Abstract
The steam separator is one of the most critical components in the U-tube steam generator (UTSG), which qualifies moisture carryover less than 0.1% to minimize the damage to turbines. Take both high separation efficiency and low manufacture cost into account, the height of the gravity separation space should be designed appropriately. Air-water separation experiments are carried out to study the effect of several different gravity heights on the separation performance. A droplet mathematical model is proposed and the experimental results are discussed based on it. The analysis indicated that (1) For Stokes flow, weather initial droplet velocity ud0 is bigger or smaller than vapor velocity ug, the analytical solution of the maximum height h for the droplet to reach can be calculated by the same formula. (2) From the numerical solutions of droplet mechanics model, it is found that separation height is related with all three factors (ug,ud0,D) for the small droplet, but is only related with ud for the big droplet. (3) Experimental results show that there exists a minimum gravity separation height to obtain the maximum separation efficiency under the given gas–water conditions. (4) Initial droplet velocity is the key parameter required for the engineering design of separation space height.
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.
