Results 21 to 30 of about 16,280 (262)
Numerical Study of Purge and Secondary Flows in a Low-Pressure Turbine [PDF]
Journal 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]
E3S 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
Effect of purge air on rotor endwall heat transfer of an axial turbine
Journal of the Global Power and Propulsion Society, 2017 In order to gain in cycle efficiency, turbine inlet temperatures tend to rise, posing the challenge for designers to cool components more effectively. Purge flow injection through the rim seal is regularly used in gas turbines to limit the ingestion of ...
Sebastiano Lazzi Gazzini +6 more
doaj +1 more source
Energies, 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
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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 +3 more
doaj +1 more source
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 +1 more
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Novel high-pressure turbine purge control features for increased stage efficiency
Journal of the Global Power and Propulsion Society, 2017 Rim seals throttle flow and have shown to impact the aerodynamic performance of gas turbines. The results of an experimental investigation of a rim seal exit geometry variation and its impact on the high-pressure turbine flow field are presented.
Rainer Schädler +5 more
doaj +1 more source
Errors in Flow and Pressure Related to the Arterial Filter Purge Line
The Journal of ExtraCorporeal Technology, 1998 The purge line is a necessary component on arterial filters, although its presence may affect the amount of flow reaching the patient as well as the pump outlet pressure in the extracorporeal circuit. In-vitro and clinical studies conducted to investigate these effects with a commonly used purge line showed that at flows less than 1.5 L/min, rates for ...
K, Lee-Sensiba +9 more
openaire +2 more sources
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
Advanced Functional Materials, EarlyView.Sulfur‐doped graphitized carbon nanofibers act as adaptive catalyst–support platforms, enabling dynamic sulfur‐mediated reconstruction and strong metal–support interactions. This unique behavior enhances catalyst stability and controls reaction pathways, achieving highly selective urea oxidation (∼92% N2) coupled with efficient hydrogen evolution ...
Melanie Guillén‐Soler +4 more
wiley +1 more source