CUED Publications database

Assessment of homogeneous thorium/uranium fuel for pressurized water reactors

Galperin, A and Shwageraus, E and Todosow, M (2002) Assessment of homogeneous thorium/uranium fuel for pressurized water reactors. Nuclear Technology, 138. pp. 111-122. ISSN 0029-5450

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The homogeneous ThO 2 -UO 2 fuel cycle option for a pressurized water reactor (PWR) of current technology is investigated. The fuel cycle assessment was carried out by calculating the main performance parameters: natural uranium and separative work requirements, fuel cycle cost, and proliferation potential of the spent fuel. These performance parameters were compared with a corresponding slightly enriched (all-U) fuel cycle applied to a PWR of current technology. The main conclusion derived from this comparison is that fuel cycle requirements and fuel cycle cost for the mixed Th/U fuel are higher in comparison with those of the all-U fuel. A comparison and analysis of the quantity and isotopic composition of discharged Pu indicate that the Th/U fuel cycle provides only a moderate improvement of the proliferation resistance. Thus, the overall conclusion of the investigation is that there is no economic justification to introduce Th into a light water reactor fuel cycle as a homogeneous ThO 2 -UO 2 mixture.

Item Type: Article
Divisions: Div A > Energy
Depositing User: Cron Job
Date Deposited: 17 Jul 2017 19:21
Last Modified: 17 May 2018 07:23