Laser monitor application for study of aluminum nanopowder ignition and combustion

Fedor A. Gubarev; Iuliia D. Liushnevskaya; Lin Li; Andrei V. Mostovshchikov; Alexander P. Ilyin

doi:10.1117/12.2588461

4 May 2021 Laser monitor application for study of aluminum nanopowder ignition and combustion

Fedor A. Gubarev, Iuliia D. Liushnevskaya, Lin Li, Andrei V. Mostovshchikov, Alexander P. Ilyin

Proceedings Volume 11846, Saratov Fall Meeting 2020: Laser Physics, Photonic Technologies, and Molecular Modeling; 1184604 (2021) https://doi.org/10.1117/12.2588461
Event: Saratov Fall Meeting 2020, 2020, Saratov, Russian Federation

Abstract

The paper presents the results of application of optical system with brightness amplification, a laser monitor, to study the surface of aluminum nanopowder at the time of laser ignition and during combustion. Using a laser monitor, we visualized the presence of a liquid phase in the process of laser ignition of aluminum nanopowder combustion for the first time. For quantitative analysis of the combustion process, we propose using the correlation coefficient of the images of laser monitor. The results of calculating the correlation coefficient demonstrated compliance with the change in the intensity of the images of the laser monitor during combustion and visual observation of the combustion process. For the conventional scheme of a laser monitor with a focal length of 8 cm, the distortions introduced by the instability of the brightness amplifier into the measurement results are estimated. When observing a static test object, the correlation coefficient of the images varied from 0.995 to 0.996, while the fluctuation in the correlation coefficient during combustion is in the range from 0.685 to 0.996, which indicates the possibility of this parameter usage for quantitative analysis of combustion processes in the study using a laser monitor.

Citation Download Citation

Fedor A. Gubarev, Iuliia D. Liushnevskaya, Lin Li, Andrei V. Mostovshchikov, and Alexander P. Ilyin "Laser monitor application for study of aluminum nanopowder ignition and combustion", Proc. SPIE 11846, Saratov Fall Meeting 2020: Laser Physics, Photonic Technologies, and Molecular Modeling, 1184604 (4 May 2021); https://doi.org/10.1117/12.2588461

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available