Burnable Poison-Doped Fuel

Hesketh, Kevin

doi:10.1016/b978-0-08-056033-5.00037-9

Cited by 8 publications

(6 citation statements)

References 2 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…ZrB 2 was ruled out for the reactor investigated here since there was concern that the high concentrations of ZrB 2 necessary would create issues regarding rod internal pressure from helium production (Hesketh (2012)); also, the thickness of ZrB 2 necessary to suppress reactivity would 6 be far beyond existing experience raising concerns about the mechanical behaviour of the layer. Er 2 O 3 exhibits favourable neutronic properties for long-life cores but current experimental data indicates poor behaviour relating to achievable fuel densities at high concentrations (> 2 wt.%) (Yamanaka et al (2009)).…”

Section: Selected Burnable Poisonmentioning

confidence: 99%

The core design of a Small Modular Pressurised Water Reactor for commercial marine propulsion

Peakman

Owen

Abram

2019

Progress in Nuclear Energy

View full text Add to dashboard Cite

If international agreements regarding the need to significantly reduce greenhouse gas emissions are to be met then there is a high probability that the shipping industry will have to dramatically reduce its greenhouse gas emissions. For emission reductions from ships greater than around 40% then alternatives to fossil fuels -such as nuclear energy -will very likely be required. A Small Modular Pressurised Water Reactor design has been developed specifically to meet the requirements of a large container ship with a power requirement of 110 MWe. Container ships have a number of requirements -including a small crew size and reduced outages associated with refuelling -that result in a greater focus on design simplifications, including the elimination of the chemical reactivity control system during power operation and a long core life.We have developed a novel, soluble-boron free, low power density core that does not require refuelling for 15 years. The neutronic and fuel performance behaviour of this system has been studied with conventional UO 2 fuel. The size of the pressure vessel has been limited to 3.5 metres in diameter. Furthermore, to ensure the survivability of the cladding material, the coolant outlet temperature has been reduced to 285 • C from 320 • C as in conventional GWe-class PWRs, with a resulting reduction in thermal efficiency to 25%. The UO 2 core design was able to satisfactorily meet the majority of requirements placed upon the system assuming that fuel rod burnups can be limited to 100 GWd/tHM. The core developed here represents the first workable design of a commercial marine reactor using conventional fuel, which makes realistic the idea of using nuclear reactors for shipping.

show abstract

Section: Selected Burnable Poisonmentioning

confidence: 99%

The core design of a Small Modular Pressurised Water Reactor for commercial marine propulsion

Peakman

Owen

Abram

2019

Progress in Nuclear Energy

View full text Add to dashboard Cite

show abstract

“…Extensive work has already been published in the past on the synthesis and properties (e.g. phase behavior, thermal expansion and thermal conductivity) of Gd 2 O 3 -doped UO 2 [4,3] and references therein. Also recently, research is still being performed in this field [5][6][7][8].…”

Section: Introductionmentioning

confidence: 99%

“…The most important application of the addition of dopants to UO 2 is the production of neutron-absorbing fuel (NAF), which is used to optimize the reactivity in nuclear power reactors by reducing the reactivity of fresh fuel assemblies at the beginning of their active life in the reactor [1][2][3] and references therein. Gadolinia (Gd 2 O 3 ) is very suitable for the production of NAFs due to the large neutron-absorption cross section of the gadolinium isotopes 155 Gd and 157 Gd.…”

Section: Introductionmentioning

confidence: 99%

Synthesis of UO2 and ThO2 doped with Gd2O3

Baena

Cardinaels

Vos

et al. 2015

Journal of Nuclear Materials

View full text Add to dashboard Cite

“…They greatly extend cycle lengths and hence reduce required outages by acting to flatten the neutron flux over the cycle length and spatially across the core. As a burnable poison, gadolinum has a significant advantages over alternatives; it provides the ability for engineers to independently tune both the initial burn-off rate of the poison and the total negative reactivity introduced [6].…”

Section: Introductionmentioning

confidence: 99%

“…Within many commercial plants, UO 2 and gadolinia (Gd 2 O 3 ) are co-blended prior to sintering. The (U,Gd)O 2 pellet shows some variation from UO 2 fuel performance, but has been successful enough to see commonplace commercial service around the world [6].…”

Section: Introductionmentioning

confidence: 99%

The use of gadolinium as a burnable poison within U3Si2 fuel pellets

Turner

Buckley

Phillips

et al. 2018

Journal of Nuclear Materials

View full text Add to dashboard Cite

Gadolinium was mixed with uranium silicide in order to investigate the potential for its use as a burnable poison with a future Accident Tolerant Fuel (ATF) system. Three methods of manufacture were investigated, including two arc melting methods and powder blending. All methods failed to produce structurally robust pellets and were seen to produce inhomogeneous material consisting of multiple silicide phases. Of particular concern was the observation of uranium metal and (U,Gd)O 2 phases within the final material.

show abstract

Burnable Poison-Doped Fuel

Cited by 8 publications

References 2 publications

The core design of a Small Modular Pressurised Water Reactor for commercial marine propulsion

The core design of a Small Modular Pressurised Water Reactor for commercial marine propulsion

Synthesis of UO2 and ThO2 doped with Gd2O3

The use of gadolinium as a burnable poison within U3Si2 fuel pellets

Contact Info

Product

Resources

About