Search results for "High load"

showing 4 items of 4 documents

Influence of LV neutral grounding on global earthing systems

2015

International Standards define a Global Earthing System as an earthing net created interconnecting local Earthing Systems (generally through the shield of MV cables and/or bare buried conductors). In Italy, the regulatory authority for electricity and gas requires distributors to guarantee the electrical continuity of LV neutral conductor. This requirement has led to the standard practice of realizing “reinforcement groundings” along the LV neutral conductor path and at users’ delivery cabinet. Moreover, in urban high-load scenarios (prime candidates to be part of a Global Earthing System), it is common that LV distribution scheme creates, through neutral conductors, an effective connection…

Engineeringelectrical and electronic engineeringmaxwell subareas method020209 energyEnergy Engineering and Power TechnologyGround and neutralindustrial and manufacturing engineering02 engineering and technologyRegulatory authorityGlobal earthing system (GES) global grounding system (GGS) ground potential LV neutral conductor maxwell subareas method.control and systems engineeringlv neutral conductorShield0202 electrical engineering electronic engineering information engineeringglobal earthing systemmaxwell sub-areas methodGlobal earthing system (GES)Electrical conductorglobal grounding system (GGS)Groundbusiness.industryGES; GGS; global earthing system; global grounding system; ground potential; lv neutral conductor; maxwell sub-areas method; control and systems engineering; industrial and manufacturing engineering; electrical and electronic engineeringElectrical engineeringGlobal Earting SystemGESglobal grounding systemground potentialEarthing systemGGSGlobal earthing system (GES); global grounding system (GGS); ground potential; LV neutral conductor; maxwell subareas method; Control and Systems Engineering; Industrial and Manufacturing Engineering; Electrical and Electronic EngineeringSettore ING-IND/33 - Sistemi Elettrici Per L'EnergiaSettore ING-IND/31 - ElettrotecnicaGlobal Earting System; GES; Global Grounding System; GGS; Ground potential; Maxwell Sub-areas Method; LV neutral conductorHigh loadElectricityGES; GGS; Global earting system; global grounding system; ground potential; lv neutral conductor; maxwell sub-areas method; electrical and electronic engineering; energy engineering and power technologybusiness
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D2/H2 adsorption selectivity on FAU zeolites at 77.4 K: Influence of Si/Al ratio and cationic composition

2018

Abstract Equilibrium D2/H2 adsorption selectivity was determined at 77.4 K below 1000 hPa for a series of FAU type zeolites X exchanged with different cations (Li+, Na+, K+, Mg2+, Ca2+, Ba2+ and Mn2+). In addition NaY, DAY (dealuminated Y) and pure silica CHA and MFI zeolites were studied. Two experimental approaches were used to determine the D2/H2 adsorption selectivity: direct determination at the thermodynamic equilibrium from manometric coadsorption experiments and calculations by Ideal Adsorbed Solution Theory (IAST) from single gas adsorption isotherms. While these two approaches are not in quantitative agreement, they reveal similar trends. At low loading (  MnX > LiX > CaX ≈ NaX > …

LangmuirThermodynamic equilibriumChemistryCationic polymerizationHigh loading02 engineering and technologyGeneral Chemistry010402 general chemistry021001 nanoscience & nanotechnologyCondensed Matter Physics01 natural sciences7. Clean energy0104 chemical sciencesAdsorption selectivity[CHIM.THEO]Chemical Sciences/Theoretical and/or physical chemistryAdsorption13. Climate actionMechanics of MaterialsPhysical chemistry[CHIM]Chemical SciencesGeneral Materials ScienceComposition (visual arts)0210 nano-technologySelectivityComputingMilieux_MISCELLANEOUS
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Oil whip-induced wear in journal bearings

2014

Published version of an article in the journal: International Journal of Advanced Manufacturing Technology. Also available from the publisher at: http://dx.doi.org/10.1007/s00170-014-5805-8 This paper investigates the effect of oil whirl and oil whip in fluid film radial bearings due to possible metallic contact. The degree of metallic contact and thereby wear and tear between rotating shafts and bearing bushes is assessed by measuring electric currents through the oil film. The current as well as the voltage varied in accordance with the contact ratio between the shaft and bush in the fluid film radial bearing. The gauge signal thus indicates the degree of metallic contact based on the thi…

Materials scienceBearing (mechanical)Wear and tearMechanical Engineeringoil whipComputer Science Applications1707 Computer Vision and Pattern RecognitionIndustrial and Manufacturing Engineeringoil whirlComputer Science Applicationslaw.inventionFluid film radial bearings; Oil whip; Oil whirl; Industrial and Manufacturing Engineering; Control and Systems Engineering; Computer Science Applications1707 Computer Vision and Pattern Recognition; Software; Mechanical EngineeringControl and Systems EngineeringlawOil filmfluid film radial bearingsHigh loadGeotechnical engineeringVDP::Technology: 500::Materials science and engineering: 520Current (fluid)Whip (tree)SoftwareVoltageThe International Journal of Advanced Manufacturing Technology
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New force field for GCMC simulations of D 2 /H 2 quantum sieving in pure silica zeolites

2020

International audience; We report a study on adsorption and coadsorption of H2 and D2 in FAU, MFI and CHA pure silica zeolites having different pore sizes and shapes. Adsorption capacities, selectivities, enthalpies and entropies are determined by combining experiments and GCMC simulations. We show that the force fields available in the literature cannot predict the adsorption equilibria below 77 K with sufficient accuracy. Here we propose a new force field adjusted by using our experimental data obtained for the pure silica MFI zeolite at 65 K and 77 K. With this new force field, it is possible to predict the adsorption and coadsorption equilibria on the three zeolite structures in a tempe…

Pore sizeMaterials scienceGeneral Physics and AstronomyHigh loadingThermodynamics02 engineering and technologyAtmospheric temperature range010402 general chemistry021001 nanoscience & nanotechnology01 natural sciencesForce field (chemistry)0104 chemical sciences[CHIM.THEO]Chemical Sciences/Theoretical and/or physical chemistryAdsorption[PHYS.PHYS.PHYS-CHEM-PH]Physics [physics]/Physics [physics]/Chemical Physics [physics.chem-ph]Physical and Theoretical ChemistryMolecular rearrangement0210 nano-technologyZeoliteQuantum
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