NTF,Dept. of Geot.,Mini. and Enviro.,Dept. of Mat. Sci. and Metal.,Lj. (NTFGRM)
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Erozijske poškodbe zaradi mokre pare na grelniku napajalne vode v NE Krško = Erosion damages due to wet steam on feed water heat exchanger in the Krško nuclear power plantLovrenčič, Peter ; Vojvodič-Tuma, Jelena ; Celin, RomanV Nuklearni elektrarni Krško se napajalna voda segreva v regenerativnih grelnikih. To so prenosniki toplote, v katerih teče napajalna voda skozi cevi, okrog cevi pa para, ki je bila na primernem ... mestu odvzeta iz parne turbine. Ta turbinska para vsebuje približno 5 do 12 % vode v obliki drobnih kapljic. Mokra para udarja na vhodu v regenerativni grelnik s hitrostjo 10 do 20 m/s na posebno ploščo, ki ščiti cevi. Tok pare se nato odbije nazaj na plašč regenerativnega grelnika in kondenzira. V NEK erozijsko delovanje mokre pare skrbno spremljajo in na izbranih mestih periodično merijo debelino plašča grelnika. V zadnjih letih so ultrazvočne meritve pokazale, da se debelina plašča okrog priključka cevovoda grelne pare približuje minimalni dopustni, zato je bil med remontom 2001 del plašča izrezan in zamenjan z novim.Source: [Program in knjiga povzetkov] = [Program and book of abstracts] (Str. 80)Type of material - conference contributionPublish date - 2001Language - slovenian, englishCOBISS.SI-ID - 315999
Author
Lovrenčič, Peter |
Vojvodič-Tuma, Jelena |
Celin, Roman
Topics
FeSiAl zlitina |
razogljičenje |
oksidna plast |
hercinit |
FeSiAl alloy |
decarburization |
oxide layer |
hercynite
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Vojvodič-Tuma, Jelena | 09788 |
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