Abstract
Improvement of the Turbine Main Stop Valves with Flow Simulation in Erosion by Solid Particle Impact CFD
Highlights
Solid particle erosion (SPE) of steam turbine components, such as nozzles, blades, radial spill-strips, and control valves, has been a problem of concern to utilities for several years as reported by Mazur et al (1995) and Stastny et al (1990)
Because the entire flow to the turbine during start ups is carried by the main stop valve bypass valve (MSVBV) it is subject to serious solid particle erosion problems and requires frequent replacement to avoid the catastrophic damage which can occurred when the MSVBV skirt eroded through causing large pieces of metal to be carried directly into the turbine
Increasing the number of starts could increase the damage. In some units it is a normal practice of cycling the units to the extent of 200 starts/units/year which results in excessive solid particle erosion damage
Summary
Solid particle erosion (SPE) of steam turbine components, such as nozzles, blades, radial spill-strips, and control valves, has been a problem of concern to utilities for several years as reported by Mazur et al (1995) and Stastny et al (1990). CFD is used for flow optimisation purposes and to study or to understand the influence of various geometric parameters as reported by Sierra et al (1997) and Mazur et al (1999). For this analysis CFD has been considered as an effective tool since many configurations can be investigated at a low price
Sign-in/Register to view highlights & summary 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.
