Results 21 to 30 of about 1,546,971 (249)

Mechanism Model of Critical Heat Flux in Bundle Based on High-precision Subchannel Code

open access: yesYuanzineng kexue jishu, 2023
Critical heat flux (CHF) is a crucial safety limit for PWR core design. Accurately predicting CHF in the core rod bundle channel can enhance the economy and safety of the reactor. Currently, the prediction of rod bundle CHF in engineering is mainly based
GUO Junliang;JIANG Li;GAO Kui;KONG Huanjun;GUI Miao;SHAN Jianqiang
doaj  

Heat transfer in rod bundle subchannels.

open access: yes, 1990
Presented in this study is an experimental investigation of heat transfer in a model of the 37-rod CANDU reactor bundle. Localized heat was provided by a narrow heated strip mounted on the central rod, which could be traversed within the duct and rotated
Guellouz, Mohamed Sadok.
core   +1 more source

Average Liquid Film Thickness of Annular Air-Water Two-Phase Flow in 8x8 Rod Bundle

open access: yes, 2018
In order to develop detailed model of the annular two-phase flow the average liquid film thickness is an important parameter. It can significantly affect the occurrence of dryout and post-dryout phenomenon on heater surfaces.
Ju, Peng   +5 more
core   +1 more source

Experimental Study on Liquid Lead-bismuth Heat Transfer Characteristic in Rod Bundle Channel of Hexagonal Assembly

open access: yesYuanzineng kexue jishu, 2023
To explore the flow and heat transfer characteristics of liquid lead-bismuth eutectic (LBE) in the hexagonal rod bundle assembly, an experiment on liquid lead-bismuth heat transfer was carried out at 0.250 kPa of operation pressure, 200-300 ℃ of inlet ...
LIU Jie;ZHANG Dalin;ZHOU Xingguang;LIN Chao;TIAN Wenxi;SU Guanghui;QIU Suizheng
doaj  

Natural convection heat transfer from vertical rod bundles in liquid sodium

open access: yesMechanical Engineering Journal, 2016
Natural convection heat transfer from vertical rod bundles in liquid sodium was numerically analyzed for three types of the bundle geometry (two parallel, equilateral triangle and equilateral square arrays).
Koichi HATA   +2 more
doaj   +1 more source

Air‐Pressure–Actuated Vibroacoustic Metamaterial With Tunable Bandgap: Design, Modeling, and Characterization

open access: yesAdvanced Engineering Materials, EarlyView.
This article presents the design, modeling, and characterization of air‐pressure–actuated programmable vibroacoustic metamaterials (PVAMM). The study focuses on leveraging air pressure to dynamically tune resonance frequencies for effective noise attenuation.
William Kaal   +2 more
wiley   +1 more source

Entropy‐Driven Design of Low‐Melting‐Point Alloys via Compositionally Complex Strategy

open access: yesAdvanced Engineering Materials, EarlyView.
Conventional low‐melting‐point alloys (LMPAs) are limited by a narrow compositional space and inherent property trade‐offs. This review presents an entropy‐driven design strategy that overcomes these limitations, ushering in a new class of low‐melting‐point compositionally complex alloys (LMCCAs).
Yinghui Shang   +6 more
wiley   +1 more source

Rapidly Solidified High‐Strength Invar 36 Prepared by Planar‐Flow Melt Spinning

open access: yesAdvanced Engineering Materials, EarlyView.
The Invar 36 alloy was rapidly solidified using the planar‐flow melt‐spinning technique. Ribbon samples with thicknesses ranging from 20 to 160 mm were produced. As the grain size of the ribbon decreased to sub‐micron levels, the hardness increased by more than 2 times.
Bekir Akgül, Mehmet Kul
wiley   +1 more source

Assessment of heat transfer correlations in the sub-channels of proposed rod bundle geometry for supercritical water reactor

open access: yesHeliyon, 2019
There are heat transfer correlations for heat transfer analysis in single tube geometries after several experimental and theoretical heat transfer studies in these single tube geometries.
Seth Kofi Debrah   +3 more
doaj   +1 more source

Microstructural, Mechanical, and Textural Evolution of Dissimilar Combination of Laser‐Welded Maraging Steel and 4340 Steel

open access: yesAdvanced Engineering Materials, EarlyView.
The present work reports the microstructural, mechanical, and texture evolution of a dissimilar combination laser‐welded maraging steel with 4340 steel. This is important for aerospace applications. The demand for dissimilar welding is growing rapidly with the requirement of efficient and durable joints.
Bharat Behl   +3 more
wiley   +1 more source

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