Results 21 to 30 of about 99,114 (312)

Effect of purge air on rotor endwall heat transfer of an axial turbine

open access: yesJournal 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

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

Low background techniques for the Borexino nylon vessels [PDF]

open access: yes, 2004
Borexino is an organic liquid scintillator underground detector for low energy solar neutrinos. The experiment has to satisfy extremely stringent low background requirements.
Pocar, A.
core   +3 more sources

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

open access: yesNanomaterials, 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

A simple device in a horizontal TG analyzer to prevent mixing of corrosive and protective gases [PDF]

open access: yes, 1982
A ceramic cylinder has been developed as an accessory to a standard DuPont 951 Thermogravimetric Analyzer to study weight changes of solid samples in corrosive atmospheres. This device has two purposes to be fulfilled at higher temperatures (≤ 9OO°C) and
Longe, T.A.   +2 more
core   +3 more sources

Particle Image Velocimetry (PIV) Investigation of Blade and Purge Flow Impacts on Inter-Stage Flow Field in a Research Turbine

open access: yesEnergies, 2019
Flow field in the inter-stage is of great importance to jet engine turbine performance and efficiency. Investigation of flow fields is limited by the complex geometrical structure.
Zhenyang Zhang, Hongwei Ma
doaj   +1 more source

Real-time monitoring of proton exchange membrane fuel cell stack failure [PDF]

open access: yes, 2016
Uneven pressure drops in a 75-cell 9.5-kWe proton exchange membrane fuel cell stack with a U-shaped flow configuration have been shown to cause localised flooding.
Brandon, NP   +5 more
core   +2 more sources

Extraction of anthocyanins and total phenolic compounds from açai (euterpe oleracea mart.) using an experimental design methodology. part 1: Pressurized liquid extraction [PDF]

open access: yes, 2020
Currently, açai is one of the most important fruits present in the world. Several studies have demonstrated its high content in phenolic compounds and anthocyanins.
Aliaño González, María José   +7 more
core   +1 more source

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

open access: yesHydrogen, 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
doaj   +1 more source

Methodology Of Experimental Investigations Of Valve Operation [PDF]

open access: yes, 2019
Tightness, as well as the reliability of the valve plate, is a complex property of the effective operation of compressor cylinders of the first stage and, in general, gas-engine reciprocating compressors.
Seyidahmadov, N. S. (Natig)
core   +3 more sources

Home - About - Disclaimer - Privacy