Abstract
Under conditions of forced convective boiling at low pressures and high mass fluxes, beyond a certain quality, choking flow may occur at the exit of a heated channel. An experimental investigation of the influence of this phenomenon on the critical heat flux (CHF) has been carried out. An analysis of the pressure distribution downstream of the heated length as well as the behaviour of the wall temperature during CHF has shown that the occurrence of choking flow, namely outlet pressure fluctuations, does not radically influence the values of the CHF. The physical reasons for the appearance of these outlet pressure fluctuations under conditions of diabatic choking flow have been analyzed. The experimental investigation has also shown that when choking flow occurs the outlet pressure cannot be lowered below a certain value that is fixed by the flow itself. The maximum values of flow parameters attained under choking flow conditions are presented in the Part II of this paper.
Sign-in/Register to access full text options 
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 callDisclaimer: 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.
