Results 21 to 30 of about 233,779 (288)
Experimental investigation of the coolant flow in the VVER reactor core with TVSA fuel assemblies [PDF]
Nuclear Energy and Technology, 2021 The paper presents the results of an experimental study to investigate the coolant interaction in adjoining fuel assemblies in the VVER reactor core composed of TVSA-T and upgraded TVSA FAs.
Sergey M. Dmitriyev +11 more
doaj +3 more sources
Temperature fields and heat transfer in free-packed fuel pin bundles cooled by heavy liquid metal
Nuclear Energy and Technology, 2016 The paper considers heat transfer and temperature fields in a free-packed fuel pin bundle cooled by a heavy liquid metal with different types of spacing.
A.V. Zhukov +3 more
doaj +1 more source
Numerical Simulation of Pressure Loss and Heat Transfer in Road Bundle Fuel Assembly with Spacer Grids [PDF]
مجله علوم و فنون هستهای, 2013 The spacer grids in nuclear fuel assembly are one of the equipments that affect the fluid flow distribution with the creation of turbulence and driven fluid flow in a sub-channel. In the present paper, the fuel bundle in the VVER-440 nuclear reactor that
M Asgari, M Talebi, M. R Abdi
doaj
Numerical Investigation on the Flow Characteristics in a 17 × 17 Full-Scale Fuel Assembly
Energies, 2020 In a previous study, several computational fluid dynamics (CFD) simulations of fuel assembly thermal-hydraulic problems were presented that contained fewer fuel rods, such as 3 × 3 and 5 × 5, due to limited computer capacity. However, a typical
Zihao Tian +6 more
doaj +1 more source
Fluids, 2021 In the dispersed flow film boiling regime (DFFB), which exists under post-LOCA (loss-of-coolant accident) conditions in pressurized water reactors (PWRs), there is a complex interplay between droplet dynamics and turbulence in the surrounding steam ...
Nadish Saini, Igor A. Bolotnov
doaj +1 more source
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
doaj +1 more source
Finite Element Analysis of the Blanking and Stamping Processes of Nuclear Fuel Spacer Grids
, 2015 Spacer grid assembly supporting the nuclear fuel rods is an important concern in the design of structural components of a Pressurized Water Reactor (PWR).
R. O. Santos +2 more
core +1 more source
General and robust covalently linked graphene oxide affinity grids for high-resolution cryo-EM [PDF]
, 2020 Affinity grids have great potential to facilitate rapid preparation of even quite impure samples in single-particle cryo-electron microscopy (EM).
Agard, David A +6 more
core +1 more source
FEBS Letters, EarlyView.Encapsulins are protein nanocompartments that play an important role in iron storage. In the Myxococcus xanthus encapsulin system, two cargo proteins called EncB and EncC contribute to iron mineralization. Here, we show that EncB and EncC generate iron‐containing minerals with distinct chemical compositions, suggesting that the composition of stored ...
Harry B. McDowell +2 more
wiley +1 more source
FEBS Letters, EarlyView.Mycobacterial 3‐methylcrotonyl‐CoA carboxylase uses a mobile biotin‐carrying domain to shuttle a carboxyl group between two catalytic sites, enabling carboxylation of 3‐methylcrotonyl‐CoA during leucine breakdown. Cryo‐electron microscopy captures the carrier at both sites and reveals an inward loop movement that may prevent futile rebinding to the ...
Ajit Yadav +2 more
wiley +1 more source