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Pregled bibliografske jedinice broj: 602467

Radiation heat transfer in a pressurized water reactor lower head filled with molten corium


Šadek, Siniša; Grgić, Davor; Debrecin, Nenad
Radiation heat transfer in a pressurized water reactor lower head filled with molten corium // Nuclear engineering and design, 254 (2013), 154-164 doi:10.1016/j.nucengdes.2012.09.014 (međunarodna recenzija, članak, znanstveni)


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Naslov
Radiation heat transfer in a pressurized water reactor lower head filled with molten corium

Autori
Šadek, Siniša ; Grgić, Davor ; Debrecin, Nenad

Izvornik
Nuclear engineering and design (0029-5493) 254 (2013); 154-164

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
radiation heat transfer; severe accident; corium; RELAP5/SCDAPSIM

Sažetak
Following a core melt, molten material may slump to the lower head of a reactor pressure vessel (RPV). In that case, some structures like lower parts of fuel elements and a core support plate would remain intact. Since the melt is at high temperature and there are no obstacles between the melt and the supporting plate, the plate is exposed to an intense radiation heating. The radiation heat exchange model of the lower head was developed and applied to a finite element code COUPLE which is a part of the detailed mechanistic code RELAP5/SCDAPSIM. The radiation enclosure consisted of three surfaces: the upper surface of the relocated material, the inner surface of the RPV wall above the relocated material and the lower surface of the core support plate. View factors were calculated for the enclosure geometry that is changing in time because of intermittent accumulation of molten material. The enclosure surfaces were covered by mesh of polygonal areas and view factors were calculated, for each pair of the element areas, by solving the definite integrals using the algorithms for adaptive integrations by means of Gaussian quadrature. Algebraic equations for radiosity and irradiation vectors were solved by LU decomposition and the radiation model was explicitly coupled with the heat conduction model. The results show that there is a possibility of the core support plate failure after being heated up due to radiation heat exchange with the melt.

Izvorni jezik
Engleski

Znanstvena područja
Elektrotehnika



POVEZANOST RADA


Projekti:
036-0361590-1589 - Nuklearne elektrane za održivu proizvodnju električne energije (Feretić, Danilo, MZOS ) ( POIROT)

Ustanove:
Fakultet elektrotehnike i računarstva, Zagreb

Profili:

Avatar Url Siniša Šadek (autor)

Avatar Url Davor Grgić (autor)

Avatar Url Nenad Debrecin (autor)

Poveznice na cjeloviti tekst rada:

doi www.sciencedirect.com dx.doi.org

Citiraj ovu publikaciju:

Šadek, Siniša; Grgić, Davor; Debrecin, Nenad
Radiation heat transfer in a pressurized water reactor lower head filled with molten corium // Nuclear engineering and design, 254 (2013), 154-164 doi:10.1016/j.nucengdes.2012.09.014 (međunarodna recenzija, članak, znanstveni)
Šadek, S., Grgić, D. & Debrecin, N. (2013) Radiation heat transfer in a pressurized water reactor lower head filled with molten corium. Nuclear engineering and design, 254, 154-164 doi:10.1016/j.nucengdes.2012.09.014.
@article{article, author = {\v{S}adek, Sini\v{s}a and Grgi\'{c}, Davor and Debrecin, Nenad}, year = {2013}, pages = {154-164}, DOI = {10.1016/j.nucengdes.2012.09.014}, keywords = {radiation heat transfer, severe accident, corium, RELAP5/SCDAPSIM}, journal = {Nuclear engineering and design}, doi = {10.1016/j.nucengdes.2012.09.014}, volume = {254}, issn = {0029-5493}, title = {Radiation heat transfer in a pressurized water reactor lower head filled with molten corium}, keyword = {radiation heat transfer, severe accident, corium, RELAP5/SCDAPSIM} }
@article{article, author = {\v{S}adek, Sini\v{s}a and Grgi\'{c}, Davor and Debrecin, Nenad}, year = {2013}, pages = {154-164}, DOI = {10.1016/j.nucengdes.2012.09.014}, keywords = {radiation heat transfer, severe accident, corium, RELAP5/SCDAPSIM}, journal = {Nuclear engineering and design}, doi = {10.1016/j.nucengdes.2012.09.014}, volume = {254}, issn = {0029-5493}, title = {Radiation heat transfer in a pressurized water reactor lower head filled with molten corium}, keyword = {radiation heat transfer, severe accident, corium, RELAP5/SCDAPSIM} }

Časopis indeksira:


  • Current Contents Connect (CCC)
  • Web of Science Core Collection (WoSCC)
    • Science Citation Index Expanded (SCI-EXP)
    • SCI-EXP, SSCI i/ili A&HCI
  • Scopus


Uključenost u ostale bibliografske baze podataka::


  • INSPEC
  • Scopus


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