\
menu
pebble bed fusion

Popular

Continuum models for pebble beds in fusion blankets

For a reliable design of fusion blankets with breeding pebble beds it is important to have validated computational tools for predicting the thermomechanical conditions like stresses, strains, or heat transfer An early blanket using pebble beds as breeding material had been proposed by Dalle Donne, Fischer, Norajitra, Reimann and Reiser 1995..

Know More

The new, safer nuclear reactors that might help stop ,

27-02-2019 0183 32 Pebble bed in 2019 sodium-cooled 2025 molten salt 2030 No earlier than 2035 For many, though, the great energy hope remains nuclear fusion..

Know More

Fusion reactor pebble bed studied by X

24-09-2010 0183 32 Fusion reactor pebble bed studied by X-ray tomography The thermo-mechanical behaviour of pebble beds in the blanket of a fusion reactor depends on pebble arrangement in the beds, the number of pebble-pebble and pebble-blanket wall contacts, as well as the respective contact surfac The safe operation of the blanket requires efficient tritium ...

Know More

Effect of packing structure on mechanical properties of ,

Abstract The tritium ceramic breeder pebble bed, used for tritium breeding and in nuclear fusion reactor, is a key constituent of helium cooled solid breeder blankets The mechanical properties of the pebble beds, along with the integrity of the particles are very important for the extraction of tritium and safe operation of the solid blanket..

Know More

Fusion reactor pebble bed studied by X

24-09-2010 0183 32 Fusion reactor pebble bed studied by X-ray tomography News Spotlight on Science 24-09-2010 The thermo-mechanical behaviour of pebble beds in the blanket of a fusion reactor depends on pebble arrangement in the beds, the number of pebble-pebble and pebble-blanket wall contacts, as well as the respective contact surfac..

Know More

Heat Transfer in Pebble Beds for Fusion Blankets ,

AbstractThe design of a fusion reactor blanket based on a bed of lithium-containing ceramic pebbles or a mixture of ceramic and metallic pebbles requires knowledge of the effective thermal conductivity of such beds Binary mixtures of spheres with the same diameter but different conductivities as well as beds formed by one type of sphere are investigated..

Know More

J Plasma Fusion R SERIES, Vol 11 2015

3 pebble bed based on the principles of the steady state and the axial heat flow methods The pebble bed has pebbles of 17-20 mm diameter and a packing fraction of 61 The hot wire method is a standard transient experimental technique, used widely to measure the thermal conductivity of pebbles beds Remiann and..

Know More

Preliminary Design of a Fusion

Preliminary Design of a Fusion-fission Tokamak Pebble Bed Reactor by Vincent Tang Submitted to the Department of Nuclear Engineering On May 23, 2002 in Partial Fulfillment of the Requirements for the Degree of Master of Science in Nuclear Engineering Abstract A fusion-fission reactor consisting of an ITER-like tokamak and spent fuel from the..

Know More

Joerg Reimann et al Publications on Thermomechanics of ,

pebble bed thermo-mechanics R D and impact on breeder material mechanical strength Fusion Engineering and Design, 87 2012 S1130-1137 Pieritz, RA Reimann, J Ferrero, C 3D tomography analysis of the inner structure of pebbles and pebble beds..

Know More

Heat Transfer in Pebble Beds for Fusion Blankets Fusion ,

09-05-2017 0183 32 The design of a fusion reactor blanket based on a bed of lithium-containing ceramic pebbles or a mixture of ceramic and metallic pebbles requires knowledge of the effective thermal conductivity of such beds Binary mixtures of spheres with the same diameter but different conductivities as well as beds formed by one type of sphere are investigated..

Know More

Fusion reactor pebble bed studied by X

24-09-2010 0183 32 Fusion reactor pebble bed studied by X-ray tomography The thermo-mechanical behaviour of pebble beds in the blanket of a fusion reactor depends on pebble arrangement in the beds, the number of pebble-pebble ,..

Know More

Numerical analysis for thermal and mechanical properties ,

In solid breeder blanket design of fusion power plants, the ceramic breeder pebble bed plays a very important role Its mechanical and thermal properties are necessary to design the blanket In this study, thermomechancal properties of the bed such as effective thermal conductivity and stress-strain relation are investigated by means of numerical simulation..

Know More

On Thermal Characterization of Breeder Pebble Beds with ,

Lithium ceramic pebble beds are a proposed form for tritium breeding volumes in fusion reactors In application, the beds will endure high volumetric energy deposition densities but must maintain within relatively-narrow prescribed temperature operating windows for efficient tritium release, while also providing continued transport of high quality heat into coolants for power ,..

Know More

The law of the sorting phenomenon to the solid blanket ,

The pebble bed will inevitably suffer from various forms of disturbance during service of the blanket in the fusion reactor Therefore, it is significant to consider the influence of the sorting phenomenon caused by the disturbance on the design of ,..

Know More

New Reactor Types

Pebble bed modular reactor - Wikipedia..

Know More

Could Fusion Energy Provide a Safer Alternative to Nuclear ,

20-11-2021 0183 32 These appear to No Betteridge Wins on a Technicality Score 2 by Roger W Moore 538166 writes Fusion cannot provide any sort of alternative to nuclear power because fusion is nuclear power It may be a different type of nuclear power to the fission reactors we have today but it very much is nuclear..

Know More

Pebble bed modular reactor

The Pebble Bed Modular Reactor PBMR is a particular design of pebble bed reactor developed by South African company PBMR Pty Ltd from 1994 until 2009 PBMR facilities include gas turbine and heat transfer labs at the Potchefstroom Campus of North-West University, and at Pelindaba, a high pressure and temperature helium test rig, as well as a prototype fuel ,..

Know More

Heat Transfer in Pebble Beds for Fusion Blankets ,

AbstractThe design of a fusion reactor blanket based on a bed of lithium-containing ceramic pebbles or a mixture of ceramic and metallic pebbles requires knowledge of the effective thermal conductivity of such beds Binary mixtures of spheres with the same diameter but different conductivities as well as beds formed by one type of sphere are investigated The pebbles ,..

Know More

Preliminary Design of a Fusion

A fusion-fission reactor consisting of an ITER-like tokamak and spent fuel from the Pebble Bed Modular Reactor PBMR is preliminary designed and examined The objectives of this reactor, ITER-PBR, are to extend the burnup of spent pebble fuel and to achieve a significant power output while maintaining passive safety and simplicity The fuel cycle of this energy-producing ,..

Know More

Modeling and Transient Analysis for the Pebble Bed ,

Examples include the Pebble Bed Modular Reactor, which is planned to be built in South Africa starting in 2007, or the General Atomics GT-MHR, which is one of the designs being considered for the Next Generation Nuclear Plant project Also of..

Know More