Bridge Integrated Water Turbine: https://lnkd.in/eyU7n5SB
The patent https://lnkd.in/gFesNkZY relates to fluid machines serving different purposes. Turbines are generally divided into two types: resistance and lift runners. The rotational speed of a resistance runner's rotor blade can never exceed the flow velocity, whether the medium is air or water. While the vast majority of wind turbines are lift runners, this principle has yet to be adopted for water turbines. Classic water turbines, such as Pelton, Francis and Kaplan turbines, are resistance turbines which use the pressure of the water to convert flow energy into rotational energy in order to generate electricity. However, they can be considered a serious disadvantage due to their impact on the free flow of water and the river ecosystem. They also require complex and costly construction work. At RES, we have developed turbines that can be integrated into river courses without the need for dams, enabling kinetic energy to be converted directly from flowing water. To make this possible in slow-flowing watercourses, too, the water turbines presented below are designed as buoyancy turbines. They use an asymmetrical blade profile, which provides approximately one third more lift than a symmetrical profile. According to the invention, all water turbines have adjustable nose and trailing edge segments that are hinged to a load-bearing, steel, hollow box-profile blade segment. This ensures that the suction side of the asymmetrical blade profile is always aligned with the flow direction, both upstream and downstream. The video shows horizontal rotor rollers integrated into a bridge structure spanning a river without obstructing it.
#reswt1 #resfloater #resblade #resewing #reshydropower #waterturbine #energybooster #mechanics #hydrodynamics #physics #4voith
res-institute.com

Fish-Friendly Water Turbine for Rivers : https://lnkd.in/dZJ4scNa
The RES water turbine uses electromechanical actuators integrated into the blades to adjust the rotor. The suction side of the blades always faces the direction of the flow. Fish can safely pass through the turbine rotor in both directions. In this example, the vertical rotor modules are integrated into a bridge structure. Other examples demonstrate the potential of the buoyancy runner principle for run-of-river power plants in inland waters, tidal power plants in suitable coastal areas, and underwater hydroelectric power plants. The rotor blades consist of front, middle, and rear blade segments. The middle blade segment is designed as a rigid longitudinal beam of the rotor blade. At diameters P and P', the suction side of the blade profile changes regularly in the direction of flow.
#reswt2 #resewing #resblade #reswindpower #waterturbine #energytransition #electricity #energy #energybooster #mechanics #hydrodynamics #physics #4voith
res-institute.com

Flow conversion with a lift impeller : https://lnkd.in/d_UXVJcP
The rotor modules can be anchored at the bottom of a flowing watercourse or on the seafloor. There, they convert the flow into rotational energy. Many large rivers, such as the Nile, the Amazon, the Yangtze, the Mississippi–Missouri, the Huang He (Yellow River), the Ob–Irtysh, the Amur, the Ganges, the Lena, the Congo and the Mekong, carry water towards the sea that remains largely unused. Waterways on Earth's surface represent an untapped energy source. With underwater buoyancy runner technology, it is possible to extract energy from rivers without negatively impacting the ecosystem. Tidal currents represent a second largely untapped energy source. The underwater topography of the continental shelves amplifies tidal currents, allowing them to reach considerable speeds. This is precisely where RES's proposed underwater turbines could be used for energy generation.
#reswt3 #resewing #resblade #reshydropower #waterturbine #energytransition #electricity #energy #energybooster #mechanics #hydrodynamics #physics #4voith
res-institute.com

Oosterschelde proposal: https://lnkd.in/eXy6kFUm
The Energy Chain, which is dedicated to the 17.4 million people of the Netherlands, has published its first post of the year. At high tide, the Oosterschelde is dammed up and, at low tide, water flows into the North Sea at high speed. Between the piers of the barrage are drums containing six adjustable rotor blades each. These blades are driven by the current and connected by intermediate rotor discs to form a shear- and torsion-resistant frame girder with a nine-metre diameter. The rotor drums, with their adjustable blades, rotate at speeds up to five times faster than the current. If channelled through the existing barrage, they could generate an unlimited amount of energy. When the P–P′ diameter is perpendicular to the flow direction, the suction side of the asymmetrical blade profiles alternates between the inside and outside of the orbit. This causes the asymmetrically profiled blades to generate propulsive forces tangential to the flow in the flow-oriented and downstream halves of the orbit.
#reswt4 #resewing #resblade #reshydropower #waterturbine #energytransition #electricity #energy #energybooster #mechanics #hydrodynamics #physics #4voith
res-institute.com

24/7 power generation with the Oosterschelde barrier : https://lnkd.in/dgBFqN7M
A series of water turbines could be installed at the Oosterschelde Barrier. Each turbine features a funnel-shaped diffuser, also known as a diffuser stage. This advanced 'Wells turbine', which has a flow diameter of six metres, can maintain its direction of rotation when the flow direction changes due to the ebb and flow of the tide. Each turbine unit generates around 500 kW of continuous power. Assuming hundreds of these turbines could be installed, the total output would be in the range of 50 to 100 MW. The turbine's ring generator is integrated into the bridge structure, and the stator and rotor can be accessed via a maintenance walkway. The rotor blade features a central wing segment that connects it to the rotor, as well as a flow-through hub. The hub is designed as one of the six spokes of the turbine wheel. Adjustable nose and trailing edge segments are hinged to each of these spokes. Synchronising the adjustment of these segments creates an asymmetrical wing profile that can be aligned with the flow at a positive angle of attack during ebb and flood tides. This positive angle of attack causes the asymmetrical wing profile to generate a high lift force in the direction of rotation, converting the kinetic energy of the water into rotational movement. A variable asymmetrical blade profile is superior to a conventional turbine blade when the flow direction changes regularly. The confuser and diffuser stages use the nozzle effect to accelerate the flow velocity at the inlet by narrowing it, and at the outlet by creating suction.
#reswt5 #resewing #resblade #reswindpower #waterturbine #energytransition #electricity #energy #energybooster #mechanics #hydrodynamics #physics #4voith
res-institute.com

Floating on a River: https://lnkd.in/esTKEnbX
RES Water Turbine German Patent Granted : https://lnkd.in/ea2iajMR
International Patent Pending : https://lnkd.in/dhk7TFBi
Energy can be generated wherever there is flowing water. A floating turbine consists of a float that houses a generator. This is connected to an underwater rotor via a shaft. The top of the float is covered with photovoltaic cells. The rotor blades are connected by ring beams at their upper and lower ends and arranged at a radial distance from the shaft by tension spokes. The suction side of the rotor blades has a variable, asymmetrical foil profile and is aligned in the direction of flow by integrated actuators within both halves of the rotor, which is divided by diameters P and P'.
#reswt6 #reshydropower #resfloatingturbine #resfloater #resewing #resblade #waterturbine #energy #energybooster #mechanics #hydrodynamics #physics #4voith
res-institute.com

Twin turbines suspended from a float : https://lnkd.in/dFEmS9BD
This embodiment of the invention comprises two vertical-axis rotors that are connected to a float. The float is anchored to the riverbed or seafloor and automatically aligns with the current. These water turbines can be manufactured in different sizes and are suitable for seasonal operation on rivers that freeze over in winter, such as the St. Lawrence River in Canada. This type of energy generation is environmentally friendly and allows the turbines to be maintained during the winter months.
#reswt7 #reshydropower #resfloatingturbine #resfloater #resewing #resblade #waterturbine #electricity #energy #energybooster #mechanics #hydrodynamics #physics #4voith
res-institute.com