Korsflödesturbiner

Korsflödesturbiner represent a category of turbomachinery designed to extract energy from a fluid flow that interacts with the turbine blades in a specific manner. Unlike traditional axial or radial flow turbines, the fluid in a cross-flow turbine moves predominantly perpendicular to the axis of rotation, creating a characteristic "cross-flow" pattern. This design often involves a cylindrical rotor with blades mounted around its periphery. As the fluid enters and passes through the rotor, it impinges on the blades, causing rotation. A key feature is that the fluid passes through the rotor twice, once on entering and again on exiting, contributing to its energy extraction efficiency.

These turbines are known for their robustness and their ability to handle a wide range of flow conditions, including those with suspended solids or debris. This makes them suitable for applications where fluid cleanliness is not guaranteed. While not as common as some other turbine types in large-scale power generation, cross-flow turbines find use in smaller hydroelectric installations, particularly in micro and pico-hydro systems where their simplicity and adaptability are advantageous. Their design also allows for a relatively straightforward construction and maintenance. The specific geometry and blade configuration can be optimized for various head and flow rate conditions, allowing for a degree of customization for specific site requirements.