pebble bed references

REFERENCES: [1] Yoshiaki Ichihara, A Perspective on Nuclear Power Generation in the Future Electric Power Industry For Nonspecialists in the Electric Power Related Industries, in Proceedings of the IEEE, Vol. 89, No. 12, December 2001. [2] Jenny Weil, PebbleBed Design Returns, in IEEE Spectrum, November 2001, pg. 37 40.

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Theoretical Calculation and Analysis Modelling for the Theoretical Calculation and Analysis Modelling for the

Theoretical Calculation and Analysis Modelling for the

Contents • Introduction • Effective thermal conductivity (ETC) for 2D Lithium metatitanate(Li. 2. TiO. 3) pebble bed • ETC for 3D Li. 2. TiO. 3. pebble bed for monosized

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Pebblebed reactor Infogalactic: the planetary knowledge Pebblebed reactor Infogalactic: the planetary knowledge

Pebblebed reactor Infogalactic: the planetary knowledge

The pebblebed reactor (PBR) is a graphitemoderated, gascooled nuclear reactor is a type of veryhightemperature reactor (VHTR), one of the six classes of nuclear reactors in the Generation IV initiative.The basic design of pebblebed reactors features spherical fuel elements called pebbles. These tennis ballsized pebbles are made of pyrolytic graphite (which acts as the moderator), and

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Pebble bed reactor : definition of Pebble bed reactor and Pebble bed reactor : definition of Pebble bed reactor and

Pebble bed reactor : definition of Pebble bed reactor and

The pebble bed reactor (PBR) is a graphitemoderated, gascooled, nuclear reactor is a type of very high temperature reactor (VHTR), one of the six classes of nuclear reactors in the Generation IV initiative.Like other VHTR designs, the PBR uses TRISO fuel particles, which allows for high outlet temperatures and passive safety rkeley professor Richard A. Muller has called pebble bed

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Pebblebed reactor WikiMili, The Best Wikipedia ReaderPebblebed reactor WikiMili, The Best Wikipedia Reader

Pebblebed reactor WikiMili, The Best Wikipedia Reader

Sketch of a pebblebed reactor. Graphite pebble for reactor. The pebblebed reactor (PBR) is a design for a graphitemoderated, gascooled nuclear reactor is a type of veryhightemperature reactor (VHTR), one of the six classes of nuclear reactors in the Generation IV initiative.The basic design of pebblebed reactors features spherical fuel elements called pebbles.

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Performance of a Pebble Bed Thermal Storage Integrated Performance of a Pebble Bed Thermal Storage Integrated

Performance of a Pebble Bed Thermal Storage Integrated

A cook stove on packed pebble bed thermal storage having 0.3 m diameter and 0.9 m height and a storage capacity of 40.1 MJ of energy during a clear day and 12.85 MJ energy was simulated for charging and discharging (cooking), under Addis Ababa climatic condition for days, with highest and lowest solar irradiance and thermal storage efficiency

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Influence of pebble bed dimensions and filling factor on Influence of pebble bed dimensions and filling factor on

Influence of pebble bed dimensions and filling factor on

With increasing bed height to diameter ratio H/D, the influence of pebble friction at the cylindrical wall increases.Wall friction decreases the local bed pressure with increasing axial distance from the piston. For H/D=4.45, the bottom pressure is extremely reduced (see Fig. 3a). Fig. 3(b) shows the corresponding stress–strain behaviour: the beds become stiffer with increasing H/D because

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Pebble Bed Reactors Design Optimization Methods and their Pebble Bed Reactors Design Optimization Methods and their

Pebble Bed Reactors Design Optimization Methods and their

The Fluoride salt cooled High temperature Reactor (FHR) is a class of advanced nuclear reactors that combine the robust coated particle fuel form from high temperature gas cooled reactors, direct reactor auxillary cooling system (DRACS) passive decay removal of liquid metal fast reactors, and the transparent, high volumetric heat capacitance liquid fluoride salt working fluidsflibe (33

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Uncertainty and Sensitivity Analyses of a Pebble Bed HTGR Uncertainty and Sensitivity Analyses of a Pebble Bed HTGR

Uncertainty and Sensitivity Analyses of a Pebble Bed HTGR

The PEBBED pebble bed reactor fuel management code under development at the Idaho National Laboratory is designed for rapid design and analysis of pebble bed high temperature reactors (PBRs). Embedded within the code are the THERMIXKONVEK thermal fluid solver and the COMBINE7 spectrum generation code for inline cross section homogenization.

