Injecting parameters design and performance test of the pre-igniter for continuous wave DF/HF chemical lasers

Bing Huang; Shengfu Yuan; Lijia Yang; Xiaoting Fang

doi:10.1117/12.2066613

18 November 2014 Injecting parameters design and performance test of the pre-igniter for continuous wave DF/HF chemical lasers

Bing Huang, Shengfu Yuan, Lijia Yang, Xiaoting Fang

Author Affiliations +

Proceedings Volume 9266, High-Power Lasers and Applications VII; 92660Y (2014) https://doi.org/10.1117/12.2066613
Event: SPIE/COS Photonics Asia, 2014, Beijing, China

Abstract

Combustion-driven continuous wave (CW) DF/HF chemical lasers cannot be inflamed successfully sometimes because the spark-plug-igniter is intolerant of ablation especially after long-time operation which deeply affected the reliability of the lasers. In this paper, a pre-igniter is designed as a new igniter system to produce F₂ to solve the problem. Based on the engineering practices and the principle that high-intensity spontaneous combustion will happen when mixing F₂ and H₂. The results of NF₃ and H₂ reacting with different mole ratios were calculated by CEA software. The operation reliability of the pre-igniter, the mole concentration of F₂ in the mixing gas, and the equilibrium temperature were validated by a series of experiments. The experimental results were consistent with the calculated data: with the mole ratio of NF₃ to H₂ increasing, the equilibrium temperature decreased gradually and finally leveled off; the mole concentration of F₂ in the mixing gas first increased and then decreased, achieving the maximum of about 40% when the mole ratio of NF₃ to H₂ was about 3.2. Experimental results outlined that the pre-igniter performed reliability and could produce high output of F₂. The ignition system with a pre-igniter and a spark plug could provide a new alternative for combustion-driven CW DF/HF chemical lasers.

Citation Download Citation

Bing Huang, Shengfu Yuan, Lijia Yang, and Xiaoting Fang "Injecting parameters design and performance test of the pre-igniter for continuous wave DF/HF chemical lasers", Proc. SPIE 9266, High-Power Lasers and Applications VII, 92660Y (18 November 2014); https://doi.org/10.1117/12.2066613

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

Members: $17.00

Non-members: $21.00 ADD TO CART

PROCEEDINGS
8 PAGES

DOWNLOAD PAPER SAVE TO MY LIBRARY

GET CITATION

RIGHTS & PERMISSIONS

Get copyright permission Get copyright permission on Copyright Marketplace

KEYWORDS

Fluorine

Chemical lasers

Combustion

Continuous wave operation

Reliability

Calibration

Throat

Show All Keywords

Keywords/Phrases

Search In:

Publication Years