Performance Evaluation of a High Thermal Conductivity Fuel With Graphene Additives During the LBLOCA

Absorption Cross ◽

Fuel Rod ◽

Graphene Composite ◽

Safety Margins ◽

Composite Fuel ◽

The fuel rod performance of enhanced thermal conductivity UO2/graphene composites is investigated through a LBLOCA analysis. The benefits increased monotonically with increasing thermal conductivity in terms of reduced fuel center temperature and PCT. The performance of the UO2/graphene composite fuel is assessed in OPR-1000 (Optimized Power Reactor-1000) during a LBLOCA. Graphene can be a promising material for developing advanced nuclear fuel because of its property about the high thermal conductivity and low absorption cross section. The results confirm a LBLOCA performance related to PCT of the UO2/graphene composite fuel and its potential while maintaining large safety margins.

Preparation and characterization of surface modified boron nitride epoxy composites with enhanced thermal conductivity

RSC Advances ◽

10.1039/c4ra07394k ◽

2014 ◽

Vol 4 (83) ◽

pp. 44282-44290 ◽

Cited By ~ 169

Author(s):

Jun Hou ◽

Guohua Li ◽

Na Yang ◽

Lili Qin ◽

Maryam E. Grami ◽

...

Keyword(s):

Mechanical Properties ◽

Thermal Conductivity ◽

Thermal Stability ◽

Boron Nitride ◽

Epoxy Composites ◽

Surface Modified ◽

Enhanced Thermal Conductivity ◽

Electrical Insulation Properties

The fabricated surface modified boron nitride epoxy composites exhibit high thermal conductivity, superior thermal stability and good mechanical properties while retaining good electrical insulation properties.

FCM Fuel Development for SMR Applications

ASME 2011 Small Modular Reactors Symposium ◽

10.1115/smr2011-6608 ◽

2011 ◽

Cited By ~ 2

Author(s):

Kurt A. Terrani ◽

Lance L. Snead ◽

Jess C. Gehin

Keyword(s):

Thermal Conductivity ◽

Fission Product ◽

Pressure Vessels ◽

Environmental Stability ◽

Composite Fuel ◽

Passively Safe ◽

Fuel Technology

Fully ceramic microencapsulated (FCM) fuels are identified as suitable fuel forms for development and deployment of SMR technologies. High thermal conductivity of the composite fuel coupled with its exceptional radiation and environmental stability enable monolithic compact cores for SMR applications. Meanwhile the built-in redundancy of multiple layers for fission-product retention alleviates the need for structurally demanding pressure vessels and containment buildings. All of the above will enable the reactor designer to achieve a compact and passively safe SMR through utilization of a flexible fuel technology that is currently under active development.

Extremely high thermal conductivity of nanodiamond-polydopamine/thin-layer graphene composite films

Composites Science and Technology ◽

10.1016/j.compscitech.2018.08.010 ◽

2018 ◽

Vol 167 ◽

pp. 313-322 ◽

Cited By ~ 7

Author(s):

Hui-Ching Yuan ◽

Chi-Young Lee ◽

Nyan-Hwa Tai

Keyword(s):

Thermal Conductivity ◽

Thin Layer ◽

Composite Films ◽

Layer Graphene ◽

Graphene Composite

Enhanced thermal conductivity of nanocomposites with MOF-derived encapsulated magnetic oriented carbon nanotube-grafted graphene polyhedra

RSC Advances ◽

10.1039/c9ra09199h ◽

2020 ◽

Vol 10 (6) ◽

pp. 3357-3365 ◽

Cited By ~ 2

Author(s):

Xu Li ◽

Ya Li ◽

Md Mofasserul Alam ◽

Peng Chen ◽

Ru Xia ◽

...

Keyword(s):

Thermal Conductivity ◽

Carbon Nanotube ◽

Metal Organic Framework ◽

Metal Organic ◽

Magnetic Carbon ◽

Enhanced Thermal Conductivity ◽

Organic Framework

A high-thermal conductivity filler of magnetic carbon nanotube-grafted graphene polyhedra is exploited via annealing of a metal–organic framework (ZIF-67).

Enhanced Thermal Conductivity UO2-GaN Fuel, Proposed Fabrication Methods and Multiphysics Fuel Behavior Analysis

Volume 9: Student Paper Competition ◽

10.1115/icone25-67167 ◽

2017 ◽

Cited By ~ 1

Author(s):

Wei Zhou ◽

Rong Liu ◽

Wenzhong Zhou

Keyword(s):

Thermal Conductivity ◽

Fuel Temperature ◽

Fuel Performance ◽

Plasma Sintering ◽

Exploratory Approach ◽

Composite Fuel ◽

Spark Plasma ◽

Metal Ratio ◽

Irradiation Performance ◽

In this paper, we first propose a novel composite nuclear fuel of UO2-GaN, which has never been reported before, and then its fully coupled multiphysics fuel performance is investigated using the CAMPUS code developed by ourselves. We propose two different fabrication methods to obtain the UO2-GaN fuel, which are Green Granule/Slug Bisque and Spark Plasma Sintering, respectively, resulting in different fuel thermal conductivities. By comparing two kinds of UO2-GaN fuel which are fabricated by two methods, we found that fuel fabricated by Green Granule/Slug Bisque possesses high thermal conductivity and performs well during the reactor operation. The gap width, gap conductance, fission gas release, plenum pressure, deviation of oxygen to metal ratio and displacement are all studied in this work. The performance of this novel fuel is also compared with the traditional UO2 fuel. The UO2-GaN enhanced thermal conductivity composite fuel shows the potential of decreasing the fuel temperature, and improving fuel performance and reactor safety. This makes GaN a good candidate to fabricate composite fuel with UO2 from the thermal standpoint. However, this work is to conduct an exploratory approach to the effect for the GaN addition to UO2 fuel with very limited data. So, further studies are still needed on GaN’s compatibility with UO2, neutronic behavior, fission product retention capabilities and irradiation performance, both on experimental measurements and numerical simulations.

Technical Project Plan for The Enhanced Thermal Conductivity of Oxide Fuels Through the Addition of High Thermal Conductivity Fibers and Microstructural Engineering

10.2172/990244 ◽

2010 ◽

Author(s):

Daniel F Hollenbach ◽

Larry J Ott ◽

Theodore M Besmann ◽

Beth L Armstrong ◽

Andrew A Wereszczak ◽

...

Keyword(s):

Thermal Conductivity ◽

Project Plan ◽

Highly flexible biodegradable cellulose nanofiber/graphene heat-spreader films with improved mechanical properties and enhanced thermal conductivity

Journal of Materials Chemistry C ◽

10.1039/c8tc04859b ◽

2018 ◽

Vol 6 (46) ◽

pp. 12739-12745 ◽

Cited By ~ 26

Author(s):

Yapeng Chen ◽

Xiao Hou ◽

Ruiyang Kang ◽

Yun Liang ◽

Liangchao Guo ◽

...

Keyword(s):

Mechanical Properties ◽

Thermal Conductivity ◽

Composite Film ◽

Cellulose Nanofiber ◽

Heat Spreader ◽

Graphene Composite ◽

A highly flexible cellulose nanofiber/graphene composite film with metal-like thermal conductivity and outstanding strength was fabricated via simple vacuum-assisted filtration.