Cooling of molten core material within a pressurised water reactor vessel lower head: interaction of surface radiation and wall conduction with free convection

Liaqat, A; Baytas, Ahmet

doi:10.1016/s0020-7225(01)00044-1

Cooling of molten core material within a pressurised water reactor vessel lower head: interaction of surface radiation and wall conduction with free convection

Atıf İçin Kopyala

Liaqat A., Baytas A. C.

INTERNATIONAL JOURNAL OF ENGINEERING SCIENCE, cilt.39, sa.18, ss.2089-2102, 2001 (SCI-Expanded)

Yayın Türü: Makale / Tam Makale
Cilt numarası: 39 Sayı: 18
Basım Tarihi: 2001
Doi Numarası: 10.1016/s0020-7225(01)00044-1
Dergi Adı: INTERNATIONAL JOURNAL OF ENGINEERING SCIENCE
Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
Sayfa Sayıları: ss.2089-2102
İstanbul Teknik Üniversitesi Adresli: Hayır

Özet

The phenomenon of cooling of molten core material inside the lower head of a pressurised water reactor pressure vessel has been analysed numerically. A detailed analysis of interaction of surface radiation and conjugate wall conduction with free convection inside the semi-circular cavity has been presented. The effect of parameters which govern the radiative heat transfer from the pool surface has been investigated. The results show that for a certain set of parameters radiative heat transfer from the pool surface is more efficient than convection towards vessel circular wall. For all the cases considered in the present analysis well-stratified corium pool has been obtained. (C) 2001 Elsevier Science Ltd. All rights reserved.