Development of a lattice code for htr

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August undefined, 2024

WebApr 11, 2024 · The problem in the RBWR seems, therefore, comparable to the double heterogeneity problem of high temperature reactor (HTR) fuel based on tristructural isotropic (TRISO) fuel particles. This problem was discussed in a paper by Kim et al. (2004) as part of a preliminary assessment of lattice physics for HTR analysis by Argonne National Lab . WebApr 11, 2011 · In this study, the multiplication factor and neutron spectrum behaviors were investigated against the moderator-to-fuel ratio, the fuel loading height, and the detector …

IAEA Convenes Global Experts to Assesses High Temperature …

WebThe following assumptions are made in the development of this plan: • NRC will take full advantage of the HTGR (or VHTR) R&D sponsored by the U.S. Department of Energy (DOE), in particular those activities dealing with generation of experimental data. • NRC will explore other international HTGR R&D programs (e.g., HTR-10, HTTR, RAPHAEL, WebHTR-Flor++: A Handwritten Text Recognition System Based on a Pipeline of Optical and Language Models . This work aimed to propose a different pipeline for Handwritten Text Recognition (HTR) systems in post-processing, using two steps to correct the output text. The first step aimed to correct the text at the character level (using N-gram model). optica halle

XPZ: Development of a lattice code for HTR Request PDF …

WebXPZ: Development of a lattice code for HTR @article{She2016XPZDO, title={XPZ: Development of a lattice code for HTR}, author={Ding She and Zhihong Liu and Lei … WebJul 1, 2011 · Request PDF Development of the coupled 3D neutron kinetics/thermal-hydraulics code DYN3D-HTR for the simulation of transients in block-type HTGR The Light Water Reactor (LWR) dynamics code ... WebHTR pebble-type design and safety analysis. Available at: Registered users of ONCORE STACY V/HTR safety analyses for the quantification of fission product release from the … optica fisheye lens

Simulation of the HTR-10 Operation History With the PANGU Code

WebThe development of lattice physics codes for reactor analysis began in the mid-1960s with the introduction of WIMS (Winfrith Improved Multigroup Scheme) at Winfrith in the UK (Askew et al. 1966a). The concept gathered all the processes for generating few-group cross section data into a modular collection of software that automated many of the ... WebNov 1, 2016 · This chapter presents a detailed description of the elements that comprise a lattice physics code. Lattice physics codes are used to generate cross section data for … portillon bekafor classicWebHighlights: • The XPZ code is development for the HTR lattice physics computation. • The Dancoff factor obtained from the double-heterogeneous model is used for resonance … portillon grace betafence

"WebJul 1, 2005 · Abstract. At NRG Petten, core physics analyses on High Temperature gas-cooled Reactors (HTRs) are mainly performed by means of the PANTHERMIX code system. Since some years NRG is developing the HTR reactor physics code system WIMS/PANTHERMIX, based on the lattice code WIMS (Serco Assurance, UK), the 3 … " - Development of a lattice code for htr

Development of a lattice code for htr

Development of the coupled 3D neutron kinetics/thermal-hydraulics code ...

WebPebble-bed HTR Code development ABSTRACT A new code named HINT (High Temperature Reactor Neutronics Tool) is under development in Institute of Nuclear and … Web•The XPZ code is development for the HTR lattice physics computation.•The Dancoff factor obtained from the double-heterogeneous model is used for resonance treatment.•Self-shielding factors are used to account for the spatially self-shielding effect.•The fuel compact is homogenized with preserving the first-collision probabilities.•The double heterogeneity …

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WebThis paper introduces the methodologies adopted in the XPZ code, including the resonance treatment, equivalent homogenization, transport calculation, and burnup calculation. … WebSep 1, 2024 · The proposed method has been implemented in a lattice physics code named XPZ for HTRs. Numerical results are presented for typical HTR fuel pebbles and …

WebA high-temperature gas-cooled reactor (HTGR), is a nuclear reactor that uses a graphite moderator with a once-through uranium fuel cycle.The HTGR is a type of high-temperature reactor (HTR) that can conceptually have an outlet temperature of 750 °C (1,380 °F). The reactor core can be either a "prismatic block" (reminiscent of a conventional reactor core) … WebWhat is a lattice? A lattice is defined as: the (infinite) set of points in an n-dimensional space given by all linear combinations with integer coefficients of a basis set of up to n …

WebSep 1, 2024 · Source term analysis is important in the design and safety analysis of advanced nuclear reactor and also provides a radiation safety analysis basis for Modular High-Temperature Gas-Cooled Reactor (HTR). High-Temperature Gas-Cooled Reactor-Pebble-bed Modules (HTR-PM) design by China is a typical Gen-IV and due to different … WebMay 1, 2000 · The sphere decoding (SD) algorithm is applied to the lattice sphere packing representation of a multi-antenna system and the algebraic space-time (ST) codes and yields a huge improvement over the well-known V-BLAST detection algorithm. We explore the lattice sphere packing representation of a multi-antenna system and the algebraic …

WebDec 31, 1995 · In the present paper, we have attempted to estimate the CVR for a CANDU New Generation (CANDU-NG) lattice, as proposed at an early stage of the Advanced CANDU Reactor (ACR) development. We have attempted to estimate the CVR with development version of the code DRAGON, using the method of characteristics.

WebIn this paper we will focus on the computational HTR reactor physics activities at NRG Petten, employing the HTR reactor physics code package PANTHERMIX, which is … portillon freezerWebIn this paper, the HTR-10 operation history is simulated with the PANGU code, which has been recently developed for HTGR reactor physics analysis and design. Models and … portillon gris anthracite 1m80WebNov 6, 2024 · An option for handling the spherical geometry of the lattice cell of a pebble bed reactor has been added in the code. Results of analysis of a number of HTR lattice cell benchmark problems are ... portillon easton portillo\u0027s willowbrook hoursWebcodes are lacking a modern software interface for coupling internally to other codes and no parallelized versions of these codes exist. This is not least due to the fact that these codes share a development history of up to 40 years. Without such an interface the only way to share data between two codes is writing and reading files. Due to the portillon bois westernWebdevelopment of computers—the early ’60s saw widespread adoption of the method. A workshop was devoted to these methods at NASA in the mid ’70s.1 A nearly universal standard for vortex lattice predictions was established by a code developed at NASA Langley (the various versions were available prior to the report dates): portillon cloheacWebout on HTR-10 to demonstrate its inherent safety features [7]. Following construction and operation of HTR-10, a high-temperature gas-cooled reactor-pebble bed module (HTR-PM) project was launched in the early 2000s. HTR-PM is a MHTGR demonstration plant with two 250MWth reactor modules, aiming to demonstrate safety, economic potential and optica hamburg