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Author:Hilli, Joonas
Title:Pientuulivoimaloiden tehontuotto
Power output of small-scale wind turbines
Publication type:Master's thesis
Publication year:2010
Pages:(12) + 91 s. + liitt. 2      Language:   fin
Department/School:Koneenrakennustekniikan laitos
Main subject:Koneensuunnitteluoppi   (Kon-41)
Supervisor:Juhanko, Jari
Instructor:
OEVS:
Electronic archive copy is available via Aalto Thesis Database.
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Location:P1 Ark Aalto  4885   | Archive
Keywords:small-scale wind turbines
air screw turbine
Darrieus turbine
Savonius turbine
power output
pientuulivoima
potkuri-roottori
Darrieus-roottori
Savonius-roottori
tehontuotto
Abstract (eng): The importance of wind energy is increasing as the non-renewable sources of energy are decreasing.
At the same time the importance of small-scale wind energy is increasing especially in locations that are not connected to local energy grid.
Small-scale wind energy is also a good way to reduce the need of the grid energy.

This research was made to examine the best small-scale wind turbine to produce some extra electricity in summer cottage in addition a solar panel.

Extensive research of generator and other wind turbines electrical components were marked off from thesis.

The research was made in the following way.
At first the formulas and methods that describe the power output of the air screw turbine, the Darrieus turbine and the Savonius turbine were composed.
After that a C-program was made that calculated the attributes of air screw turbine and Darrieus turbine as was described before.
Savonius rotors attributes were calculated with spreadsheet computation program.

The outcome of calculations was compared and the best small-scale wind turbine to the wind conditions of cottage was chosen.

Air screw wind turbine was the best small-scale wind turbine to the wind conditions of cottage.
During research it was noticed that different wind turbines have very different strengths and weaknesses.
Because of the differences every type has wind conditions where it is the best type.
Abstract (fin): Tuulivoimaloiden merkitys energian tuotannossa korostuu, kun uusiutumattomat energiavarat vähenevät.
Samalla myös pientuulivoimaloilla on asemansa varsinkin kohteissa jotka eivät kuulu kantaverkkoon ja toisaalta kantaverkkoon kuuluvien kohteiden ulkopuolisen energiantarpeen vähentämiseen.

Tämä tutkimus tehtiin kantaverkkoon kuulumattoman kesämökin pienimuotoisen sähköistämisen näkökulmasta tukemaan jo olemassa olevaa aurinkopaneelia.
Tarkistelun ulkopuolelle rajattiin tarkempi generaattorin ja muiden sähköisten komponenttien tarkastelu.

Työ suoritettiin kokoamalla potkuri-roottorin, Darrieus-roottorin ja Savonius-roottorin tehontuotannon laskemiseen tarvittavia kaavoja ja menetelmiä eri lähteistä.
Tämän jälkeen näiden pohjalta toteutettiin potkuri-roottorille ja Darrieus-roottorille C-ohjelma, joka laski kyseisten roottorityyppien tehontuoton.
Savonius-roottorin tehon- tuotto laskettiin taulukkolaskentaohjelmalla.

Laskelmissa saatuja tuloksia vertailtiin keskenään ja vertailujen pohjalta valittiin parhaiten mökin tuuliolosuhteisiin soveltuva pientuulivoimalatyyppi.

Parhaiten mökin tuuliolosuhteisiin soveltui potkurimallinen tuulivoimalatyyppi.
Tutkimuksessa havaittiin, että eri pientuulivoimalatyypeillä on löydettävissä hyvin erilaisia vahvuuksia ja heikkouksia.
Tästä johtuen on kaikille pientuulivoimalatyypeille löydettävissä oma käyttöpaikkansa.
ED:2010-10-18
INSSI record number: 41115
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