MOX fuel use in a BWR with extended power up-rate

Ramírez, José Ramón; Enriquez, Pastor; Castillo, Rogelio; Alonso, Gustavo

doi:10.1016/j.anucene.2012.07.008

Cited by 6 publications

(2 citation statements)

References 2 publications

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“…Together with transuranic elements (TRU), they represent the high level waste (HLW). While plutonium as major part of TRU can be used nowadays as Mixed oxide (MOX) fuel (Carbajo et al, 2001;Ramirez et al, 2012), the minor actinides (MA) such as americium, curium, and neptunium are not considered as fuel for present nuclear power plants.…”

Section: Introductionmentioning

confidence: 99%

Shortening transmutation time by using the molten salt reactor

Biß

Thomauske

2015

Annals of Nuclear Energy

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a b s t r a c tThis paper investigates the duration of the Partitioning and Transmutation process for different efficiencies in the total mass reduction of high-level waste by describing the mass flow during the process. Besides the transmutation and partitioning efficiency per fuel cycle, the impact of the deployed thermal power and the refreshing time, which is the sum of cooling, reprocessing, and fabrication time, was analyzed. It was discovered that besides the transmutation efficiency the refreshing time has a significant impact on the duration. The molten salt reactor concept is proposed in order to realize this potential for shortening the time consuming P&T process.

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Section: Introductionmentioning

confidence: 99%

Shortening transmutation time by using the molten salt reactor

Biß

Thomauske

2015

Annals of Nuclear Energy

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“…Due to the boom so important and acceptance of the power uprate in nuclear power plants around the world have now emerged advanced technological proposals and designs to improve core nuclear reactor performance, such as the use the MOX fuel in a BWR with extended power uprate (Ramírez et al, 2012), or thermal hydraulic analysis of dual-cooled annular nuclear fuel for OPR-1000 (Shin et al, 2012).…”

Section: Introductionmentioning

confidence: 99%

Analysis of Power Uprate in Nuclear Power Plants

Nuñez-Carrera¹,

Carreño-Padilla²,

Espinosa-Martínez³

et al. 2017

Energy Research Journal

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The three main strategies used by the utilities in order to obtain more benefits from the nuclear installations focused on electricity production and in order to satisfy their demand without carbon dioxide emissions are: (1) Power uprate, (2) plant life management and (3) plant life extension. Alone in the United States, the Nuclear Regulatory Commission has approved more than 140 Nuclear Power Plant (NPP) power uprates since 1977, which represent the equivalent of five new Nuclear Power Plants (NPPs). While in the rest of the world the NPP uprates represent the equivalent of two new NPP. This study is a compilation of the power uprate experience in the whole world and a discussion about important problems detected due to this process in Light Water Reactors (LWR), specifically for Boiling Water Reactors (BWR). The power uprate involves the reanalysis of many topics in order to assure that the safety operational margins are kept. The new radiological consequences, structural integrity of the systems, vibrations, core heat balance and thermal-hydraulics behavior under transient and accident conditions, are some of the aspects to be considered during power uprate processes. As special case the Laguna Verde Power Nuclear Power Plant (LVNPP) Extended Power Uprate (EPU) is presented, whose experience indicated that the steam dryer loads are crucial for uprates in BWR´s.

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