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Stork Fokker Aesp B.v.

Stork Product Engineering B.v.

Hagg, Franklin

Franklin Hagg

Bouke Fokkes Tuinstra

Antonius G Dassen

A heat recovery installation using solar energy includes a three-channel plate, in which the first channel layer, viewed from the outside, alternately discharges used air and supplies fresh air. The third channel layer, viewed from the outside, ensures the supply of used air and the discharge of fresh air, while in the second channel layer, viewed from the outside, the heat exchange between the used and fresh air takes place according to the counterflow principle. In order to produce this flow, small apertures are provided in the second and third plates, viewed from the outside, of the three-channel plate, as a result of which the flow in the channel layer, viewed from the outside, is at right angles to the channel plate. By making the airflow quicker than the heat flow (Pe&#x3e;&#x3e;1), no heat can flow from the inside to the outside, except for a small loss flow through the partitions and through radiation and, conversely, mainly heat exchange of the used to fresh air according to the counterflow principle takes place with heat recovery. If the channel plate is made of transparent material and the inner plate is provided with a (sun)light absorber, then (sun)light which shines on the three-channel plate is also converted into heat and given off directly and indirectly to the fresh air.

Heat recovery installation using solar energy

The invention relates to a light floating flue consisting of a wall of fiber-reinforced film which rotates about its axis to balance the reduced pressure in the flue with the centrifugal force on the gases in the flue and with the flue wall. The flue floats due to the friction with the rising air, the upward force of the lighter gases, optionally a zeppelin and balloon-like bodies filled with helium or hydrogen. In order to prevent bending moments on the flue, the flue is attached to the base of the tower by means of a tillable bearing.

Floating flue

According to a first aspect, the invention relates to a TEG module, in particular for a power source (), comprising a space () at least partially delimited by walls (), at least one thermoelectric generator () for the conversion of heat into electricity, in which at least one electrically insulated wall part is in thermally conducting contact with a first side () of the thermo-electric generator (), and the second side () is in heat-exchanging connection with an electrically insulated discharge element () for discharging heat used by the thermoelectric generator, as well as electrical conductors connected to the first and second side respectively () for the conduction of generated electricity, with thermally conducting pressure means for applying pressure to the said second side being provided between the second side () and the discharge element (), the said means comprises a thermally conducting flexible container (), which is filled with a pressure medium in a state of over-pressure.

Module comprising a thermoelectric generator, as well as power source

A high-output energy converter of an output-improving thermionic generator, thermally connected to other generators without moving parts that utilize the residual energy from the thermionic generator. The thermionic generator comprises a r&#x3b1;ultilayered vacuum diode, the layers of which are very thin and the gaps between the layers are also thin and kept at a distance from one another by selectively flexible spacer elements. Piezo elements or heating elements can precisely adjust the height of the gaps.

Connected energy converter, generator provided therewith and method for the manufacture thereof

A high-efficiency thermionic energy converter comprises a multilayer vacuum diode, the layers of which are very thin and the intermediate spaces between the layers are several nanometers thick. The layers are held at a distance from each other by arranging insulator elements embedded in the layers. One of the intermediate spaces is provided with a thin, open conductive elastic foam plate which fills the spaces possibly occurring due to deformation of an upper electrode. On the cold side the distance between the layers must be so small that here the thermionically generated current is increased by tunneling of electrons from layer to layer. The partial efficiency per layer is as optimal as possible by means of the choice of the geometry and the material. For the purpose of pumping heat from for instance the thick electrode to the other thick electrode of the converter, or vice versa, in accordance with the Peltier effect, a current is conducted through the converter which is increased by tunneling of electrons. Cooling or heating takes place subject to the current direction.

Energy converting apparatus, generator and heat pump provided therewith and method of production thereof

In order to reduce the noise nuisance caused during operation by rotor blades of a rotor of a wind turbine the rear edge of each blade is irregularly formed. In particular the saw-tooth form with a top angle smaller than about 150.degree. and preferably 10.degree. is found to produce a considerable noise reduction.

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Alkmaar, Netherlands

Franklin Hagg