On the results of nuclear fuel temperature dynamics restoration at the Chornobyl NPP unit 4 during active phase of the accident
Fuel temperature dynamics was reconstructed for active phase of the accident at the Chernobyl NPP Unit 4. Method of effective temperature calculation for uranium oxide is based on implementation of the CORSOR type mathematical codes and the model of lava-like fuel containing materials (LFCM) formati...
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| Format: | Article |
| Language: | English |
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Institute for Nuclear Research, National Academy of Sciences of Ukraine
2016-02-01
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| Series: | Ядерна фізика та енергетика |
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| Online Access: | http://jnpae.kinr.kiev.ua/16.4/html/16.4.0352.html |
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| author | O. V. Mikhailov A. O. Doroshenko |
| author_facet | O. V. Mikhailov A. O. Doroshenko |
| author_sort | O. V. Mikhailov |
| collection | DOAJ |
| description | Fuel temperature dynamics was reconstructed for active phase of the accident at the Chernobyl NPP Unit 4. Method of effective temperature calculation for uranium oxide is based on implementation of the CORSOR type mathematical codes and the model of lava-like fuel containing materials (LFCM) formation from fragments of the former core (FFC) in the room 305/2. Calculations were carried out according to release rate of 131I and 137Cs radionuclides during the period from April 26 until May 6, 1986. The rate of temperature drop during the FCM stage cooling bath silicate melt was estimated. It is shown that the main streams of LFCM could be formed at more moderate values of temperatures than it was performed previously. The results of the work are used to verify the “blast furnace” version of LFCM formation and formation of FCM with high uranium concentration. |
| format | Article |
| id | doaj-art-9d24d1febdbc4af3bcdfccbb4f335f11 |
| institution | Kabale University |
| issn | 1818-331X 2074-0565 |
| language | English |
| publishDate | 2016-02-01 |
| publisher | Institute for Nuclear Research, National Academy of Sciences of Ukraine |
| record_format | Article |
| series | Ядерна фізика та енергетика |
| spelling | doaj-art-9d24d1febdbc4af3bcdfccbb4f335f112025-08-20T03:38:15ZengInstitute for Nuclear Research, National Academy of Sciences of UkraineЯдерна фізика та енергетика1818-331X2074-05652016-02-01164352361On the results of nuclear fuel temperature dynamics restoration at the Chornobyl NPP unit 4 during active phase of the accidentO. V. Mikhailov0A. O. Doroshenko 1Institute for NPP Safety Problems, National Academy of Sciences of Ukraine, Chornobyl, Ukraine Institute for NPP Safety Problems, National Academy of Sciences of Ukraine, Chornobyl, Ukraine Fuel temperature dynamics was reconstructed for active phase of the accident at the Chernobyl NPP Unit 4. Method of effective temperature calculation for uranium oxide is based on implementation of the CORSOR type mathematical codes and the model of lava-like fuel containing materials (LFCM) formation from fragments of the former core (FFC) in the room 305/2. Calculations were carried out according to release rate of 131I and 137Cs radionuclides during the period from April 26 until May 6, 1986. The rate of temperature drop during the FCM stage cooling bath silicate melt was estimated. It is shown that the main streams of LFCM could be formed at more moderate values of temperatures than it was performed previously. The results of the work are used to verify the “blast furnace” version of LFCM formation and formation of FCM with high uranium concentration.http://jnpae.kinr.kiev.ua/16.4/html/16.4.0352.htmluraniumfuel-containing materials131I and 137Cs radionuclidesrelease rate of volatile fission productspower of accidental releaseeffective temperature |
| spellingShingle | O. V. Mikhailov A. O. Doroshenko On the results of nuclear fuel temperature dynamics restoration at the Chornobyl NPP unit 4 during active phase of the accident Ядерна фізика та енергетика uranium fuel-containing materials 131I and 137Cs radionuclides release rate of volatile fission products power of accidental release effective temperature |
| title | On the results of nuclear fuel temperature dynamics restoration at the Chornobyl NPP unit 4 during active phase of the accident |
| title_full | On the results of nuclear fuel temperature dynamics restoration at the Chornobyl NPP unit 4 during active phase of the accident |
| title_fullStr | On the results of nuclear fuel temperature dynamics restoration at the Chornobyl NPP unit 4 during active phase of the accident |
| title_full_unstemmed | On the results of nuclear fuel temperature dynamics restoration at the Chornobyl NPP unit 4 during active phase of the accident |
| title_short | On the results of nuclear fuel temperature dynamics restoration at the Chornobyl NPP unit 4 during active phase of the accident |
| title_sort | on the results of nuclear fuel temperature dynamics restoration at the chornobyl npp unit 4 during active phase of the accident |
| topic | uranium fuel-containing materials 131I and 137Cs radionuclides release rate of volatile fission products power of accidental release effective temperature |
| url | http://jnpae.kinr.kiev.ua/16.4/html/16.4.0352.html |
| work_keys_str_mv | AT ovmikhailov ontheresultsofnuclearfueltemperaturedynamicsrestorationatthechornobylnppunit4duringactivephaseoftheaccident AT aodoroshenko ontheresultsofnuclearfueltemperaturedynamicsrestorationatthechornobylnppunit4duringactivephaseoftheaccident |