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Pebble bed modular reactor WikipediaPebble bed modular reactor Wikipedia

Pebble bed modular reactor Wikipedia

The Pebble Bed Modular Reactor (PBMR) is a particular design of pebble bed reactor under development by South African company PBMR (Pty) Ltd since 1994. The project entails the construction of a demonstration power plant at Koeberg near Cape Town (now postponed indefinitely) and a fuel plant at Pelindaba near Pretoria.

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Reactor Pressure Vessel Temperature Analysis For Reactor Pressure Vessel Temperature Analysis For

Reactor Pressure Vessel Temperature Analysis For

the Pebble Bed Modular Reactor (PBMR) propose using SA508 steel for the reactor vessel while those based on the GasTurbine Modular Helium Reactor (GTMHR) propose using SA336 (9Cr1MoV). SA508 steel has been used for reactor vessels

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Caution Is Needed in Operating and Managing the Waste of Caution Is Needed in Operating and Managing the Waste of

Caution Is Needed in Operating and Managing the Waste of

A new, commercialscale pebblebed hightemperature graphite reactor (HTGR) called HTRPM is about to come online. Despite its conceptual safety improvements over traditional reactors, the implementation poses several significant safety risks. In this commentary, the authors urge caution in operating HTRPM and suggest actions that could mitigate the chances of a serious accident.

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References 1. Zuoyi Zhang, Zongxin Wu, Design aspects of the Chinese modular hightemperature gascooled reactor HTRPM, Nuclear Engineering and Design 236 (2006) 485–490 2. Jiang, SY Yang, XT Tang, Experimental and numerical validation of a tworegiondesigned pebble bed reactor with dynamic core, HTRPM, Nuclear Engineering and Design 246

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Pebble bed modular reactor WikipediaPebble bed modular reactor Wikipedia

Pebble bed modular reactor Wikipedia

The Pebble Bed Modular Reactor (PBMR) is a particular design of pebble bed reactor under development by South African company PBMR (Pty) Ltd since 1994. The project entails the construction of a demonstration power plant at Koeberg near Cape Town (now postponed indefinitely) and a fuel plant at Pelindaba near Pretoria.

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UCB TH Report Series – FHR@UCBUCB TH Report Series – FHR@UCB

UCB TH Report Series – [email protected]

Control Blade Insertion Dynamics in PebbleBed FluorideSaltCooled High Temperature Reactors (UCBTH15005) Grant Buster, Ryan Sawadichai, Michael Laufer, and Per F. Peterson, "Control Blade Insertion Dynamics in PebbleBed FluorideSaltCooled High Temperature Reactors," Department of Nuclear Engineering, U.C. Berkeley, 2015.

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Automated Design and Optimization of PebbleBed Reactor Automated Design and Optimization of PebbleBed Reactor

Automated Design and Optimization of PebbleBed Reactor

This paper presents a conceptual design approach for hightemperature gascooled reactors using recirculating pebble bed cores. The method employs PEBBED, a reactor physics code specifically designed to solve for the asymptotic burnup state of pebble bed reactors in conjunction with a genetic algorithm to obtain a core with acceptable properties.

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Pebble Heater TechnologyPebble Heater Technology

Pebble Heater Technology

PebbleHeater Technology . The new regenerative heat exchanger is referred to as "PebbleHeater" a name already known in technical practice. It is filled with bulk material consisting of spherical pebbles and may operate at high temperatures to heat and cool gaseous media.

