Vertical Axis Windmill Research Articles

A110 垂直軸型風力発電における集風効果の検討(その1) : 集風装置の検討(垂直軸方向風車の展開・改善・普及,OS2 自然エネルギー)

This paper proposes the wind collector with the vertical axis wind power generation. This proposes system is composed of the vertical axis windmill, the wind collector, and the generator. This experiment was examined the effect of wind collect in the wind tunnel. Moreover, this experiment compared about wind velocity characteristics, the output of power characteristics by setting angle of the wind collection board and the position. As a result, it confirmed wind collect effectiveness by introducing the wind collector.

A111 垂直軸型風力発電における集風効果の検討(その2) : 実験的検討(垂直軸方向風車の展開・改善・普及,OS2 自然エネルギー)

This paper proposes wind collector with the vertical axis wind power generation. This proposes system is composed of the vertical axis windmill, the wind collector, and the generator. This experiment was examined effect of wind collect in the wind tunnel. Moreover, this study compared about the voltage characteristics, the rotational speed characteristics , the output of power characteristics by setting angle of the wind collection board and the position. As a result, it confirmed wind collect device effectiveness by introducing the wind collector.

Vertical Axis Windmill with Variable Pitch Angle

Vertical Axis Windmill with Variable Pitch Angle

Wind tunnel tests on a 3m diameter Musgrove windmill

SYNOPSIS A 3m diameter model of a two bladed Musgrove vertical axis windmill has been tested in the British Aerospace wind tunnel at Filton. Tunnel constraints were kept to a minimum by using a low flow blockage and appropriate corrections were applied to the measurements. The results of these tests demonstrate the good performance of this type of windmill. Comparison of the measured performance with predictions from a simple mathematical model show excellent agreement. Maximum loads measured on the windmill are not well predicted by the mathematical model. In order to reconcile measurement and prediction large induced crossflows must be postulated at some blade rotational positions.