Investigation of a new approach for regulating the reactivity and achieving economic feasibility using thorium in a blanket‐seed assembly of pressurized water reactors
Summary The traditional methods for controlling reactor excess reactivity are expensive and have defects during reactor operation. By altering the fuel structure and fissile material distribution, this work presents a new technique for managing excess reactivity at the start of the fuel life. MCNPX...
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| Veröffentlicht in: | International journal of energy research 2022-04, Vol.46 (5), p.6112-6125 |
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| container_title | International journal of energy research |
| container_volume | 46 |
| creator | Elazaka, Ahmed Ismail Tikhomirov, Georgy Valentinovich Savander, Vladimir Igorevich Abdel‐Rahman, Mohamed A.E. Galahom, A. Abdelghafar |
| description | Summary
The traditional methods for controlling reactor excess reactivity are expensive and have defects during reactor operation. By altering the fuel structure and fissile material distribution, this work presents a new technique for managing excess reactivity at the start of the fuel life. MCNPX code edition 2.7 was used to investigate the neutronic characteristics of the suggested blanket‐seed assembly models and compare them with the reference PWR fuel assembly. Instead of U‐238, Th‐232 was suggested as a fertile nuclide. The impact of the proposed models on the infinite multiplication factor, fuel component concentrations, reactor‐grade plutonium, minor actinides, radial flux of thermal neutrons, and the radial distribution of power has been analyzed. The safety parameters, including the control rods worth, Doppler effect, moderator temperature reactivity coefficients, and the effective delayed neutron fraction, have been studied to reach the most optimum fuel structure. |
| doi_str_mv | 10.1002/er.7551 |
| format | Article |
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The traditional methods for controlling reactor excess reactivity are expensive and have defects during reactor operation. By altering the fuel structure and fissile material distribution, this work presents a new technique for managing excess reactivity at the start of the fuel life. MCNPX code edition 2.7 was used to investigate the neutronic characteristics of the suggested blanket‐seed assembly models and compare them with the reference PWR fuel assembly. Instead of U‐238, Th‐232 was suggested as a fertile nuclide. The impact of the proposed models on the infinite multiplication factor, fuel component concentrations, reactor‐grade plutonium, minor actinides, radial flux of thermal neutrons, and the radial distribution of power has been analyzed. The safety parameters, including the control rods worth, Doppler effect, moderator temperature reactivity coefficients, and the effective delayed neutron fraction, have been studied to reach the most optimum fuel structure.</description><identifier>ISSN: 0363-907X</identifier><identifier>EISSN: 1099-114X</identifier><identifier>DOI: 10.1002/er.7551</identifier><language>eng</language><publisher>Chichester, UK: John Wiley & Sons, Inc</publisher><subject>Actinides ; Assembly ; blanket‐seed ; Coefficients ; Control methods ; Control rods ; Defects ; Distribution ; Doppler effect ; Doppler sonar ; Economic feasibility ; Electric power distribution ; Feasibility studies ; Fertility ; Fissionable materials ; Fuels ; Multiplication ; Neutrons ; Nuclear fuels ; Nuclear safety ; Plutonium ; power distribution ; Pressurized water reactors ; Radial distribution ; Reactivity ; reactivity regulator ; Reactors ; safety parameters ; Thermal neutrons ; Thorium</subject><ispartof>International journal of energy research, 2022-04, Vol.46 (5), p.6112-6125</ispartof><rights>2021 John Wiley & Sons Ltd.</rights><rights>2022 John Wiley & Sons, Ltd.</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c3221-579958f175ed981e4b667854eea0658cecf67cd22a20c4291edffab89bc495e83</citedby><cites>FETCH-LOGICAL-c3221-579958f175ed981e4b667854eea0658cecf67cd22a20c4291edffab89bc495e83</cites><orcidid>0000-0002-1280-9363 ; 0000-0001-9918-3182</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://onlinelibrary.wiley.com/doi/pdf/10.1002%2Fer.7551$$EPDF$$P50$$Gwiley$$H</linktopdf><linktohtml>$$Uhttps://onlinelibrary.wiley.com/doi/full/10.1002%2Fer.7551$$EHTML$$P50$$Gwiley$$H</linktohtml><link.rule.ids>314,778,782,1414,27911,27912,45561,45562</link.rule.ids></links><search><creatorcontrib>Elazaka, Ahmed Ismail</creatorcontrib><creatorcontrib>Tikhomirov, Georgy Valentinovich</creatorcontrib><creatorcontrib>Savander, Vladimir Igorevich</creatorcontrib><creatorcontrib>Abdel‐Rahman, Mohamed A.E.</creatorcontrib><creatorcontrib>Galahom, A. Abdelghafar</creatorcontrib><title>Investigation of a new approach for regulating the reactivity and achieving economic feasibility using thorium in a blanket‐seed assembly of pressurized water reactors</title><title>International journal of energy research</title><description>Summary
