Results 31 to 40 of about 17,617 (289)

Effect of Voidage on the Collapsing Bed Dynamics of Fine Particles: A Detailed Region-Wise Study

Nanomaterials, 2022
Bed collapse experiments provide vital information about fluidized bed hydrodynamics. In this study, the region-wise bed collapse dynamics of glass beads, titania (TiO2), and hydrophilic nanosilica (SiO2) particles with widely different voidages (ε) of 0.
Syed Sadiq Ali, Agus Arsad, Kenneth L. Roberts, Mohammad Asif   +3 more
doaj   +1 more source

A Computational Fluid Dynamics Analysis of Hydrogen Leakage and Nitrogen Purging of a Solid Oxide Fuel Cell Stack

Hydrogen, 2023
A computational study of the nitrogen purging of a solid oxide fuel cell stack enclosed in a hot box is presented. The stack operates on ammonia as a fuel, and in the case of a hydrogen leakage, the entire compartment is immediately purged with nitrogen ...
Rasmus Dockweiler Sørensen, Torsten Berning   +1 more
doaj   +1 more source

Computational Predictions of Velocity Ratio and Ejection Angle on Purge Flow in a Linear Turbine Cascade with Upstream Disturbance

Journal of Applied Fluid Mechanics, 2020
Secondary air bled from the compressor which bypasses the combustion chamber is used to seal the turbine components from incoming hot gas. Interaction of this secondary air or purge flow with the mainstream can alter the flow characteristics of turbine ...
S. Babu, S. Anish
doaj  

Delineating loss sources within a linear cascade with upstream cavity and purge flow [PDF]

, 2019
Purge air is injected in cavities at hub of axial turbines to prevent hot mainstream gas ingestion into inter-stage gaps. This process induces additional losses for the turbine due to an interaction between purge and mainstream flow.
Boussuge, Jean-François, Gourdain, Nicolas, Eric, Lippinois, Fiore, Maxime   +3 more
core   +1 more source

Desenvolvimento de método para a determinação de trihalometanos em águas de Florianópolis - SC usando Purge & Trap e cromatografia gasosa [PDF]

, 2005
Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro de Ciências Físicas e Matemáticas. Programa de Pós-Graduação em Química.Neste trabalho foi determinada à quantidade de trihalometanos (THM) em diversos tipos de água da região de ...
Budziak, Dilma
core  

Unsteady effects due to rotor purge flow variations in a dual-spool turbine setup

, 2020
The paper discusses the impact of rotor purge flows on the unsteady flow field downstream of a two-stage, two-spool test turbine. The analyzed setup is representative of the second high-pressure turbine (HPT) and the first low-pressure turbine (LPT ...
Wiesinger L., Peters A., Merli F., Sterzinger P. Z., Heitmeir F., Dellacasagrande M., Gottlich E.   +6 more
core   +1 more source

Additive Manufacturing of Continuous Fibre Reinforced Composites: Process, Characterisation, Modelling, and Sustainability

Advanced Engineering Materials, EarlyView.
Additive manufacturing provides precise control over the placement of continuous fibres within polymer matrices, enabling customised mechanical performance in composite components. This article explores processing strategies, mechanical testing, and modelling approaches for additive manufactured continuous fibre‐reinforced composites.
Cherian Thomas, Amir Hosein Sakhaei
wiley   +1 more source

A percolation theory-based approach for analyzing fluid flow mechanism in blanket pebble beds

Nuclear Materials and Energy
Blanket pebble beds consist of numerous small-diameter particles, posing significant challenges for traditional simulation methods in terms of modeling accuracy and computational efficiency.
Ziyang Wang, Xuetao Cui, Jian Wang, Mingzhun Lei, Yuntao Song   +4 more
doaj   +1 more source

The Aero-Thermal Impact of Rim Seal Purge Flow in Axial Turbines [PDF]

, 2023
The area between the stationary and rotating hub side endwall segments in axial turbines is featured with a specifically shaped annular clearance, termed as the rim seal.
Ostrowski, Tom
core   +1 more source

Direct Metal Deposition of Graphene–Ti28Nb35.4Zr Matrix Composites With Enhanced Mechanical, Corrosion, and Biocompatibility Properties for Bone Implants

Advanced Engineering Materials, EarlyView.
Graphene nanoplatelet (0.1 wt.%) reinforcement significantly enhances the performance of β Ti‐28Nb‐35.4Zr alloy. Grain refinement, reduced water contact angle, and improved surface characteristics promote osteoblast adhesion and complete surface coverage after 7 days.
Khurram Munir, Jixing Lin, Yuncang Li, Li Zhu, Paul F. A. Wright, Cuie Wen   +5 more
wiley   +1 more source