Oxidation Behavior of Pure Iron under Hydrogen Combustion Environment

The environmental resistance of pure iron was evaluated by an oxygen and hydrogen sensor installed after an oxidation furnace. The amount of introduced oxygen was precisely controlled by the oxygen pump sensor at the front stage of the oxidation furnace, and the reaction with hydrogen was analyzed....

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Main Authors: Michihisa Fukumoto, Seiya Hara, Hiroki Takahashi
Format: Article
Language:English
Published: MDPI AG 2023-07-01
Series:Metals
Subjects:
Online Access:https://www.mdpi.com/2075-4701/13/7/1246
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author Michihisa Fukumoto
Seiya Hara
Hiroki Takahashi
author_facet Michihisa Fukumoto
Seiya Hara
Hiroki Takahashi
author_sort Michihisa Fukumoto
collection DOAJ
description The environmental resistance of pure iron was evaluated by an oxygen and hydrogen sensor installed after an oxidation furnace. The amount of introduced oxygen was precisely controlled by the oxygen pump sensor at the front stage of the oxidation furnace, and the reaction with hydrogen was analyzed. Thus, when oxygen was supplied, a reaction between hydrogen and oxygen occurred; however, when the supplied oxygen was not sufficient, a hydrogen-vapor environment was created, and oxidation was not accelerated. Conversely, when the amount of supplied oxygen was excessive, the environment became an oxygen–steam environment, and oxidation was accelerated. Therefore, this explained how the oxidation caused by oxygen was dominant under the oxygen–water vapor environment, and the oxidation weight gain increased. In addition, the border of the region dominated by oxygen oxidation and steam oxygen was clarified by precisely controlling the amount of oxygen supplied by the oxygen pump sensor.
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spelling doaj.art-c3b17da406a64d47ad3524b617e5179e2023-11-18T20:29:59ZengMDPI AGMetals2075-47012023-07-01137124610.3390/met13071246Oxidation Behavior of Pure Iron under Hydrogen Combustion EnvironmentMichihisa Fukumoto0Seiya Hara1Hiroki Takahashi2Graduate School of Engineering Science, Akita University, Akita 010-8502, JapanGraduate School of Engineering Science, Akita University, Akita 010-8502, JapanGraduate School of Engineering Science, Akita University, Akita 010-8502, JapanThe environmental resistance of pure iron was evaluated by an oxygen and hydrogen sensor installed after an oxidation furnace. The amount of introduced oxygen was precisely controlled by the oxygen pump sensor at the front stage of the oxidation furnace, and the reaction with hydrogen was analyzed. Thus, when oxygen was supplied, a reaction between hydrogen and oxygen occurred; however, when the supplied oxygen was not sufficient, a hydrogen-vapor environment was created, and oxidation was not accelerated. Conversely, when the amount of supplied oxygen was excessive, the environment became an oxygen–steam environment, and oxidation was accelerated. Therefore, this explained how the oxidation caused by oxygen was dominant under the oxygen–water vapor environment, and the oxidation weight gain increased. In addition, the border of the region dominated by oxygen oxidation and steam oxygen was clarified by precisely controlling the amount of oxygen supplied by the oxygen pump sensor.https://www.mdpi.com/2075-4701/13/7/1246hydrogen sensoroxygen sensoroxygen pump sensorhydrogen combustiongas turbine
spellingShingle Michihisa Fukumoto
Seiya Hara
Hiroki Takahashi
Oxidation Behavior of Pure Iron under Hydrogen Combustion Environment
Metals
hydrogen sensor
oxygen sensor
oxygen pump sensor
hydrogen combustion
gas turbine
title Oxidation Behavior of Pure Iron under Hydrogen Combustion Environment
title_full Oxidation Behavior of Pure Iron under Hydrogen Combustion Environment
title_fullStr Oxidation Behavior of Pure Iron under Hydrogen Combustion Environment
title_full_unstemmed Oxidation Behavior of Pure Iron under Hydrogen Combustion Environment
title_short Oxidation Behavior of Pure Iron under Hydrogen Combustion Environment
title_sort oxidation behavior of pure iron under hydrogen combustion environment
topic hydrogen sensor
oxygen sensor
oxygen pump sensor
hydrogen combustion
gas turbine
url https://www.mdpi.com/2075-4701/13/7/1246
work_keys_str_mv AT michihisafukumoto oxidationbehaviorofpureironunderhydrogencombustionenvironment
AT seiyahara oxidationbehaviorofpureironunderhydrogencombustionenvironment
AT hirokitakahashi oxidationbehaviorofpureironunderhydrogencombustionenvironment