Abstract
Hydropower has been attracting attention as a renewable energy. As for the small-scale power generation for low-drop use were limited until now, the aim of application is the power generation by Darrieus-type hydro turbine in the small waterway. With the installing the guide plate at the rear of the water turbine, the effect of efficiency improvement is verified. Experiments in the test model and numerical analysis by two-dimensional models were carried out. As a result, when the guide plate at the rear of the water turbine is installed, performance improvement can be expected by attaching a tilt angle against waterways. In addition, torque improvement can be expected by installing the guide plate in the upstream side of water turbine rotational direction.
