Spectral radiation characteristics of high temperature gas in low altitude environment

Zhenhua Wang; Xingdong Bao; Hongxia Mao; Dong Liu

doi:10.1117/12.2586328

12 March 2021 Spectral radiation characteristics of high temperature gas in low altitude environment

Zhenhua Wang, Xingdong Bao, Hongxia Mao, Dong Liu

Proceedings Volume 11763, Seventh Symposium on Novel Photoelectronic Detection Technology and Applications; 1176327 (2021) https://doi.org/10.1117/12.2586328
Event: Seventh Symposium on Novel Photoelectronic Detection Technology and Application 2020, 2020, Kunming, China

Abstract

In order to study the variation law of radiation characteristics of high temperature gas with altitude in medium and low altitude environment, the spectral radiation characteristics of three mixed gases containing H2O, CO2 and CO at different temperatures and pressures were calculated by LBL (Line by line) method, so as to analyze the corresponding changes of spectral radiation intensity of high temperature gas with the change of overall temperature and pressure, and explain the reason why the radiation spectrum changes with altitude. The results showed that the influence of temperature on the radiation intensity was more significant than that of pressure; at the same time, with the decrease of temperature, the peak value of spectral radiation gradually moved to the middle wave band, and the radiation intensity at 4.3 μm, which is the radiation band of CO2, and 4.7 μm, which is the radiation band of CO, gradually increased. However, due to the greater sensitivity of CO to the change of pressure, the relative radiation intensity at 4.7 μm after the pressure was reduced.

Citation Download Citation

Zhenhua Wang, Xingdong Bao, Hongxia Mao, and Dong Liu "Spectral radiation characteristics of high temperature gas in low altitude environment", Proc. SPIE 11763, Seventh Symposium on Novel Photoelectronic Detection Technology and Applications, 1176327 (12 March 2021); https://doi.org/10.1117/12.2586328

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