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Effects of particle size and region width on the mixing Effects of particle size and region width on the mixing

Effects of particle size and region width on the mixing

There is an increasing tendency of PSMI for tworegion pebble bed when the region ratio or size ratio rises. The size ratio has greater effects on the mixing and dispersion of pebble than the region ratio, since the occupied volumes and entropies in the mixing region in the relatively steady state are more strongly affected by the size ratio

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Pebble Bed Reactors Design Optimization Methods and their Pebble Bed Reactors Design Optimization Methods and their

Pebble Bed Reactors Design Optimization Methods and their

The Fluoride salt cooled High temperature Reactor (FHR) is a class of advanced nuclear reactors that combine the robust coated particle fuel form from high temperature gas cooled reactors, direct reactor auxillary cooling system (DRACS) passive decay removal of liquid metal fast reactors, and the transparent, high volumetric heat capacitance liquid fluoride salt working fluidsflibe (33

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Pebble Bed Reactors Design Optimization Methods and their Pebble Bed Reactors Design Optimization Methods and their

Pebble Bed Reactors Design Optimization Methods and their

The Fluoride salt cooled High temperature Reactor (FHR) is a class of advanced nuclear reactors that combine the robust coated particle fuel form from high temperature gas cooled reactors, direct reactor auxillary cooling system (DRACS) passive decay removal of liquid metal fast reactors, and the transparent, high volumetric heat capacitance liquid fluoride salt working fluidsflibe (33

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Pebble Bed Reactors Fran Tew March 15, 2016 Submitted as coursework for PH241, Stanford University, Winter 2016 Introduction . Pebble bed modular reactors (PBMR) are small, heliumcooled reactors that use small tennis ball size fuel balls consisting of only 9 grams of modified uranium per pebble to form a porous bed through which helium coolant flows.

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Pebble Bed Reactors Fran Tew March 15, 2016 Submitted as coursework for PH241, Stanford University, Winter 2016 Introduction . Pebble bed modular reactors (PBMR) are small, heliumcooled reactors that use small tennis ball size fuel balls consisting of only 9 grams of modified uranium per pebble to form a porous bed through which helium coolant flows.

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Parameter analysis and wall effect of radiative heat Parameter analysis and wall effect of radiative heat

Parameter analysis and wall effect of radiative heat

In the heat transportation of core of high temperature gascooled nuclear reactor (HTGR), radiative heat transfer plays a significant role in the CFDDEM simulations. The numerical investigation is conducted for parameter analysis and wall effect of the thermal radiation. A cell model is presented to discuss the effects of temperature and pebble size.

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Analytical Solution of Fick''s Law of the TRISO Analytical Solution of Fick''s Law of the TRISO

Analytical Solution of Fick''s Law of the TRISO

Two models for homogenous TRISOcoated fuel particles and fuel elements used in pebblebed high temperature gascooled reactors are presented, respectively. The analytical solution of Fick''s equation for fission products diffusion in fuel particles is derived by variables separation.

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pebblebed reactor (PBR) is a graphitemoderated, gascooled nuclear reactor is a type of veryhightemperature reactor (VHTR), one of the six classes of nuclear reactors in the Generation IV initiative.The basic design of pebblebed reactors features spherical fuel elements called pebbles. These tennis ballsized pebbles are made of pyrolytic graphite (which acts as the moderator), and

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(PDF) Thermal Energy Storage in Packed Pebble Bed Heat (PDF) Thermal Energy Storage in Packed Pebble Bed Heat

(PDF) Thermal Energy Storage in Packed Pebble Bed Heat

22 References. Download citation. Share . Facebook. to select for best suitable PCM''s and materials for the design of test bench of thermal energy storage unit of packed pebble bed heat

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Pebblebed reactor WikiMili, The Best Wikipedia ReaderPebblebed reactor WikiMili, The Best Wikipedia Reader

Pebblebed reactor WikiMili, The Best Wikipedia Reader

Sketch of a pebblebed reactor. Graphite pebble for reactor. The pebblebed reactor (PBR) is a design for a graphitemoderated, gascooled nuclear reactor is a type of veryhightemperature reactor (VHTR), one of the six classes of nuclear reactors in the Generation IV initiative.The basic design of pebblebed reactors features spherical fuel elements called pebbles.

