WO2010135197A1 – Fluid Flow Energy Harvester Surface Modifications – Google Patents

On the other hand, the hydro energy potential of thousands of rivers, streams, and canals remain untapped because hydro turbines, as an economical and practical matter, do not operate effectively with a low water head: in other words, when water level differences are about three meters or less. The Magnus effect was first publicized by Professor G. Magnus in 1853. The Magnus effect is a physical phenomenon in which a spinning object creates a current of rotating fluid about itself. The system is also constructed with an inflow channel is provided with diverters and baffles to direct the flow of fluid to the cylinder while the surrounding channel creates a boundary condition which focuses the fluid flow so that there are only minimal losses in fluid flow interacting with the Magnus cylinder. In the case of pneumatic energy conversion, the channel forces the air to be directed at the air cylinder and delivers it so maximum lift is created.

Dolor En El Hombro

Illustration of abstract glowing neon light effects - great for a futuristic space 7. For the cylinder 2005 the sum of the Force 1001, which is the force created by the adhesion of the fluid to the cylinder protrusion, and the force 1005, which is the force between the fluid to fluid interface between the protrusions, is less than the force 1010 for cylinder 2005, force 1010 is the force created by the adhesion of the fluid to a smooth cylinder because the adhesion forces are greater for the water to wetted surface interface as compared to the water to water shearing force. If a rotating cylinder is mounted on a vertical axis, the lift is developed at right angles to the direction of water flowing past the cylinder, left or right depending upon the direction of rotation. For example missiles and bullets, when spinning around the long axis, always depart from their ballistic paths.

Low head and low flow hydraulic conditions are prevalent throughout the world. The walls 8, 9, 10 and 11 act as a concentrator for the fluid flow by channeling a greater volume of fluid gathered by walls 4,5,6 and 7 to the energy harvester thereby increasing the speed of the fluid that will increase the lift generated by the cylinder.

Dolor Muscular Bayer

This acts as a concentrator for the fluid flow by channeling a greater volume of fluid to the energy harvester thereby increasing the speed of the fluid that will increase the lift generated by the cylinder. The advantage of increased torque is that power is directly related to the force developed and the speed at which the cylinder rotates which is converted to watts that a rotating machine can produce. Systems have also been developed to generate power using lower water head. When the apparatus is immersed in a fluid flow (gaseous or liquid) a torque of rotation is developed when the shafts are aligned with the fluid flow, and this torque of rotation is reduced as the shaft approaches a position transverse to the fluid flow. BRIEF SUMMARY OF THE INVENTION As used herein, the term “hydro application” and “hydraulic” are used to describe the use of the energy harvesting device with regard to liquid, and the term “gas application” and “pneumatic” used to describe the use of the energy harvesting device with regard to gas (e.g., air).

  • Camina a paso rápido
  • Golpe de rodilla, ascendente o circular
  • Apparatus as recited in claim 5, wherein said platform moving means comprises
  • Está considerada como uno de los mejores antibióticos naturales que existe

Testing performed in a hydraulic flume gave the following results found in Table 4 and 5. Como aliviar dolor de espalda alta . The percentage increase in lift or Magnus side force at each water velocity for a dimpled cylinder with 1308 dimples as compared to a smooth cylinder of 1.25 inch diameter is shown in Table 4. Table 5 shows the percentage increase in velocity at each water velocity for a dimpled cylinder with 1308 dimples as compared to a smooth cylinder of 1.25 inch diameter. By contrast, a tubercule is a feature that is structured so that its outermost dimension is greater than the nominal diameter of the cylinder.