Dryout predictions for liquid boiling in a thin hemispherical porous layer

• Autorzy: Evdokimov I. A. , Khoruzhii O. V. , Likhanskii V. V.
• Konferencja: International Conference on Heat Transfer and Transport Phenomena in Multiphase Systems HEAT '99 (2; 18-22.05.1999; Kielce, Poland)
• Języki publikacji: EN

Abstrakty

EN

During TMI-2 accident a gap was formed between reactor vessel bottom and core debris bed. This gap is thought to provide high cooling rates. In the present paper additional heat removal mechanism due to gap is modeled as boiling of coolant in a thin hemispherical heated porous layer. Corresponding dryout power is found as a function of debris bed permeability and material properties of liquid and its vapor. Conditions are assessed at which heat removal by boiling in the gap is noticeable and should be taken into account in analysis of debris cooling inside reactor vessel.

Słowa kluczowe

EN

debris bed coolability; coolant boiling; dryout; porous gap; reactor vessel

• Wydawca: Wydawnictwo Politechniki Świętokrzyskiej
• Czasopismo: Zeszyty Naukowe Politechniki Świętokrzyskiej. Mechanika
• Rocznik: 1999
• Tom: Z. 67
• Strony: 205--214
• Opis fizyczny: Bibliogr. 7 poz., rys., wykr., wzory

Twórcy

autor

Evdokimov I. A.

• State Research Center of Russian Federation, Troitsk Institute of Innovation and Fusion Research (TRINITI), Nuclear Safety Department, 142092 Troitsk, Moscow reg., Russia

autor

Khoruzhii O. V.

• State Research Center of Russian Federation, Troitsk Institute of Innovation and Fusion Research (TRINITI), Nuclear Safety Department, 142092 Troitsk, Moscow reg., Russia

autor

Likhanskii V. V.

• State Research Center of Russian Federation, Troitsk Institute of Innovation and Fusion Research (TRINITI), Nuclear Safety Department, 142092 Troitsk, Moscow reg., Russia

Uwagi

EN

The work hes been performed with partial support of International Atom Energy Agency, grant No. 9576/R1.