The hydroelectric generator using a conduit turbine, is characterized in that at least two conduit turbine units are serially arranged in multiple levels, the conduit turbine units each comprising: a driving shaft which penetrates the center of a conduit through which a flow for electric generation passes to the inside; a conduit support main body which is provided so as to support the driving shaft, and has an arm extending towards the inner surface of the conduit; a propeller which is between two conduit support main bodies, is fixed to the driving shaft, and rotates by means of the movement of the flow; an internal gear which rotates together with the driving shaft from between the conduit support main bodies; an external gear which is driven together with a shaft, outside the conduit, as a rotational force is delivered to the internal gear; and an electric generator.

The hydroelectric generator using a conduit turbine, is characterized in that at least two conduit turbine units are serially arranged in multiple levels, the conduit turbine units each comprising: a driving shaft which penetrates the center of a conduit through which a flow for electric generation passes to the inside; a conduit support main body which is provided so as to support the driving shaft, and has an arm extending towards the inner surface of the conduit; a propeller which is between two conduit support main bodies, is fixed to the driving shaft, and rotates by means of the movement of the flow; an internal gear which rotates together with the driving shaft from between the conduit support main bodies; an external gear which is driven together with a shaft, outside the conduit, as a rotational force is delivered to the internal gear; and an electric generator.

Apparatuses, systems, and methods are provided for generating power. A pipe having an input flow is coupleable to an input section configured to receive at least a portion of the input flow. A generation section is coupleable to the input section and includes a pipe section to carry the at least a portion of the input flow, a turbine coupleable to the pipe section and configured to capture energy from the at least a portion of input flow carried by the pipe section, and a generator coupleable to the turbine and configured to generate power from the energy captured by the turbine. An output section is coupleable to the pipe and configured to provide output of the generation section to the pipe.

A thermal utilization system is capable of producing power, storing energy via a chemical or and a hydropower-elevation means. It also capable of transport fluid as vapor over obstacles and terrains, as well as desalinate water. It may in some embodiments do all or some of these tasks simultaneously and with the same amount of energy. It may run with any source of energy including renewable energy sources such as solar energy, and wind. The system may use that energy to run a heat engine and, at the same time, stores that energy via chemical separation. When energy is needed, the system may withdraw the chemical substances and lets them interact to claim the energy back, and then use it to run a heat engine and desalinate water. Some parts of the system can be used for cooling and heating. The system may be configured to be an air conditioner unit or a refrigerator that has an internal back up energy storage.

A thermal utilization system is capable of producing power, storing energy via a chemical or and a hydropower-elevation means. It also capable of transport fluid as vapor over obstacles and terrains, as well as desalinate water. It may in some embodiments do all or some of these tasks simultaneously and with the same amount of energy. It may run with any source of energy including renewable energy sources such as solar energy, and wind. The system may use that energy to run a heat engine and, at the same time, stores that energy via chemical separation. When energy is needed, the system may withdraw the chemical substances and lets them interact to claim the energy back, and then use it to run a heat engine and desalinate water. Some parts of the system can be used for cooling and heating. The system may be configured to be an air conditioner unit or a refrigerator that has an internal back up energy storage.

A runner for a hydraulic turbine configured to reduce fish mortality. The runner includes a hub and a plurality of blades extending from the hub. Each blade includes a root connected to the hub and a tip opposite the root. Each blade further includes a leading edge opposite a trailing edge, and a ratio of a thickness of the leading edge to a diameter of the runner can range from about 0.06 to about 0.35. Further, each blade has a leading edge that is curved relative to a radial axis of the runner.

A runner for a hydraulic turbine configured to reduce fish mortality. The runner includes a hub and a plurality of blades extending from the hub. Each blade includes a root connected to the hub and a tip opposite the root. Each blade further includes a leading edge opposite a trailing edge, and a ratio of a thickness of the leading edge to a diameter of the runner can range from about 0.06 to about 0.35. Further, each blade has a leading edge that is curved relative to a radial axis of the runner.

The present invention relates to a water intake structure according to a first aspect. The structure includes a plurality of elongate members. The elongate members couple together and are trapezoidal in lateral cross-section. There is also provided a water intake structure according to a second aspect. The structure includes a plurality of elongate members. The elongate members couple together. Each said elongate member has first and second exterior surfaces that are planar and a third exterior surface that is outwardly concave.

A piezoelectric power apparatus wherein piezoelectric material forms one wall of a liquid-filled container. Water pressure within the container is made to rapidly vary either by a cam operated piston or a motor operated ball valve acting on a pressurized liquid flow. The piston reciprocates through a wall of the container to alternately increase and decrease the pressure in the liquid. The ball valve periodically interrupts the pressurized liquid flow to alternately increase and decrease the pressure in the liquid. In either case, the alternate increase and decrease in the pressure in the liquid creates pressure variations in the piezoelectric material.

A piezoelectric power apparatus wherein piezoelectric material forms one wall of a liquid-filled container. Water pressure within the container is made to rapidly vary either by a cam operated piston or a motor operated ball valve acting on a pressurized liquid flow. The piston reciprocates through a wall of the container to alternately increase and decrease the pressure in the liquid. The ball valve periodically interrupts the pressurized liquid flow to alternately increase and decrease the pressure in the liquid. In either case, the alternate increase and decrease in the pressure in the liquid creates pressure variations in the piezoelectric material.