SharePoint
Aide
IRSN, Institut de radioprotection et de sûreté nucléaire

Search our site :

ok

Contact us :

ok
En Fr

Enhancing Nuclear Safety


Research

Publications

Hydrogen explosion in ITER: Effect of oxygen content on flame propagation of H2/O2/N2 mixtures

​Fusion Engineering and Design / Volume 88, Issues 9-10, October 2013, Pages 2669-2673

Document type > *Article de revue, *Congrès/colloque

Keywords >

Research Unit > IRSN/DSR/SAGR/BPhAG

Authors > SABARD Jérémy, CHAUMEIX Nabiha, BENTAIB Ahmed

Publication Date > 24/09/2012

Summary

​​The present work is a research aimed at acquiring data useful to support the assessment of H2/O2/N2 mixtures risk explosion in ITER. This paper reports laminar flame properties: maximum combustion pressure (PMAX), deflagration index (KG ) and laminar flame speed (SL°) of H2/O2/N2 mixtures over a wide range of initial conditions (XH2=0.1–0.6 ; N2/O2 = 0.66–9 ; Tini = 303–343 K ; Pini = 50–100 kPa). This study was performed in a stainless steel spherical chamber (0.056 m3 volume) equipped with an electric central ignition. A high speed imaging system is used to visualize the outward flame propagation and deduce SL°. The evolution of the pressure inside the vessel during the combustion is monitored. From this temporal evolution of the pressure, PMAX and KG are deduced. Laminar flame speeds were evaluated using 3 different detailed kinetic mechanisms from the literature. The comparison between simulated and experimental values was used to select the most suitable one to calculate the global activation energy of these mixtures. These simulations were performed using COSILAB®.

Send Print

Full text

Involved IRSN laboratory

Physics on ​Severe Accidents Section (BPhAG)

Contact


Close

Send to a friend

The information you provide in this page are single use only and will not be saved.
* Required fields

Recipient's email:*  

Sign with your name:* 

Type your email address:*   

Add a message :

Do you want to receive a copy of this email?

Send

Cancel

Close

WP_IMPRIMER_TITLE

WP_IMPRIMER_MESSAGE

Back

Ok