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MODULAR PEBBLE BED REACTOR PROJECT UNIVERSITY MODULAR PEBBLE BED REACTOR PROJECT UNIVERSITY

MODULAR PEBBLE BED REACTOR PROJECT UNIVERSITY

The Modular Pebble Bed Reactor (MPBR) is an advanced reactor concept that can meet the energy and environmental needs of future generations as defined under DOE''s Generation IV initiative. Preliminary research has concluded that this technology has an excellent opportunity

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Pebble Heater TechnologyPebble Heater Technology

Pebble Heater Technology

PebbleHeater Technology . The new regenerative heat exchanger is referred to as "PebbleHeater" a name already known in technical practice. It is filled with bulk material consisting of spherical pebbles and may operate at high temperatures to heat and cool gaseous media.

Get price

References 1. Zuoyi Zhang, Zongxin Wu, Design aspects of the Chinese modular hightemperature gascooled reactor HTRPM, Nuclear Engineering and Design 236 (2006) 485–490 2. Jiang, SY Yang, XT Tang, Experimental and numerical validation of a tworegiondesigned pebble bed reactor with dynamic core, HTRPM, Nuclear Engineering and Design 246

Get price

Pebble bed reactor : definition of Pebble bed reactor and Pebble bed reactor : definition of Pebble bed reactor and

Pebble bed reactor : definition of Pebble bed reactor and

The pebble bed reactor (PBR) is a graphitemoderated, gascooled, nuclear reactor is a type of very high temperature reactor (VHTR), one of the six classes of nuclear reactors in the Generation IV initiative.Like other VHTR designs, the PBR uses TRISO fuel particles, which allows for high outlet temperatures and passive safety rkeley professor Richard A. Muller has called pebble bed

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Neutronics calculation methods for the first Neutronics calculation methods for the first

Neutronics calculation methods for the first

Cite this article: ZHANG Jingyu,LI Fu,SUN Yuliang. Neutronics calculation methods for the first core of the pebble bed high temperature gas cooled reactor[J]. Journal of Tsinghua University(Science and Technology), 2017, 57(4): 405409.

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PAPER OPEN ACCESS Performance analysis of digital X PAPER OPEN ACCESS Performance analysis of digital X

PAPER OPEN ACCESS Performance analysis of digital X

carried out in Indonesia, including pebble bed fuel technology. Pebble bed fuel has a diameter of 60 mm and a coated particle diameter of 0.92 mm. 10,000 to 15,000 layered particles are compacted in a graphite matrix to form pebble bed fuels as shown in Figure 1.

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UCB TH Report Series – FHR@UCBUCB TH Report Series – FHR@UCB

UCB TH Report Series – [email protected]

Control Blade Insertion Dynamics in PebbleBed FluorideSaltCooled High Temperature Reactors (UCBTH15005) Grant Buster, Ryan Sawadichai, Michael Laufer, and Per F. Peterson, "Control Blade Insertion Dynamics in PebbleBed FluorideSaltCooled High Temperature Reactors," Department of Nuclear Engineering, U.C. Berkeley, 2015.

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Automated Design and Optimization of PebbleBed Reactor Automated Design and Optimization of PebbleBed Reactor

Automated Design and Optimization of PebbleBed Reactor

This paper presents a conceptual design approach for hightemperature gascooled reactors using recirculating pebble bed cores. The method employs PEBBED, a reactor physics code specifically designed to solve for the asymptotic burnup state of pebble bed reactors in conjunction with a genetic algorithm to obtain a core with acceptable properties.

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NEUTRONIC ANALYSIS OF PEBBLE BED CORES WITH NEUTRONIC ANALYSIS OF PEBBLE BED CORES WITH

NEUTRONIC ANALYSIS OF PEBBLE BED CORES WITH

iii ABSTRACT Neutronic Analysis of PebbleBed Cores with Transuranics. (December 2007) Megan Leigh Pritchard, B.S., Texas A&M University Chair of Advisory Committee: Dr. Pavel V. Tsvetkov

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Pebble bed reactor : definition of Pebble bed reactor and Pebble bed reactor : definition of Pebble bed reactor and

Pebble bed reactor : definition of Pebble bed reactor and

The pebble bed reactor (PBR) is a graphitemoderated, gascooled, nuclear reactor is a type of very high temperature reactor (VHTR), one of the six classes of nuclear reactors in the Generation IV initiative.Like other VHTR designs, the PBR uses TRISO fuel particles, which allows for high outlet temperatures and passive safety rkeley professor Richard A. Muller has called pebble bed

