Pulsating flows in the inlet of a nuclear steam turbine

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F49777513%3A23640%2F03%3A00000060" target="_blank" >RIV/49777513:23640/03:00000060 - isvavai.cz</a>
Result on the web
—
DOI - Digital Object Identifier
—

Result language
angličtina
Original language name
Pulsating flows in the inlet of a nuclear steam turbine
Original language description
High-frequency pulsation of the steam flow and vibration of piping system was discovered during test period of 1000 MW ŠKODA turbine operating with inlet-saturated steam in nuclear power plant Temelín. Control valves and piping system radiated high-power noise. The only possible way of pulsating flows reduction was to change the geometry of inner channels of control valves. Several variants of valve channel geometry were tested. Main attention was given to the variant with flat-bottom-plug and perfor ated ring called “muffler”. The new designs are compared in the paper with the original one by field turbine measurements, by numerical simulations and by model experiments. Mach number and velocity distribution in valve channels and diffuse rand also pressure pulsation characteristics of steam flow in inlet pipes are described for the wide range of turbine-output.
Czech name
—
Czech description
—

Project
<a href="/en/project/LN00B084" target="_blank" >LN00B084: Research Centre for New Technologies in the Region of West Bohemia</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2003
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Similar results(10)