Abstract
Point of net vapor generation (PNVG) was investigated based on the void fraction dataset obtained by using high-frame-rate neutron radiography. The test channels used in the experiment were rectangular channels heated from one side with gap thickness of 3 and 5 mm, channel width of 130 mm, and heated length of 100 mm. This study focused on (1) the instantaneous and time-averaged PNVG, (2) the effects of system parameters on PNVG, (3) the applicability of existing PNVG correlations to the channels with short heated length, and (4) effect of the PNVG in CHF, model. The following results were obtained : (a) the effects of system parameters on the thermal, equilibrium quality at the PNVG are not significant in the present conditions, (b) existing PNVG correlations tend to underestimate the thermal equilibrium quality at the PNVG, and (c) the accuracy of Katto's CHF model could be improved significantly by calculating the PNVG with high accuracy.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callMore From: TRANSACTIONS OF THE JAPAN SOCIETY OF MECHANICAL ENGINEERS Series B
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
