Sökning: "SODAR"
Visar resultat 1 - 5 av 9 uppsatser innehållade ordet SODAR.
1. Omdimensionering av instrument för mätning av vindhastighet
M1-uppsats, Mälardalens högskola/Akademin för innovation, design och teknikSammanfattning : The ever-growing demand for renewable energy leads to an increased need for innovation in the green energy sector. One of the available alternatives, wind power, have seen a global increase in usage with few signs of slowing down. To increase the efficiency of individual turbines, correct placement is crucial. LÄS MER
2. Detektion av fasta ekon vid vindmätning med SODAR
Kandidat-uppsats, Högskolan i Jönköping/JTH, Datateknik och informatikSammanfattning : Purpose – The purpose of this thesis was to facilitate the search for echoes caused by fixed objects, so called fixed echoes, when using SODAR-technique for wind measurements. Furthermore, it was investigated how fixed echoes in measurements can change based on different conditions such as: the angle of the sound beam towards the object causing the echo, the output frequency of the instrument, the air temperature and relative humidity. LÄS MER
3. Case Study of Uncertainties Connected to Long-term Correction of Wind Observations
Master-uppsats, Uppsala universitet/Luft-, vatten- och landskapsläraSammanfattning : Good knowledge about on-site wind climate is necessary in wind power assessments. Due to yearly and natural variability, short-term on-site measurements do not themselves give information about the wind climate. Long-term reference data can be used to correct the short-term observations to better correspond to a normal year. LÄS MER
4. Investigation of wind potential variation at three measurement sites based on atmospheric stability and power production
Master-uppsats, KTH/Kraft- och värmeteknologiSammanfattning : As tapping energy from wind expands rapidly worldwide, it is a common procedure to locate a practicable site to extract energy from abundant wind flow by building wind farms. Comprehensive understanding of wind resource at a site is important to perform the main activities say, wind flow modeling, wind turbines micro siting, annual energy yield calculation and cost of energy estimation. LÄS MER
5. Energieffektivisering av laddningssystemet till vindmätarutrustning
M1-uppsats, Sektionen för ekonomi och teknik (SET)Sammanfattning : Behovet av elektricitet blir allt viktigare i dagens samhälle. Runt om i världen finns än idag platser där tillgängligheten till det fasta elnätet är begränsad. Oftast är det platser som ligger avlägset och terrängen gör det ekonomiskt oförsvarbart att ansluta sig till det befintliga elnätet. LÄS MER