A power system includes a first wheel coupled to a first turbine. The first wheel includes a first central hub on a first central axis, and a first plurality of water scoops arranged at a radial distance from the central hub, the first plurality of water scoops arranged to engage a water source to turn the first wheel on the first central hub about the first central axis. The first wheel has a first plurality of weights arranged substantially equally spaced about a circumferential portion of the first wheel. A second wheel is coupled to a second turbine, and includes a second central hub on a second central axis, and a second plurality of water scoops arranged to engage the water source to turn the second wheel about the second central axis, the second wheel having a plurality of weights arranged substantially equally spaced about a circumferential portion of the second wheel. An air conduit is coupled to a blower of the second turbine to receive blown air from the blower and to blow air through the conduit into the plurality of water scoops of the first and of the second wheels.

The invention relates to a water wheel having a plurality of circumferentially mounted buckets adapted to receive fluid, each of the buckets having a pivotable containment flap for maintaining the fluid in the buckets for a longer period during downward rotation of the wheel. The containment flaps comprise a buoyant material such that the flaps will float on top of the fluid housed in the buckets. In an embodiment, the buckets are mounted on tracks such that when filled with fluid and rotated on the wheel to a downward angle the buckets will slide radially outwardly, producing added force and power to the wheel and increasing the mechanical energy which is generated. A means for moving the buckets to a retracted position when empty such as heavy spring or elastic cord members or strut is also provided. In combination, the slide and flap increase the power of the wheel.

A small hydropower of a novel concept, comprising: two side supports; a main rotation axis provided on the upper end between the two side supports; a rotation body for rotating around the main rotation axis; fillable-then-emptiable water containers which are provided around the circumference of the rotation body, remain horizontally level, add weight by being filled with a certain amount of water when positioned at the top center of the rotation body during rotation, and remove the weight by spilling when positioned at the bottom center; a selective water supply device which can provide, to a fillable-then-emptiable water container that is positioned at the top center of the rotation body, water, and which temporarily stops discharging water until the next fillable-then-emptiable water container is positioned, if one fillable-then-emptiable water container is completely filled.

A water driven system for generating useful work has a floating support structure with a pair of spaced apart frame portions. A waterwheel is mounted between the two spaced apart frame portions in an upright manner. The waterwheel has a number of radially extending spokes for turning the waterwheel in response to a flow of water against the spokes when the floating support structure is mounted on a moving body of water. The waterwheel has outwardly extending axle shafts which are used to produce useful work as the wheel rotates.

Provided is a hydroelectric power generator for a pipeline that is installed at a position in a pipeline to generate electricity using a rotating turbine by inducing a flow velocity of water therein and uses environment-friendly energy through the water velocity while varying in size in accordance with the size of a pipeline to generate electricity even at a low-speed stream. The hydroelectric power generator for a pipeline generates electricity with high efficiency by increasing an angular speed at the same flow speed by adjusting the number and radius of turbine blades.

A buoyancy powered electrical generator. A source of compressed gas is provided. The gas, which may be air, is compressed using a conventional compressor. In one embodiment, the compressor is powered by a windmill, turbine, or other conventional means. The compressed gas may be stored in a tank for an indefinite period. If necessary, the tank may be transported to the generator via truck, train or other conventional transportation means. During generation, compressed gas is released into a series of hollow, flooded drums mounted on a wheel in a liquid filled chamber. Introducing gas into the drums closes a valve in the drums and evacuates liquid from the drums, causing the drums to become buoyant. The buoyant drums exert a buoyant force on the wheel, causing it to rotate. The wheel is connected to a rotor in a magnetic generator. Rotating the wheel turns the rotor, thereby generating electricity.

A water driven power generating system has a frame with a waterwheel carried within the frame in an upright manner having a plurality of water receiving elements for turning the waterwheel. A water discharge manifold is used to discharge water from a supply tank onto the water receiving elements. The water supply tank is supplied with water from an adjacent water reservoir, such as a stock tank. After passing over the water receiving elements of the water wheel, the discharge water is allowed to flow back to the water reservoir by gravity. The water used in the system is pumped from the reservoir to the supply tank by a truck mounted pump which is powered by the power take-off of the truck.

Through dividing all blades into four or more blade groups including a certain number, which is three or more, of the blades, the blade located in the rearmost portion of each blade group in a direction of rotation is selected as a main blade, and remaining blades are selected as auxiliary blades, the length of each of the auxiliary blades is set to be shorter than the length of the main blade, and corresponding inner edge portions are positioned to the front, in the direction of rotation, of a normal line that passes through an outer edge portion of the blade, and an extension line of a chord line that connects the outer edge portion and the inner edge portion of the blade to one another are made to intersect with the main blade that is adjacent to the front in the direction of rotation.

Methods and systems for controlling the release of heat by a temperature control unit are provided. In one embodiment, the method includes monitoring a heat release condition of the temperature control unit. This method also includes determining, via a controller, whether to release the heat generated by the temperature control unit to an ambient environment outside of the internal space based on the heat release condition. Also, this method includes operating a HVAC circuit of the temperature control unit in a heat release mode when the controller determines that the heat generated by the temperature control unit is to be released to the ambient environment outside the internal space. Further, this method includes operating the HVAC circuit of the temperature control in a heat storage mode when the controller determines that the heat generated by the HVAC unit is not to be released to the ambient environment outside the internal space.

A water driven system for generating useful work has a floating support structure with a pair of spaced apart frame portions. A waterwheel is mounted between the two spaced apart frame portions in an upright manner. The waterwheel has a number of water receiving troughs for turning the waterwheel in response to a flow of water against the troughs when the floating support structure is mounted on a moving body of water. The waterwheel has side plates with outwardly extending axle shafts which are used to produce useful work as the wheel rotates.