5X5 Rod Bundle Flow Field Measurements Downstream a PWR Spacer Grid
Brazilian Journal of Radiation Sciences, 2020 The spacer grids are structures present in nuclear fuel assembly of Pressurized Water Reactors (PWR). They play an important structural role and also assist in heat removal through the assembly by promoting increased turbulence of the flow. Understanding
Higor Fabiano Pereira de Castro +3 more
doaj +1 more source
Preliminary analysis of the impact of the General Electric wave beam grid spacer on GCFR core performance [PDF]
, 1979 This report consists of the following three separate analyses: Calculation of a Pressure Loss Coefficient for a GCFR Staggered Wave Beam Grid Spacer; Effect of Staggered Wave Beam Grid Spacer on Local Clad Temperature Distribution; and Preliminary ...
core +1 more source
Motion of Small Bubbles near a Grid Spacer in a Two by Three Rod Bundle
Journal of Fluid Science and Technology, 2008 Motion of small bubbles upstream of a grid spacer in a two by three rod bundle is experimentally investigated. Trajectories of single bubbles upstream of the grid spacer are recorded by using a high-speed video camera. An image processing method based on
Zheng ZHANG +3 more
doaj +1 more source
Preliminary numerical study of single bubble dynamics in swirl flow using volume of fluid method
Nuclear Engineering and Technology, 2021 Spacer grid with mixing vane had been widely used in nuclear reactor core. One of the main feather of spacer grid with mixing vane was that strong swirl flow was formed after the spacer grid.
Zhongchun Li +6 more
doaj +1 more source
Mechanical robustness of AREVA NP's GAIA fuel design under seismic and LOCA excitations
Nuclear Engineering and Technology, 2018 Recent events in the nuclear industry have resulted in a movement towards increased seismic and LOCA excitations and requirements that challenge current fuel designs.
Brian Painter +4 more
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Designing HVDC GIS/GIL spacer to suppress charge accumulation
High Voltage, 2022 To suppress the charge accumulation on the spacer surface in direct current (DC) gas insulated transmission line (GIL) is an important and emergent issue for the development of a clean, safe and economic smart grid.
Zuodong Liang +10 more
doaj +1 more source
Modeling and Simulation Analysis on Mixing Characteristics of Two-Phase Flow Around Spacer Grid
Frontiers in Energy Research, 2022 The spacer grid has a significant impact on the thermal-hydraulic characteristics of the rod bundle channel, which directly determines the possibility of a boiling crisis.
Y. Xiao +5 more
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Validation for CFD Simulation in Rod Bundles With Split-Vane Spacer Grids Based on LDA Measurement
Frontiers in Energy Research, 2020 Laser Doppler anemometry (LDA) measurement of axial flow velocity and pressure drop measurement has been carried out in a 5 × 5 rod bundle installed with two split-mixing-vane grids. The measured results are utilized to validate the CFD simulation.
Jinbiao Xiong, Chuan Lu, Wenhai Qu
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Numerical and experimental investigation of the water flow through PWR spacer grids
Brazilian Journal of Radiation Sciences, 2021 Spacer grids are one of main components of a Pressurized Water Reactor (PWR) fuel assembly. They are able to improve heat transfer from rod bundles to the water flow by increasing turbulence and mixture of this flow.
Higor Fabiano Pereira de Castro +8 more
doaj +1 more source
A Middleware Independent Grid Workflow Builder for Scientific Applications [PDF]
, 2009 particular workflow engines built into Grid middleware, or are application specific and are designed to interact with specific software implementations.
Johnson, David +2 more
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