Evaluation of Loss-of-Coolant Accident Simulation Tests with the Fuel Rod Analysis Code FRAPTRAN-1.4

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Evaluation of Loss-of-Coolant Accident Simulation Tests with the Fuel Rod Analysis Code FRAPTRAN-1.4

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dc.contributor.author Manngård, Tero
dc.contributor.author Jernkvist, Lars Olof
dc.contributor.author Massih, Ali
dc.date.accessioned 2012-02-17T14:08:47Z
dc.date.available 2012-02-17T14:08:47Z
dc.date.issued 2011 en_US
dc.identifier.citation 1-26 en_US
dc.identifier.uri http://hdl.handle.net/2043/13444
dc.description.abstract An integrated computer model for reactor fuel cladding rupture under loss-of-coolant accident (LOCA) conditions has been implemented in the transient fuel rod performance code FRAPTRAN. The model treats the zirconium alloy solid-to-solid phase transformation kinetics, cladding oxidation, cladding deformation, and eventually cladding rupture concurrently. It is for use together with the recently developed finite element based solution module in FRAPTRAN-1.4. The model has been employed to calculate ex-reactor single-rod transient burst tests in which the rod internal pressure and the heating rate were kept constant during the tests. The calculations are compared with experimental data on cladding rupture strain, temperature and pressure. Furthermore this model in FRAPTRAN-1.4 has been used to evaluate a LOCA simulation test within the IFA-650 series performed in the Halden boiling heavy- water reactor. The Halden test was made on a pressurized water reactor fuel rod with Zircaloy-4 cladding. It simulated the blowdown and refill (heatup) phase of a LOCA. The results of the FRAPTRAN-1.4 calculations are compared with experimental data on (i) maximum hoop strain at rupture, (ii) cladding diameter increase versus axial position, (iii) internal rod pressure versus time, (iv) peak cladding temperature at rupture, and (v) post-test cladding outer surface layer thickness. The results are discussed in terms of various uncertainties in the calculations. Nevertheless, the new implementation of the cladding rupture models indicates an overall improvement of the code for fuel rod LOCA analysis. en_US
dc.language.iso eng en_US
dc.publisher Quantum Technologies AB en_US
dc.subject Loss of coolant accident simulations en_US
dc.subject.classification Technology en_US
dc.title Evaluation of Loss-of-Coolant Accident Simulation Tests with the Fuel Rod Analysis Code FRAPTRAN-1.4 en_US
dc.type Conference Paper, other en_US
dc.relation.url http://www.hitemp2011.de/resources/HiTempConference_Program_Short_Internet+Sep1.pdf en_US
dc.contributor.department Malmö University. School of Technology en
dc.description.other HI TEMP 2011 Conference, September 20 to September 22, 2011 Millennium Hotel Boston, MA, USA en_US
dc.subject.srsc Research Subject Categories::TECHNOLOGY en_US
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