Theory and practice of a horizontal-axis flexible sail type wind-turbine behaviour
Başlık:
Theory and practice of a horizontal-axis flexible sail type wind-turbine behaviour
Yazar:
Arithoppah, Sateeam, author.
ISBN:
9780355893809
Yazar Ek Girişi:
Fiziksel Tanımlama:
1 electronic resource (356 pages)
Genel Not:
Source: Dissertation Abstracts International, Volume: 76-08C.
Özet:
A sail of 0.3m x 0.28m, with 1% slack, was placed in the test section of a wind tunnel. Both surface visualization and pressure distribution tests were undertaken with the sail at various angles of attack, c , relative to the wind, for a constant wind speed of 5 m/s. As the angle of incidence was increased from 2.5 , it was found that the flow round the sail behaved in a smooth manner until c reached 15. Beyond 15 , flow separation became dominant and for higher angles of attack (i. e. c >25) the sail flapped violently. It was also found that the lift increased linearly with and the sail stalled at an angle of incidence of c =15. At zero angle of attack the lift was found to be negative. The performance of a fully-augmented flexible sail-type wind turbine has been investigated. The augmentation devices (i. e. centre-body and tip-fins) used resulted in an increase of about 60% over the unaugmented wind turbine. Tests were carried out so as to determine the pumping characteristics of the wind turbine when it was coupled to a commercially-available peristaltic pump. Aerodynamic characteristics of the interacting sails, together with the effectivenesses of the above mentioned augmenting devices, were investigated using a flow-visualization technique and this was done at the optimal operating wind-speed of 5 m/s. Tests on the wind-turbine/pump combination show that the cut-in and cut-out wind speeds for the pump to function were 3.71 and 11 m/s respectively.
Notlar:
School code: 0719
Konu Başlığı:
Tüzel Kişi Ek Girişi:
Mevcut:*
Yer Numarası | Demirbaş Numarası | Shelf Location | Lokasyon / Statüsü / İade Tarihi |
---|---|---|---|
XX(683075.1) | 683075-1001 | Proquest E-Tez Koleksiyonu | Arıyor... |
On Order
Liste seç
Bunu varsayılan liste yap.
Öğeler başarıyla eklendi
Öğeler eklenirken hata oldu. Lütfen tekrar deneyiniz.
:
Select An Item
Data usage warning: You will receive one text message for each title you selected.
Standard text messaging rates apply.