Effects of the Blades Orientation on a Cross-Flow Water Turbine Performance

Abdelouahab BENZERDJEB; Bouabdellah ABED; Habib ACHACHE; Mohammed K. HAMIDOU; Alaxender M. GORLOV

Makale detayları

Effects of the Blades Orientation on a Cross-Flow Water Turbine Performance

Yazarlar:

Abdelouahab BENZERDJEB | Bouabdellah ABED | Habib ACHACHE | Mohammed K. HAMIDOU | Alaxender M. GORLOV

Dergi:

The Eurasia Proceedings of Science Technology Engineering and Mathematics 2018 Issue 4, pp.203-211

Belge Tipi:

Makale

Yayın Tarihi:

12/2018

Belge Dili:

İngilizce

Document ID (Org No.):

2000660939

Özet:

 


Efficiency and power
improvement of cross-flow turbines harnessing rivers and ocean water energy is
a key issue. Therefore, in this paper, we present the results of an experimental investigation on the effects of the blades orientation on
a cross-flow water turbine
performance. Four similar test models (same dimensions and blades) bur for different blades orientation angle i = 1.75 °, 4.5 °, - 1.75 ° and - 4.5 ° have been tested to evaluate the
performance of this vertical axis water turbine (VAWT), for several water flow velocities V varying from
0.3 to 0.59 m/s, which correspond to a water free flow Reynolds number of 2.08 104 to 4.36 104. An analysis of these
experimental results has shown that the best performance (biggest power and
power coefficient) was obtained for the test model with its blades orientation
angle set to 1.75 ° and the worst performance was given for the test model blades
orientation of -4.5 °. A comparison of the present results with those obtained in a
previous experimentation for a similar test model but with i = 0 °, has shown that the test model with its blades orientation angle fixed to
1.75 °, furnished relative increases of optimum mechanical power and of
corresponding power coefficient respectively as much as 82 % and 67 % with
respect to the results for i = 0 °, at a flow velocity equal to 0.37 m/s.
While, the test model, with negative angle of -4.5 °, gave smaller generated
power and power coefficient with corresponding relative decreases of about 49 %
and 36 % with respect to those obtained for the test model with its blades
fixed at 0 °.

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Makale detayları

Effects of the Blades Orientation on a Cross-Flow Water Turbine Performance

Yazarlar: Abdelouahab BENZERDJEB | Bouabdellah ABED | Habib ACHACHE | Mohammed K. HAMIDOU | Alaxender M. GORLOV

Dergi: The Eurasia Proceedings of Science Technology Engineering and Mathematics 2018 Issue 4, pp.203-211

Belge Tipi: Makale

Yayın Tarihi: 12/2018

Belge Dili: İngilizce

Document ID (Org No.): 2000660939

Sayı

Yazarlar:

Abdelouahab BENZERDJEB | Bouabdellah ABED | Habib ACHACHE | Mohammed K. HAMIDOU | Alaxender M. GORLOV

Dergi:

The Eurasia Proceedings of Science Technology Engineering and Mathematics 2018 Issue 4, pp.203-211

Belge Tipi:

Makale

Yayın Tarihi:

12/2018

Belge Dili:

İngilizce

Document ID (Org No.):

2000660939