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논문 기본 정보

자료유형
학술저널
저자정보
Alok Jha (Homi Bhabha National Institute) Anurag Gupta (HBNI) Rajarshi Das (Station Reactor Physicist Kakrapar Atomic Power Project NPCIL India) Shantanu D. Paraswar (Tarapur Atomic Power Station)
저널정보
한국원자력학회 Nuclear Engineering and Technology Nuclear Engineering and Technology 제52권 제12호
발행연도
2020.12
수록면
2,760 - 2,770 (11page)
DOI
https://doi.org/10.1016/j.net.2020.05.024

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A model for calculation of fuel temperature profile using binary gas mixture of Helium and Xenon for gapgas conductance is proposed here. In this model, the temperature profile of a fuel pencil from fuelcentreline to fuel surface has been calculated by taking into account the dilution of Helium gas filledduring fuel manufacturing due to accumulation of fission gas Xenon. In this model an explicit calculationof gap gas conductance of binary gas mixture of Helium and Xenon has been carried out. A computercode Fuel Characteristics Calculator (FCCAL) is developed for the model. The phenomena modelled byFCCAL takes into account heat conduction through the fuel pellet, heat transfer from pellet surface to thecladding through the gap gas and heat transfer from cladding to coolant. The binary noble gas mixturemodel used in FCCAL is an improvement over the parametric model of Lassmann and Pazdera. The resultsobtained from the code FCCAL is used for fuel temperature calculation in 3-D neutron diffusion solver forthe coolant outlet temperature of the core at steady operation at full power. It is found that there is animprovement in calculation time without compromising accuracy with FCCAL.

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