Supercritical water use in energetics - corrosion issues

Kód výsledku v IS VaVaI

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Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Supercritical water use in energetics - corrosion issues

Popis výsledku v původním jazyce

Supercritical water (SCW) is water at conditions above the critical point (typically 600°C, 25 MPa). SCW is used as coolant in the primary circuit of one of the new concepts of nuclear reactors. Supercritical water has unique properties and very low price enables its use as chemical environment as well as reactant taking part in chemical reactions. These reactions lead to very interesting products (i.e. nanocrystals). SCW can be use for toxic waste elimination, or as medium for biomass gasification. Oneof the biggest problems associated with SCW usage is its corrosive action, putting therefore high demands on constructional materials. Harsh conditions cause the change in mechanical properties (creep, swelling) as well. Characterization of electrochemical corrosive action of SCW (if any) is problematic due to the rapid decrease of density and dielectric constant. Nevertheless, corrosion clearly takes place in the system, with high corrosion rate. This article deals with corrosion monit

Název v anglickém jazyce

Supercritical water use in energetics - corrosion issues

Popis výsledku anglicky

Supercritical water (SCW) is water at conditions above the critical point (typically 600°C, 25 MPa). SCW is used as coolant in the primary circuit of one of the new concepts of nuclear reactors. Supercritical water has unique properties and very low price enables its use as chemical environment as well as reactant taking part in chemical reactions. These reactions lead to very interesting products (i.e. nanocrystals). SCW can be use for toxic waste elimination, or as medium for biomass gasification. Oneof the biggest problems associated with SCW usage is its corrosive action, putting therefore high demands on constructional materials. Harsh conditions cause the change in mechanical properties (creep, swelling) as well. Characterization of electrochemical corrosive action of SCW (if any) is problematic due to the rapid decrease of density and dielectric constant. Nevertheless, corrosion clearly takes place in the system, with high corrosion rate. This article deals with corrosion monit

Druh

D - Stať ve sborníku

CEP obor

CI - Průmyslová chemie a chemické inženýrství

OECD FORD obor

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Projekt

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Návaznosti

Z - Vyzkumny zamer (s odkazem do CEZ)<br>S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2011

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název statě ve sborníku

Proceedings of The 3rd International Youth Conference on Energetics 2011

ISBN

978-989-95055-6-8

ISSN

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e-ISSN

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Počet stran výsledku

6

Strana od-do

66-41

Název nakladatele

INESC Coimbra

Místo vydání

Leiria

Místo konání akce

Leiria

Datum konání akce

7. 7. 2011

Typ akce podle státní příslušnosti

EUR - Evropská akce

Kód UT WoS článku

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