<p>This thesis assignment at C-level is focused on calculation models and prediction methods</p><p>whish can be used in the stage we call ”prospecting” of possible windmill locations. The</p><p>location is southeast of Halmstad at the Farm “Stjernarpsgods”. The rapport has two main</p><p>areas directed towards this task. The areas are a study of literature and a description of</p><p>methods used in the project. The “prospect” project description is aimed towards calculations</p><p>of the energy carried by the wind and transformed to electricity by windmills.</p><p>With a relatively simple algorithm of mean wind speed data from the MIUU - model, Cp and</p><p>rotor area from a turbine with 90 m diameter, the calculated production is 6 638 MWh. When</p><p>the same mean wind speed is used in the second type of calculation, Weibull distribution</p><p>(with a calculated A and the form value c set to 2) and the power curve for Vestas V90 taken</p><p>from WindPro, the production was 6 873 MWh. The third alternative uses collected data from</p><p>a local mast at a distance of 18km´s from the site. This data is normalized and used to</p><p>calculate with Weibull distribution the production to 7 443 MWh. Finally a reference</p><p>calculation is done using WindPro and the official SMHI wind data from Halmstad and</p><p>Ringhals. In this case the production was calculated to 5 725 MWh. The difference is a 30</p><p>procent increase from the lowest to the highest production value. Comparing calculations at</p><p>different heights shows that the difference in result is very small at a height of 50 meters, but</p><p>increase with increasing height.</p><p>The Pay-off time was calculated with 3 different energy prediction models. The result was</p><p>Pay-off times off 7, 5 – 9 – 11, 4 years, with the price of electricity at 0, 60 Sek/kWh.</p><p>The environmental consequence analysis which is presented in appendix 1 is mainly focused</p><p>on landscape impact, whish in this case means, that the windmills are clearly visible from</p><p>west and southwest.</p><p>The conclusion is that the value of wind measurements and understanding of sources of error</p><p>is important, and that no investment should be done without proper wind measurements on</p><p>site.</p>
| Identifer | oai:union.ndltd.org:UPSALLA/oai:DiVA.org:hh-1685 |
| Date | January 2008 |
| Creators | Osbeck, Fredrik, Markovic, Slobodan |
| Publisher | Halmstad University, School of Business and Engineering (SET), Halmstad University, School of Business and Engineering (SET), Högskolan i Halmstad/Sektionen för Ekonomi och Teknik (SET) |
| Source Sets | DiVA Archive at Upsalla University |
| Language | Swedish |
| Detected Language | English |
| Type | Student thesis, text |
Page generated in 0.0024 seconds