Fęrsluflokkur: Wind

Ofvišriš 14. mars - The Tempest on March 14

Enn eitt óvešriš geisaši į sunnanveršu landinu aš morgni 14. Mars 2015. Į Keflavķkurflugvelli var vindhrašinn um 30 m/sek kl. 10:00 og mį gera rįš fyrir aš hann hafi veriš svipašur hér į Seltjarnarnesi.

Tękifęriš var notaš og ósköpin hljóšrituš ķ stofunni į heimili okkar sem veit mót sušvestri. Notašur var Nagra Ares BB+ hljóšriti įsamt tveimur Rųde NT1-A hljóšnemum ķ AB-uppsetningu.

Hljóšritun hófst kl. 09:45.

Upprunalega hljóšritiš er 24 bita og 48 kķlóriš. Ekkert hefur veriš skoriš af lįgtķšni hljóšritsins, en hin djśpu hljóš, sem steinsteypt hśs gefa jafnan frį sér ķ ofvišri, heyršust vel og žvķ óešlilegt aš breyta žeim. Eindregiš er męlt meš góšum heyrnartólum.

 

 

In English

Yet another tempest raged in Southwest Iceland in the morning of March 14 ths year. The wind speed was about 30 m/sek.

A recording was made in our living room facing south-west.

A Nagra Ares BB+ was used together with 2 Rųde NT1-A microphones in an AB-setup. The original recording is in 48 kHz and 24 bits.

The lower frequencies have not been cut off. Therefore the deep rumbling sounds of the hous are easily heard. We heard them ourselves and therefor I thought it unnecessary to edit the sound.

The recording starts at 09:45.

Good headphones are recommended.

 


Skrįr tengdar žessari bloggfęrslu:

Raforkuvindmyllur - Wind Turbines

Hljóšiš ķ einni vindmyllu er notalegt. En hver verša įhrifin er 80 myllur verša settar upp? Ljósmynd: Elķn ĮrnadóttirNoršan viš Bśrfellsvirkjun eru tvęr vindmyllur. Žegar okkur bar aš garši 26. žessa mįnašar var vindur um 5-10 m/sek og raforkuframleišsla einungis um 75 kW. Nokkru noršar er önnur vindmylla, sem ekki var opin, en žar sem enginn var viš hana var hśn valin til hljóšritunar.

Um žaš leyti sem hljóšritun hófst jókst vindurinn nokkuš. Žaš mį heyra į hljóšritinu hvernig hljóšiš breytist meš mismunandi vindstyrk.

Eindregiš er męlt meš góšum heyrnartólum.


Į sķšu landsvirkjunar segir m.a.:

Vindmyllurnar eru hvor um sig 900 kW og samanlögš raforkuframleišsla žeirra er įęetluš um 5,4 GWst į įri. Žaš myndi nęgja til aš sjį um 1.200 heimilum fyrir rafmagni til daglegra nota.

Lokiš var viš uppsetningu vindmyllanna ķ desember 2012 og į nęstu misserum safnast upplżsingar um žaš hvort mögulegt sé aš breyta ķslenska rokinu ķ veršmęta aušlind. Rannsóknirnar snśast ekki sķst um rekstur vindmylla viš sérķslenskar ašstęšur, ķsingu, skafrenning, ösku- og sandfok. Ef vel gengur er markmišiš aš vindorkuframleišsla verši ķ framtķšinni mikilvęg višbót viš framleišslu raforku meš vatnsafli og jaršvarma.

Vindmyllurnar tvęr į Hafinu eru framleiddar af žżska fyrirtękinu Enercon, sem sérhęfir sig ķ framleišslu vindmylla til nota į landi. Um 60% vindmylla ķ Žżskalandi eru frį Enercon og um 7% vindmylla ķ heiminum.

Turninn er 55 metra hįr og hver spaši 22 metrar į lengd. Žegar spašarnir eru ķ efstu stöšu er heildarhęš myllunnar 77 metrar. Frekari upplżsingar eru į

http://www.landsvirkjun.is/rannsoknirogthroun/throunarverkefni/vindmyllur


In english


Will the wind finally do some good?

In December, Landsvirkjun erected two wind turbines, in an area known as Hafiš, within the construction area of Bśrfell Power Station, in the south of Iceland. The turbines have a total of 2 MW of installed power. The project is part of Landsvirkjun’s research and development project on the advantageous of wind power in Iceland. There are a number of areas in Iceland that show great potential for the successful utilisation of wind energy.

The wind turbines each have a 900 kW capacity and together their generating capacity could be up to 5.4 GWh per year. The masts is 55 metres heigh and each spade measures 22 metres in length. When the spades are at their highest position the unit is 77 metres of height. Wind turbines developed for further energy production will in all likelihood be larger than the most powerful turbines presently operating in Iceland today, reaching 7.5MW.


When we were there on July 26 the wind was only 5-10 mYsec and the average power only about 75kW for each turbine. We went to the turbine further north as there were no tourists. There we captured the sound. It can be heard during the recording that the sound of the spades changes according to the wind.

Good headphones recommended.

For further information, see http://www.landsvirkjun.com/ResearchDevelopment/Research/WindPower/