Get price
Effects of particle size and region width on the mixing Effects of particle size and region width on the mixing

Effects of particle size and region width on the mixing

There is an increasing tendency of PSMI for tworegion pebble bed when the region ratio or size ratio rises. The size ratio has greater effects on the mixing and dispersion of pebble than the region ratio, since the occupied volumes and entropies in the mixing region in the relatively steady state are more strongly affected by the size ratio

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Computational Model for the Neutronic Simulation of Pebble Computational Model for the Neutronic Simulation of Pebble

Computational Model for the Neutronic Simulation of Pebble

The features of a detailed geometric computational model for pebble bed whole core analysis using MCNPX code, 2.6e version, were discussed. The double heterogeneity of the pebble bed (fuel pebbles inside the core and the TRISO particles inside the pebbles) was taken into account. The validation of model was carried out using the HTR10 benchmark.

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Models for reactor physics calculations for HTR pebble bed Models for reactor physics calculations for HTR pebble bed

Models for reactor physics calculations for HTR pebble bed

For reactor physics calculations for modular pebble bed reactors program systems and nuclear data have to be used to get reliable results for important operational and safety related parameters. For cylindrical or annular core geometry such parameters can be calculated with the modular program system ZIRKUS and additionally with common reactor physics programs based on SN and

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References ASMEReferences ASME

References ASME

The effective thermal diffusivity as well as conductivity of pebble bed will be measured at temperature up to 1600 °C in the underconstruction facility with the fullscale in radius. The inverse method gives a global optimal relationship between thermal diffusivity and temperature through those thermocouple values in the pebble bed facility

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UCB TH Report Series – FHR@UCBUCB TH Report Series – FHR@UCB

UCB TH Report Series – [email protected]

Control Blade Insertion Dynamics in PebbleBed FluorideSaltCooled High Temperature Reactors (UCBTH15005) Grant Buster, Ryan Sawadichai, Michael Laufer, and Per F. Peterson, "Control Blade Insertion Dynamics in PebbleBed FluorideSaltCooled High Temperature Reactors," Department of Nuclear Engineering, U.C. Berkeley, 2015.

Get price
Automated Design and Optimization of PebbleBed Reactor Automated Design and Optimization of PebbleBed Reactor

Automated Design and Optimization of PebbleBed Reactor

This paper presents a conceptual design approach for hightemperature gascooled reactors using recirculating pebble bed cores. The method employs PEBBED, a reactor physics code specifically designed to solve for the asymptotic burnup state of pebble bed reactors in conjunction with a genetic algorithm to obtain a core with acceptable properties.

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pebble bed is divided into many parallel layers by many parallel cutting walls. As the thicknesses of these layers approaching zero, the local packing factor is determined by the area ratio of the summed intersection areas between all pebbles and the cutting wall to

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(PDF) Tritium Release Characteristics of Neutron (PDF) Tritium Release Characteristics of Neutron

(PDF) Tritium Release Characteristics of Neutron

Increasing the temperature of the Be pebble bed during neutron irradiation from 523823 K to 10001045 K may reduce the tritium inventory in the Be pebbles by factor of ⩾2.

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R&ampD of a Li2TiO3 pebble bed for a test blanket module in R&ampD of a Li2TiO3 pebble bed for a test blanket module in

R&D of a Li2TiO3 pebble bed for a test blanket module in

To verify the pebble bed''s nuclear properties, the activation foil method was proposed and a preliminary experiment was conducted. To reduce the tritium permeation, the chemical densified coating method was developed and the coating was attached to F82H steel. References. Hoshino T. et al 2004 Nonstoichiometry of Li 2 TiO 3 under hydrogen

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Pebble bed pebble motion: Simulation and Appliion Pebble bed pebble motion: Simulation and Appliion

Pebble bed pebble motion: Simulation and Appliion

Pebble bed reactors (PBR) have moving graphite fuel pebbles. This unique feature provides advantages, but also means that simulation of the reactor requires understanding the typical motion and loion of the granular flow of pebbles. This dissertation presents a method for simulation of motion of the pebbles in a PBR. A new mechanical motion simulator, PEBBLES, efficiently simulates the key

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