Now showing items 1-10 of 92
Shrouded wind turbine performance in yawed turbulent flow conditions
Wind turbines represent a growing energy source worldwide. In many cases, operating in turbulent and changing wind direction spots. In this work, we use a wind tunnel to analyse the effect of the turbulence in a wind ...
Concept for a Variable Vortex Wind TunnelConcepto para un túnel de viento de vórtice variable
(Universidad de Costa Rica, 2014)
PM10 emission efficiency for agricultural soils: Comparing a wind tunnel, a dust generator, and the open-air plot
The PM10 emission efficiency of soils has been determined through different methods. Although these methods imply important physical differences, their outputs have never been compared. In the present study the PM10 emission ...
PM10 emission, sandblasting efficiency and vertical entrainment during successive wind-erosion events: a wind-tunnel approach
A wind-tunnel experiment was carried out to measure saltation and PM10 (particulate matter with a mean aerodynamic diameter less than 10 μ μ m) emission during three successive wind-erosion events on three different ...
Wind tunnel study of plume dispersion with varying source emission configurations
The concentration fields in the proximities of a local gas emission source are experimentally analyzed in several combinations of wind incidences and source emissions. These conditions are determined by the plume buoyancy, ...
Elemental composition of wind-blown sediments from contrasting textured soils
(Elsevier Science, 2021-01)
Wind eroded sediment is sorted by height by both size and density. Less information is available about the elemental composition and enrichment ratios of these sediments. Because of that, the concentration of elements in ...
Relative soil water content as a factor for wind erodibility in soils with different texture and aggregation
The soil water content is one of the main factors influencing the beginning of soil particle movement by the wind. Although, some authors studied the effect of soil water content on threshold wind velocity and have defined ...
Safety design of a hybrid wind-solar energy system for rural remote areas in Costa Rica
Although several kinds of energy generation systems have been investigated and introduced in Costa Rica, none were made on systems that use more than one energy source. The present work proposes a safety design of a hybrid ...
Pressures on open canopy structures with parapets under wind loading