Essays about: "wind measurement"

Showing result 11 - 15 of 118 essays containing the words wind measurement.

1. 11. Turbine Performance Analysis in Wake and Wake-Free Conditions Using Nacelle Mounted Lidar at a Wind Farm in Sweden

   University essay from Uppsala universitet/Institutionen för geovetenskaper

   Author : Izabela Fijołek; [2022]
   Keywords : Sweden; wind power; onshore; lidar; wake effect; performance analysis; power curve;

   Abstract : The need for optimizing wind farms’ production and maximizing the profitability of projects necessitates power performance analysis. Nowadays, the use of remote sensing devices for this purpose becomes more and more popular due to many advantages this technology has over traditional met masts. READ MORE

3. 12. Implementing spatial variance in the rate of photolytic breakdown of NO2 in urban street canyons

   University essay from Lunds universitet/Institutionen för energivetenskaper

   Author : Fabian Friberg; [2022]
   Keywords : cfd; computational fluid dynamics; NOx; street canyon; NO2; NO; O3; photolysis; OpenFOAM; Physics and Astronomy;

   Abstract : In this study a module for calculating the solar exposure of individual fluid cells was developed to more accurately represent the effect of photolysis on the pollutant dispersion in an urban street canyon. The module was tested and validated on 12 different cases, each with a different geographical location, time of year and/or time of day. READ MORE

4. 13. Inverse Atmospheric Dispersion Modeling in Complex Geometries

   University essay from Umeå universitet/Institutionen för fysik

   Author : Charlie Pelland; [2022]
   Keywords : atmospheric dispersion modeling; dispersion modeling; invers dispersion modeling; atmospheric dispersion; invers atmospheric dispersion; CFD; computational fluid dynamics; radioactive release; openfoam; CRBN; dry deposition; dry deposition velocity; scavenging effect; wet deposition; optimization model; Reynolds Averaged Navier-Stokes; adjoint mode; time-dependent rain simulation; time-dependent rain; time dependent rain simulation; time dependent rain;

   Abstract : In the event of a radioactive release in an urban environment the consequent response mustbe swift and precise. As soon as first responders have correct information, they can make anaccurate risk assessment. However, if the position, release rate and time of the radioactiverelease is unknown it is hard to know how the pollutant will spread. READ MORE

5. 14. Wind Farm Modeling in DIgSILENT PowerFactory® and Load Flow Analysis of Internal Collector Network

   University essay from Uppsala universitet/Institutionen för geovetenskaper

   Author : Lakshitha Daham Makewita; [2022]
   Keywords : Wind Farm Internal Collector Network; Active Power Loss; Cable Loading;

   Abstract : The purpose of this study is to model an operational wind farm in DIgSILENT PowerFactory® using manufactures specifications and investigate the active power energy losses. The model is tested with the operational recorded data from the wind farm and is validated. READ MORE

6. 15. Shallow near-surface lapse rates and their connection to glacier meteorology on Storglaciären and Rabots glaciär, Northern Sweden

   University essay from Stockholms universitet/Institutionen för naturgeografi

   Author : Moon Taveirne; [2022]
   Keywords : Temperature lapse rate; glacier meteorology; near-­surface lapse rate; ablation gradient;

   Abstract : Glacier melt is strongly impacted by climate and meteorology. Temperature lapse rates are used to model glacier melt, and the accuracy of the spatial distribution of modelled melt can be impacted by the lapse rate used in modelling. Additionally, the observed spatial distribution of melt is highly temporally variable. READ MORE