Search results for "Density of air"

showing 2 items of 2 documents

Effect of variation of the vertical air density profile on the relative optical air mass

1967

A simple method is developed which allows for estimating the deviations of the relative optical air mass for a given vertical air density profile from the relative optical air mass for the ARDC Model Atmosphere, 1959 which serves as standard. In case of the mean profiles given byQuiroz [3] for middle latitudes, summer; middle latitudes, winter; arctic summer; and arctic winter the air mass deviations turn out to be small.

Atmospheric ScienceGeneral MedicineAtmospheric sciencesPhysics::GeophysicsAtmosphereArcticClimatologyMiddle latitudesPhysics::Space PhysicsEnvironmental scienceDensity of airVariation (astronomy)Physics::Atmospheric and Oceanic PhysicsAir massEarth-Surface ProcessesArchiv für Meteorologie, Geophysik und Bioklimatologie Serie B
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Effects of the air density value on a wind generator electricity production capability

2016

The paper main issue is the evaluation of the influence of the air density value on the electricity production capability of a wind generator. Two different density air mathematical models, where the density has not a constant value, are here taken into account and compared in terms of reliability, accuracy and computational burden. Evaluations are carried out thanks to a horizontal axis wind generator full model built by the Authors in Matlab/Simulink environment. Simulation results are compared with real data.

air densityEngineering020209 energyEnergy Engineering and Power Technology02 engineering and technologyAtmospheric modelreal datSettore ING-IND/32 - Convertitori Macchine E Azionamenti Elettrici01 natural sciencesWind speedAutomotive engineering010309 opticsWind profile power law0103 physical sciences0202 electrical engineering electronic engineering information engineeringwindDensity of airElectrical and Electronic EngineeringMATLABPhysics::Atmospheric and Oceanic PhysicsSimulationcomputer.programming_languageWind powerSettore ING-IND/11 - Fisica Tecnica AmbientaleMathematical modelbusiness.industryRenewable Energy Sustainability and the EnvironmentsimulationElectricity generationrotor power coefficientbusinesscomputer
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