Device and method for generating a dielectric barrier discharge
AssigneeTDK Electronics Co., Ltd.
InventorsStefan Nettesheim, Robert Krumphals, Johann Pichler, Markus Puff
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Abstract
In an embodiment a device includes a thermoelectric component, an electrode arranged opposite the thermoelectric component and a high voltage source configured to generate a high voltage between the thermoelectric component and the electrode sufficient to ignite a dielectric barrier discharge.
Claims35
A device for generating a dielectric barrier discharge, the device comprising:
- a thermoelectric component;
- an electrode arranged opposite the thermoelectric component;
- and
- a high voltage source configured to generate a high voltage between the thermoelectric component and the electrode sufficient to ignite the dielectric barrier discharge,
- wherein an area of the thermoelectric component is larger than an area of the electrode.
A device for generating a dielectric barrier discharge, the device comprising:
- a thermoelectric component;
- an electrode arranged opposite the thermoelectric component;
- a high voltage source configured to generate a high voltage between the thermoelectric component and the electrode sufficient to ignite the dielectric barrier discharge;
- and
- a controller configured to:
- operate the device in a cooling mode in which no dielectric barrier discharge is initiated and a surface of the device is cooled below a dew point of a process gas so that a water film is generated on the surface by condensation, and
- subsequently operate the device in a discharging mode in which the dielectric barrier discharge is generated on the water film.
A device for generating a dielectric barrier discharge, the device comprising:
- a thermoelectric component;
- an electrode arranged opposite the thermoelectric component;
- and
- a high voltage source configured to generate a high voltage between the thermoelectric component and the electrode sufficient to ignite the dielectric barrier discharge,
- wherein the thermoelectric component comprises two or more thermoelectric elements, and metal bridges connecting the thermoelectric elements,
- wherein the thermoelectric component further comprises a first ceramic plate covering the metal bridges on an upper surface of the thermoelectric component facing the electrode, and a second ceramic plate covering the metal bridges at a bottom side of the thermoelectric component,
- wherein the metal bridges and the first ceramic plate are dimensioned such that the following inequality is satisfied:
- D>Uignition/Uoperation×ε2/ε1×A, and
- wherein D indicates a thickness of the first ceramic plate, Uignition indicates an ignition voltage above which plasma ignitions occur between the metal bridges, Uoperation indicates an operating voltage applied to the device, ε2 indicates a dielectric constant of the first ceramic plate, ε1 indicates a dielectric constant of air, and A indicates a distance from adjacent metal bridges.
A device for generating a dielectric barrier discharge, the device comprising:
- a thermoelectric component;
- an electrode arranged opposite the thermoelectric component;
- and
- a high voltage source configured to generate a high voltage between the thermoelectric component and the electrode sufficient to ignite the dielectric barrier discharge,
- wherein the electrode and/or the thermoelectric component are coated with a glassy layer.
Dependencies are inferred from the claim text.