions of the rotational gas temperature, excitation temperature, and OH radical distribution, respectively. The excitation temperature at the nozzle tip occurs near 5500 K, and the gas temperature 5400 K.

Original languageEnglish
Title of host publication50th AIAA/ASME/SAE/ASEE Joint Propulsion Conference 2014
PublisherAmerican Institute of Aeronautics and Astronautics Inc.
ISBN (Electronic)9781624103032
DOIs
Publication statusPublished - 2014
Event50th AIAA/ASME/SAE/ASEE Joint Propulsion Conference and exhibit 2014 - Cleveland, United States
Duration: 2014 Jul 282014 Jul 30

Publication series

Name50th AIAA/ASME/SAE/ASEE Joint Propulsion Conference 2014

Other

Other50th AIAA/ASME/SAE/ASEE Joint Propulsion Conference and exhibit 2014
CountryUnited States
CityCleveland
Period14/7/2814/7/30

Bibliographical note

Funding Information:
This work was supported by Defense Acquisition Program Administration and Agency for Development under the contract UD110095CD.

All Science Journal Classification (ASJC) codes

  • Energy Engineering and Power Technology
  • Aerospace Engineering
  • Control and Systems Engineering
  • Electrical and Electronic Engineering
  • Mechanical Engineering

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