WO2009073267A2 – Harvesting Energy In Remote Locations – Google Patents

In accordance with another embodiment of the invention, a method for converting kinetic energy to electrical energy comprises, with an energy conversion module held in place by an anchor, and connected to the anchor by a rigid flexure member, translating environmental kinetic energy into motion of a first component relative to a second component to induce generation of electrical energy, the first component being fixed in position relative to an attachment member of the energy conversion module and the second component being attached to a compliant membrane characterized by mechanical properties that permit the energy second component to move in an oscillatory manner in response to external stimuli, whereby the first and second components are moved relative to each other and electrical energy is produced. Pivoted about a mast, the airfoil moves in an oscillatory manner in response to aerodynamic lift forces. The airfoil has a fixed configuration, and does not utilize mechanical trimming or aeroelastic flutter.

100 Frases de Dolor - Lifeder The embodiment includes and an anchor (102) as described above, a flexure (804) which connects the anchor (102) to a housing (806), and a compliant membrane (808), one end of which is connected to the anchor (102) or flexure (804), the other end of which is connected to the magnets, The flexure (804) is relatively rigid in comparison with the embodiment described above, so the housing (806) does not exhibit significant oscillatory motion. In accordance with another embodiment of the invention, apparatus for converting kinetic energy to electrical energy comprises an energy conversion module having an attachment member and first and second components which provide electrical energy when moved relative to each other, the first component being fixed in position relative to the attachment member; an anchor that is fixed in place when deployed; a rigid flexure member connecting the anchor with the energy conversion module; and a compliant membrane attached to the second component, the compliant membrane characterized by mechanical properties that permit movement in an oscillatory manner in response to external stimuli, whereby the first and second components are moved relative to each other and electrical energy is produced.

Tecnicas De Relajacion

In accordance with another embodiment of the invention, a method for converting kinetic energy to electrical energy comprises, with an energy conversion module held in place by an anchor, and connected to the anchor by a flexure member, translating environmental kinetic energy into motion of a first component relative to a second component to induce generation of electrical energy, the first component being fixed in position relative to an attachment member of the energy conversion module and the second component being free to move in at least one dimension within a predetermined range relative to the attachment member, the flexure characterized by mechanical properties that permit the energy conversion module to move in an oscillatory manner in response to external stimuli, whereby the first and second components are moved relative to each other and electrical energy is produced.

Dolores Musculares En Los Brazos

Referring to Figure 1, a first exemplary embodiment of an energy harvesting device includes an energy conversion module (100) which is connected to an anchor member (102) via a flexure (104). The energy conversion module (100) operates by using vibrations to cause motion of magnets with respect to coils, thereby inducing electrical current. In Figure 9 the anchor (102) is downstream relative to the compliant membrane (808), In Figure 10 the anchor (102) is upstream relative to the compliant membrane (808). In Figures 11 and 12 the energy harvesting device is transverse mounted relative to the direction of fluid flow such that the anchor (102) and compliant membrane (808) are disposed on an axis that is approximately perpendicular to the direction of fluid flow. In other words, fluids pass through the center of the housing (806), and cause the free end of the compliant membrane to move relative to the anchored end in an oscillatory manner.

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Consequently, the magnets (800) which are disposed on a free end of the compliant membrane (808) are free to move in an oscillatory manner. Further, the compliant membrane facilitates the oscillatory motion of the magnets because the membrane interferes with fluid flow. The oscillatory motion of the magnets (800) with respect to the coils (802) results in production of electrical energy. Note that the relative motion of the magnets and coils is not necessarily similar to the relative motion of the energy conversion module relative to the anchor. Because the device can be tuned to particular flow characteristics, the state of the device (harvesting or not harvesting) is indicative of flow condition. Because this information can be of value, it may be useful to configure the device to signal information about the state of the energy harvesting device to other devices. For example, and without limitation, the energy storage device may be enhanced with an energy storage module (704), a device (706) that utilizes the energy to perform a useful task such as data collection, and a transmitter (708) to send signals to other devices.

