hat aber auch Nordex-spezifische Gründe...das kommt o.g. noch dazu...die Energiewende war von den Klattens und Nordex, sicher ja so nicht eingeplant...helfen tut sie sicher trotzdem.)
mal eine Fortsetzung von #7365 The Russian WE market; 15 GW by 2020, = Sweden = Canada (Projekte Nordex Schweden: http://www.wallstreet-online.de/diskussion/...giewende-nach-fukushima ...ff) Wind Turbine Production losses in Cold Climate, Department: Wind Energy, Gotland University Spring semester, 2011
2.2 Icing in Sweden
.... The low temperature and solar insolation in northern Sweden during the winter can prevent iced up structures to deice naturally, hence iced up structures can stay iced for very long time (T. Laakso 2003).
2.3 Icing mitigation systems for wind turbine applications
Most turbine manufacturers provide a cold climate package which, among other things, generally includes heated wind sensors. Systems for blade heating are also being developed and there are a few commercially available options. Enercon uses a system which circulates hot air inside the blades; WinWind uses a system in which carbon fiber elements, mounted near the surface of the blades, are electrically heated
Anm. #7365: S.16 "periphere" Systeme – was die Enteisung funktionieren lässt", Skellefteå Kraft
Figure 1: Icing map of Scandinavia with estimated number of icing days (Ronsten 2008)
http://www.hgo.se/wpmaster/2612-hgo/version/...Revision%20%283%29.pdf
und weiter:
-practices indicate that only systems which heat the surfaces of the blades are effective in heavy icing conditions (T. Laakso 2003).
-Some wind assessment companies have, and are developing models that can predict the severity of icing at a selected site. But until now the most common method is to study how the anemometers on the met mast at the sites are affected by icing, which however seems to underestimate the problem (Liléo, O2 2011)
4.2 Production losses (S.23)
The calculated annual loss varies from 19.0% at site B2 to a negative loss of -4.8% for farm C1 indicating that the actual production during the winter is higher than the expected production. The availability varies between 92.9 to 98.5%, see Table 5 below.
Also of notable importance is that farm B2, which has the highest calculated loss (19.0%), is the only wind farm in this investigation equipped with a blade heating system.
Was zur Hölle hat dies mit Nordex zu tun? Na, wer is denn aktuell der Lieferant der Anlagen mit den "peripheren" Systeme – was die Enteisung funktionieren lässt" von Skellefteå Kraft? (Anm.: der alte war ja: For the Uljabuouda wind park in Sweden WinWinD’s partner is Dynawind AB.
http://www.winwind.com/en/media/news/...-parks-to-estonia-and-sweden/ ) Anläggningar och projekt von Skellefteå Kraft: http://www.skekraft.se/default.aspx?di=3584
- Uljabuouda (Dynawind, Finland, haben wohl aktuell Probleme)
-Jokkmokksliden (Nordex)
- Storliden (Nordex)
- Bureå (2003)
- Blaiken (Nordex)
Blaiken, Schwedens grösster onshore Windpark, warum Nordex? (werden ja mal 225 MW #7365)
Die erfolgreiche Entwicklung des Anti-Icing-Systems war ein wesentliches Kriterium für den Auftrag. Ein integriertes Heizsystem beugt jetzt der Vereisung vor und maximiert somit die Ertragsleistung. Teknik och funktion
"Integrerade element i rotorblad" (integrierte Elemente im Rotorblatt)
"…" ...:)
Quelle google: "NORDEX SVERIGE AB Östersund 25 maj 2011"
für PDF: NAME OF THE EVENT TITLE OF THE PRESENTATION
windpower.midscand.com/download.asp?id...NAME=11...Nordex..
(hierzu ist wohl auch Beitrag Nr.42892 interessant: http://www.wallstreet-online.de/diskussion/...ordex-buy-first-berlin) o.g. findet sich da http://www.wallstreet-online.de/diskussion/...giewende-nach-fukushima achso und falls jemand auf die Idee kommt: "Also of notable importance is that farm B2, which has the highest calculated loss (19.0%), is the only wind farm in this investigation equipped with a blade heating system." bei o.g. muss es sich um Storrun/Nordex handeln...so muss ich Ihn entäuschen da hat Nordex eine andere Baustelle offen: 4. Nordex/LM/Dong Energy - Hydrophobic coatings and control system development to avoid ice build up. http://windren.se/WW2011/66b_WindREN_Ronsten_IEA_Task19_Sweden.pdf Only two manufacturers, Enercon and WinWind, have so far, shown an official intention to address this issue. http://www.winterwind2011.se/pdf/winterwind2011boa.pdf wer ist also wahrscheinlich gemeint? Enercon uses a system which circulates hot air inside the blades (s.o.) Aber alles nur meine Meinung - keine Kaufempfehlung |
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