Study on the recently proposed direct S-CO sub(2) and helium-cooled GCFR: Size of vessel, power conversion, and reactivity coefficients

This article contains a review on the history, progress, and objectives of the GCFR as well as a review on the newly proposed TID-type and block-type fuels of a GCFR, together with a research on their selected physical parameters. We have roughly estimated and compared size of core vessel of a sugge...

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Bibliographic Details
Published in:Progress in nuclear energy (New series) 2015-05, Vol.81, p.113-122
Main Authors: Mohammadi, M M, Faghihi, F, Pirouzmand, A, Rabiee, A
Format: Article
Language:English
Subjects:
Blocking
Carbon dioxide
Coolants
Doppler
Doppler effect
Energy conversion
Fuels
Vessels
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Summary:This article contains a review on the history, progress, and objectives of the GCFR as well as a review on the newly proposed TID-type and block-type fuels of a GCFR, together with a research on their selected physical parameters. We have roughly estimated and compared size of core vessel of a suggested GCFR for S-CO sub(2) and helium cooled as well as power conversion system efficiencies for a direct super-critical CO sub(2) cooled cores. Moreover, the Coolant Void Reactivity (CVR) and Doppler coefficient for a reference GCFR with two different coolant types (supercritical CO sub(2) and helium) and either different matrix materials (blended: fuel + diluents) in the block type core is calculated. MCNP 5.0 was used for our neutronic simulation and MAKXSF module was used to Doppler broaden the cross sections. Finally, the burn up comparison for two coolants and also for suggested diluents is also performed herein.
ISSN:0149-1970
DOI:10.1016/j.pnucene.2014.12.014