Dolor Sordo En El Pecho

The charging circuit utilizes gate controlled thyristors for coupling the harvested energy to a battery, and includes means for gating the thyristors at the proper time with respect to the resonant cycle in the power circuit. Energy is inductively transferred from the power circuit to the charging circuit, thereby allowing the circuits to remain electrically isolated. US 3938020 A, CHARGER CIRCUIT FOR ACCESSORY BATTERY, describes a charging circuit adapted to harvest excess energy from a resonating power circuit. Dolor de hombros y espalda alta . US 4387318, PIEZQ-ELECTRIC FLUID ELECTRIC GENERATOR, describes a bending element that generates electrical power when deformed by fluid flow. Another application outside the oil industry could be placing these devices along currents in rivers, water pipelines, sewers, wind passages, and any other flow that can induce vibrations and therefore shaking the module that transforms kinetic energy into electric one.

Dolores Musculares Y Fiebre

Multiple devices may also be placed in series along the flow. Figure 8 illustrates an alternative embodiment in which vibration of the magnets (800) (or alternatively coils (802)) is enhanced by interference with fluid flow. Figure 1 illustrates an energy harvesting device. As shown in Figures 3 through 6, the energy harvesting device may be mounted in various different orientations with respect to the direction of fluid flow. The anchor (102) may include an array of protruding tabs (108) disposed in a circle, the tips of which define a slightly greater diameter than the borehole or casing in which the energy harvesting device is being mounted. The anchor member (102) functions to secure the energy harvesting device to a surface of the surrounding environment, such as the inner wall (106) of a borehole, casing or production tubing. However, the energy harvesting device could function in the main casing or production tubing.

Dolor Espalda Lado Derecho

US 6532740 B 1 , GENERATOR EMPLOYING THE CORIOLIS EFFECT, describes a system for employing the Coriolis effect for the generation and storage of energy. An electrical generator in the side passageway is used to generate electrical energy using the fluid flow. The movement of the member is used to generate electrical energy. Further, because the source of kinetic energy is not dependent on a limited reservoir of fuel or battery power, the device can produce electrical energy continuously. It should be noted that the application of any of the various embodiments of the invention described above is not limited to the production phase of natural resource recovery operations.

Tipos De Dolor De Espalda

Dolor de espalda tras tener un bebé - YouTube For example, a significant amount of fluid energy is available during fracturing operations, and a similar device may be used for distributed sensor networks or other applications requiring energy downhok, based on the energy harvesting principles described above. This alternative embodiment may be useful during completion, production and fracturing operations, oil/gas pipelines, and other instances in which the fluid flow regime is adequate. Figures 3 through 6 illustrate orientation of the energy harvesting device of Figure 1 with respect to the direction of fluid flow. Dolor lumbar crónico . GB 1116451 A, METHOD OF AND APPARATUS FOR TRANSMITTING ENERGY BY PRESSURE OSCILLATIONS IN A FLUID, describes a fluid-pressure apparatus with a branch duct of a gas or liquid-filled duct through which oscillations are transmitted by a mechanical oscillator to a receiver which is connected to a cylinder having an adjustable piston.

In each of the orientations illustrated in Figures 3 through 6 the energy harvesting device is disposed in an alternative fluid path (“side package”) that is distinct from the main fluid path within casing or production tubing. Further, energy harvesting devices may operate simultaneously in both the casing (700) and the production tubing (702), e.g., to obtain comparative measurements from them or from sensors powered by them. Referring to Figure 13, individual units of the energy harvesting device can be disposed in the completion string as part of a casing (1300) and as part of the tubing (1302). As already described with regard to other embodiments, optional enhancements include energy storage, utilizing the energy to perform a useful task such as data collection, and a transmitter to send signals to other devices. Referring to Figure 7, in various alternative embodiments the energy harvesting device can be enhanced with optional equipment.

Another advantage of the side package deployment technique is that the device can be retrieved relatively easily, thereby enabling design and implementation of less costly energy harvesting devices. For example, boreholes may be drilled tens of thousands of meters into the earth, and in the case of offshore drilling, the borehole may be thousands of meters under water. The device includes a piezo flexure that is loaded with a compressive pre-load force to place the piezo flexure under compression. The flexure (104) and energy conversion module (100) may be selected to time the energy harvesting device to the source of vibrations in order to enhance energy conversion efficiency. The compressive pre-load effectively provides a negative spring constant which “softens” the piezo flexure and enhances responsiveness to low frequency vibration energy. In order to recover natural resources from subterranean formations it is often necessary to perform tasks related to exploration, monitoring, maintenance and construction in remote locations that are either difficult or impractical for personnel to reach directly.