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. 2020 Jun 25;31:105922. doi: 10.1016/j.dib.2020.105922

Fig. 1.

Fig. 1

3D model of various types of turbine configurations a) Hybrid of Helical Savonius - simple Savonius in two stage (i.e., Wind turbine 1), b) Hybrid of Helical Savonius - Helical Bach in two stage (i.e., Wind turbine 2), c). Hybrid of Helical Bach - simple Bach in two stage (i.e., Wind turbine 3), d) Single stage helical Bach (i.e., Wind turbine 4).