The traditional methods for controlling reactor excess reactivity are expensive and have defects during reactor operation. By altering the fuel structure and fissile material distribution, this work presents a new technique for managing excess reactivity at the start of the fuel life. MCNPX code edition 2.7 was used to investigate the neutronic characteristics of the suggested blanket‐seed assembly models and compare them with the reference PWR fuel assembly. Instead of U‐238, Th‐232 was suggested as a fertile nuclide. The impact of the proposed models on the infinite multiplication factor, fuel component concentrations, reactor‐grade plutonium, minor actinides, radial flux of thermal neutrons, and the radial distribution of power has been analyzed. The safety parameters, including the control rods worth, Doppler effect, moderator temperature reactivity coefficients, and the effective delayed neutron fraction, have been studied to reach the most optimum fuel structure.</description><subject>Actinides</subject><subject>Assembly</subject><subject>blanket‐seed</subject><subject>Coefficients</subject><subject>Control methods</subject><subject>Control rods</subject><subject>Defects</subject><subject>Distribution</subject><subject>Doppler effect</subject><subject>Doppler sonar</subject><subject>Economic feasibility</subject><subject>Electric power distribution</subject><subject>Feasibility studies</subject><subject>Fertility</subject><subject>Fissionable materials</subject><subject>Fuels</subject><subject>Multiplication</subject><subject>Neutrons</subject><subject>Nuclear fuels</subject><subject>Nuclear safety</subject><subject>Plutonium</subject><subject>power distribution</subject><subject>Pressurized water reactors</subject><subject>Radial distribution</subject><subject>Reactivity</subject><subject>reactivity regulator</subject><subject>Reactors</subject><subject>safety parameters</subject><subject>Thermal neutrons</subject><subject>Thorium</subject><issn>0363-907X</issn><issn>1099-114X</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2022</creationdate><recordtype>article</recordtype><recordid>eNp10c1KAzEQB_AgCtYqvkLAgwfZmqT7laMUPwoFQRR6W7LppE3dJjXZbVlPPoKv4Wv5JGZdr55CMr_MH2YQOqdkRAlh1-BGWZLQAzSghPOI0nh-iAZknI4jTrL5MTrxfk1IqNFsgL6mZge-1ktRa2uwVVhgA3sstltnhVxhZR12sGyqAMwS1ysIVyFrvdN1i4VZ4KA07LoiSGvsRkusQHhd6qojje__WaebDdYmBJSVMK9Qf398eoDQwHvYlFXbpW8deN84_R7e96IG16dZ50_RkRKVh7O_c4he7m6fJw_R7PF-OrmZRXLMGI2SjPMkVzRLYMFzCnGZplmexACCpEkuQao0kwvGBCMyZpzCQilR5ryUMU8gHw_RRd83DOCtCbMp1rZxJkQWLI0JZxllNKjLXklnvXegiq3TG-HagpKi20MBruj2EORVL_e6gvY_Vtw-_eofns6OAA</recordid><startdate>202204</startdate><enddate>202204</enddate><creator>Elazaka, Ahmed Ismail</creator><creator>Tikhomirov, Georgy Valentinovich</creator><creator>Savander, Vladimir Igorevich</creator><creator>Abdel‐Rahman, Mohamed A.E.</creator><creator>Galahom, A. 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The traditional methods for controlling reactor excess reactivity are expensive and have defects during reactor operation. By altering the fuel structure and fissile material distribution, this work presents a new technique for managing excess reactivity at the start of the fuel life. MCNPX code edition 2.7 was used to investigate the neutronic characteristics of the suggested blanket‐seed assembly models and compare them with the reference PWR fuel assembly. Instead of U‐238, Th‐232 was suggested as a fertile nuclide. The impact of the proposed models on the infinite multiplication factor, fuel component concentrations, reactor‐grade plutonium, minor actinides, radial flux of thermal neutrons, and the radial distribution of power has been analyzed. The safety parameters, including the control rods worth, Doppler effect, moderator temperature reactivity coefficients, and the effective delayed neutron fraction, have been studied to reach the most optimum fuel structure.</abstract><cop>Chichester, UK</cop><pub>John Wiley & Sons, Inc</pub><doi>10.1002/er.7551</doi><tpages>14</tpages><orcidid>https://orcid.org/0000-0002-1280-9363</orcidid><orcidid>https://orcid.org/0000-0001-9918-3182</orcidid><oa>free_for_read</oa></addata></record> |
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| ispartof | International journal of energy research, 2022-04, Vol.46 (5), p.6112-6125 |
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| language | eng |
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| source | Wiley Online Library Journals Frontfile Complete |
| subjects | Actinides Assembly blanket‐seed Coefficients Control methods Control rods Defects Distribution Doppler effect Doppler sonar Economic feasibility Electric power distribution Feasibility studies Fertility Fissionable materials Fuels Multiplication Neutrons Nuclear fuels Nuclear safety Plutonium power distribution Pressurized water reactors Radial distribution Reactivity reactivity regulator Reactors safety parameters Thermal neutrons Thorium |
| title | Investigation of a new approach for regulating the reactivity and achieving economic feasibility using thorium in a blanket‐seed assembly of pressurized water reactors |
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