Results 21 to 30 of about 17,617 (289)

The Influence of Simulated Purge Flow on the Secondary Flow of a Low-Speed Turbine Cascade [PDF]

open access: yes, 2018
The present thesis documents experimental measurements of a low-speed linear turbine cascade. The overall objective of the thesis was to enhance the understanding of turbine near endwall flows, termed secondary flows. Of particular interest were the loss
MacIsaac, Gordon David
openaire   +2 more sources

Effect of Ingress on Flow and Heat Transfer Upstream and Downstream of a Rotating Turbine Disc

open access: yesAerospace, 2019
Ingress is the penetration of a hot mainstream gas in a turbine annulus through the rim seal into the wheel-space between the rotating turbine disc (the rotor) and the adjacent stationary casing (the stator).
Hui Tang   +6 more
doaj   +1 more source

Humidity Control for Front Opening Unified Pod after Opening Its Door in a Mini-Environment

open access: yesApplied Sciences, 2018
Wafers are usually placed in a front opening unified pod (FOUP) while waiting in the line of manufacturing processes; a conventional way for preventing (or removing) contamination is to purge an FOUP with a gas, so as to maintain the cleanliness level ...
Shih-Cheng Hu   +3 more
doaj   +1 more source

Development of a Component-Level Hydrogen Transport Model with OpenFOAM and Application to Tritium Transport Inside a DEMO HCPB Breeder

open access: yesApplied Sciences, 2021
This work continues the development of a numerical model to simulate transient tritium transport on the breeder zone (BZ) level for the EU helium-cooled pebble bed (HCPB) concept for DEMO.
Volker Pasler   +5 more
doaj   +1 more source

Impact of Vacuum-Assisted Venous Drainage on Forward Flow in Simulated Pediatric Cardiopulmonary Bypass Circuits Utilizing a Centrifugal Arterial Pump Head [PDF]

open access: yesBrazilian Journal of Cardiovascular Surgery, 2020
Objective: To analyze the impact of vacuum-assisted venous drainage (VAVD) on arterial pump flow in a simulated pediatric cardiopulmonary bypass circuit utilizing a centrifugal pump (CP) with an external arterial filter.
Daniel Peres Guimarães   +10 more
doaj   +2 more sources

Pricing and Unresponsive Flows Purging for Global Rate Enhancement

open access: yesJournal of Electrical and Computer Engineering, 2010
Pricing‐based Active Queue Management (AQM), such as Random Exponential Marking (REM), outperforms other probabilistic counterpart techniques, like Random Early Detection (RED), in terms of both high utilization and negligible loss and delay. However, the pricing‐based protocols do not take account of unresponsive flows that can significantly alter the
Ghulam Abbas 0002   +3 more
openaire   +2 more sources

Aerodynamics and Sealing Performance of the Downstream Hub Rim Seal in a High-Pressure Turbine Stage

open access: yesInternational Journal of Turbomachinery, Propulsion and Power, 2023
The purpose of the paper is to characterize the aerodynamic behavior of a rotor-downstream hub cavity rim seal in a high-pressure turbine (HPT) stage.
Filippo Merli   +4 more
doaj   +1 more source

Numerical Study of Purge and Secondary Flows in a Low-Pressure Turbine [PDF]

open access: yesJournal of Turbomachinery, 2016
The secondary flow increases the loss and changes the flow incidence in the downstream blade row. To prevent hot gases from entering disk cavities, purge flows are injected into the mainstream in a real aero-engine. The interaction between purge flows and the mainstream usually induces aerodynamic losses.
Cui, J, Tucker, PG
openaire   +2 more sources

Preliminary torrefaction of oil palm empty fruit bunch pellets [PDF]

open access: yesE3S Web of Conferences, 2019
Torrefaction of pelletised oil palm empty fruit bunches (OPEFBs) is a promising pretreatment technique for improving its solid biofuel properties and energy recovery potential.
Nyakuma Bemgba B.   +7 more
doaj   +1 more source

Performance Improvement of Condensation Reduction and Removal in Heat Recovery Ventilators Using Purge Methods

open access: yesEnergies, 2020
In this study, several purge and ventilation methods are proposed to reduce and remove condensation in a heat recovery ventilator for commercial and household buildings. The effects of the airflow rate, duration of ventilation, purge interval, and return
Kwiyoung Park   +3 more
doaj   +1 more source

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