TY - GEN
T1 - Alumina reduction by laser ablation using a continuous-wave CO2 laser toward aluminum energy cycle
AU - Tanaka, Seiya
AU - Yamada, Shin
AU - Komurasaki, Kimiya
AU - Matsui, Makoto
AU - Kawashima, Rei
AU - Koizumi, Hiroyuki
N1 - Funding Information:
This work was supported by Japan EXpert Clone Corporation and JSPS KAKENHI Grant Number 17K18935.
Publisher Copyright:
© 2018, American Institute of Aeronautics and Astronautics Inc, AIAA. All rights reserved.
PY - 2018
Y1 - 2018
N2 - Aiming at development of a new method of alumina reduction that can be applied to aluminum energy cycle, experiments of alumina reduction using CW laser ablation were conducted with a kW-class CW CO2 laser. Emission spectra from the ablation plume were measured; Al I line spectra were detected. Results show that alumina reduction succeeded without reducing stores. The temperature varied with ambient pressure and laser intensity: 3,100–3,850 K. The maximum molar reduction percentage and energy conversion efficiency was 13% and 0.73%. To apply alumina reduction by laser ablation Further improvement of these will be achieved by increasing laser intensity.
AB - Aiming at development of a new method of alumina reduction that can be applied to aluminum energy cycle, experiments of alumina reduction using CW laser ablation were conducted with a kW-class CW CO2 laser. Emission spectra from the ablation plume were measured; Al I line spectra were detected. Results show that alumina reduction succeeded without reducing stores. The temperature varied with ambient pressure and laser intensity: 3,100–3,850 K. The maximum molar reduction percentage and energy conversion efficiency was 13% and 0.73%. To apply alumina reduction by laser ablation Further improvement of these will be achieved by increasing laser intensity.
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U2 - 10.2514/6.2018-4413
DO - 10.2514/6.2018-4413
M3 - Conference contribution
AN - SCOPUS:85083937130
SN - 9781624105715
T3 - 2018 International Energy Conversion Engineering Conference
BT - 2018 International Energy Conversion Engineering Conference
PB - American Institute of Aeronautics and Astronautics Inc, AIAA
T2 - 14th International Energy Conversion Engineering Conference, IECEC 2018
Y2 - 9 July 2018 through 11 July 2018
ER -