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An Al - water fed DC arcjet

In this study, development of Al-water fed arcjet was conducted, in which water and aluminum were fed to the thruster as the propellant. The combustion of aluminum with water as an oxidizer can release a very high energy density with unit mass compared with fossil fuels. From the chemical equilibriu...

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Main Authors:	Yanagida, Naoto, Ohata, Makoto, Horisawa, Hideyuki, Kobayashi, Akira
Format:	Conference or Workshop Item
Published:	2015
Subjects:	T Technology (General)
Online Access:	http://eprints.utm.my/id/eprint/62068/ http://rnavi.ndl.go.jp/books/2016/09/026741463.php
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id	my.utm.62068
record_format	eprints
spelling	my.utm.620682017-08-02T03:30:06Z http://eprints.utm.my/id/eprint/62068/ An Al - water fed DC arcjet Yanagida, Naoto Ohata, Makoto Horisawa, Hideyuki Kobayashi, Akira T Technology (General) In this study, development of Al-water fed arcjet was conducted, in which water and aluminum were fed to the thruster as the propellant. The combustion of aluminum with water as an oxidizer can release a very high energy density with unit mass compared with fossil fuels. From the chemical equilibrium simulation, it was shown that thrust performance of the Al-water fed arcjet was as well as that of hydrazine arcjets at low specific power range. In addition, to observe behaviors of vaporized aluminum propellant fed as a solid state rod to the arcjet and then vaporized in the discharge plenum, a novel coaxial double cathode was developed and tested. It was shown that streams of vaporized aluminum were injected through the injection holes at a tip of the coaxial double cathode. From the spectroscopic measurement of the plasma in the plenum, spectra of atomic and ionic aluminum were observed at 200 nm to 400 nm. In addition, larger heat generation, probably due to exothermic chemical reactions of species, was confirmed with mixed propellant of Al and water. Since the heat exhausted from the nozzle was no longer measured after termination of discharges, this chemical reaction could be controlled only with discharges. 2015 Conference or Workshop Item PeerReviewed Yanagida, Naoto and Ohata, Makoto and Horisawa, Hideyuki and Kobayashi, Akira (2015) An Al - water fed DC arcjet. In: Advances in Applied Plasma Science, 31 Aug-4 Sept, 2015, Japan. http://rnavi.ndl.go.jp/books/2016/09/026741463.php
institution	Universiti Teknologi Malaysia
building	UTM Library
collection	Institutional Repository
continent	Asia
country	Malaysia
content_provider	Universiti Teknologi Malaysia
content_source	UTM Institutional Repository
url_provider	http://eprints.utm.my/
topic	T Technology (General)
spellingShingle	T Technology (General) Yanagida, Naoto Ohata, Makoto Horisawa, Hideyuki Kobayashi, Akira An Al - water fed DC arcjet
description	In this study, development of Al-water fed arcjet was conducted, in which water and aluminum were fed to the thruster as the propellant. The combustion of aluminum with water as an oxidizer can release a very high energy density with unit mass compared with fossil fuels. From the chemical equilibrium simulation, it was shown that thrust performance of the Al-water fed arcjet was as well as that of hydrazine arcjets at low specific power range. In addition, to observe behaviors of vaporized aluminum propellant fed as a solid state rod to the arcjet and then vaporized in the discharge plenum, a novel coaxial double cathode was developed and tested. It was shown that streams of vaporized aluminum were injected through the injection holes at a tip of the coaxial double cathode. From the spectroscopic measurement of the plasma in the plenum, spectra of atomic and ionic aluminum were observed at 200 nm to 400 nm. In addition, larger heat generation, probably due to exothermic chemical reactions of species, was confirmed with mixed propellant of Al and water. Since the heat exhausted from the nozzle was no longer measured after termination of discharges, this chemical reaction could be controlled only with discharges.
format	Conference or Workshop Item
author	Yanagida, Naoto Ohata, Makoto Horisawa, Hideyuki Kobayashi, Akira
author_facet	Yanagida, Naoto Ohata, Makoto Horisawa, Hideyuki Kobayashi, Akira
author_sort	Yanagida, Naoto
title	An Al - water fed DC arcjet
title_short	An Al - water fed DC arcjet
title_full	An Al - water fed DC arcjet
title_fullStr	An Al - water fed DC arcjet
title_full_unstemmed	An Al - water fed DC arcjet
title_sort	al - water fed dc arcjet
publishDate	2015
url	http://eprints.utm.my/id/eprint/62068/ http://rnavi.ndl.go.jp/books/2016/09/026741463.php
_version_	1643655313152278528
score	13.211869

An Al - water fed DC arcjet

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