A shisha device for heating an aerosol-forming substrate to generate an aerosol is provided, the shisha device including: a liquid cavity containing a volume of liquid through which aerosol generated by the shisha device is drawn before inhalation by a user, the liquid cavity having a head space outlet; an article cavity to receive the aerosol-forming substrate, the article cavity being in fluid communication with the liquid cavity; and an electromagnetic field generator to generate a radio frequency (RF) electromagnetic field in the article cavity, the electromagnetic field generator including a magnetron or a solid state RF transistor. A shisha system is also provided, including the shisha device and the aerosol-generating article. An aerosol-generating article for the shisha system is also provided.

A microwave heat converter includes a cylindrical waveguide cavity, a non-conductive conduit, and a microwave waveguide. The non-conductive conduit is arranged to carry liquid flowing through a central area of the cylindrical waveguide cavity. The microwave waveguide is configured to deliver microwave power along the cylindrical waveguide cavity in a TE(1,1) mode to heat the liquid. The heat converter may be used in various systems such as heaters, combi boilers, and absorption refrigeration systems.

A method and apparatus for treating residuals or waste streams from a plant, such as a drinking water treatment plant. The method includes the steps of obtaining plant residuals or waste streams from a water treatment plant and irradiating the plant residuals or waste streams using microwave radiation from a microwave source. The method also includes the step of drying the plant residuals or waste streams to a predetermined moisture, volume, or weight content reduction and disposing of the same.

An exemplary method for protecting a microwave magnetron is disclosed provided by the steps of positioning one or more containers on a conveyer belt which passes through the microwave oven, where each container is holding a liquid. Exemplary embodiments also provide the steps of ramping up the magnetron while a container is passing through the microwave oven, positioning product for microwaving on the conveyer belt, and applying microwave energy to the product. A system for protecting a magnetron is also disclosed having a plurality of containers, each container holding a liquid and positioned atop the conveyer belt before placing a product for microwaving on the conveyer.

Embodiments herein include processing systems for food products and related methods. In an embodiment, a food processing system is included with a continuous processing channel divided into a come-up chamber, a main electromagnetic wave (such as microwave) heating chamber, and a cool-down chamber. The continuous processing channel can define at least two separate portions oriented for vertical product movement. In various embodiments, the come-up chamber, the main electromagnetic wave heating chamber, and the cool-down chamber are at least partially filled with liquid. The system can further include a product conveyor mechanism to convey food products to be processed continuously along a conveyance path passing from the come-up chamber through the main electromagnetic wave heating chamber and to the cool-down chamber. The system can further include an electromagnetic wave energy emitting apparatus configured to emit electromagnetic wave energy into the main heating chamber. Other embodiments are also included herein.

A pulsed electromagnetic irradiation system for water treatment including raw water supply unit in fluid communication with a reaction vessel, a multimode cavity in which the reaction vessel is partially positioned. A magnetron generator is positioned adjacent the multimode cavity and is electromagnetically coupled with liquid within the reaction vessel. A stirring motor is positioned adjacent a bottom surface of multimode cavity and operatively coupled with the reaction vessel to stir the liquid within reaction vessel. A parabolic arm air cooled condenser is terminally connected to the reaction vessel to be in fluid communication with the reaction vessel. A gravity vacuum funnel, where the gravity vacuum funnel is in communication with a first air/water cooled condenser. The first air/water cooled condenser outputs fresh water to a fresh water storage unit.

A solid-state radio frequency (SSRF) water heating apparatus is disclosed. In embodiments, the SSRF water heater includes a water tank, SSRF generator array and RF sensors enclosed within an RF-shielded cage. The SSRF array synthesizes RF signals in the microwave range and transmits the RF energy through the water tank, exciting and heating the water molecules without direct contact. The RF sensors at the opposite end of the tank sense residual RF energy not absorbed by the water. Control processors regulate the generation and transmission of the RF energy based on the sensed residual energy. The heated water and/or generated steam is piped to hot water dispensers, beverage makers, or steam ovens.

A system for applying microwave energy to a product in which a conveyor extends through a central portion of a cavity having a pair of opposing sidewalls. The conveyor is supported directly or indirectly by a plurality of support elements attached to and between the sidewalls. The system includes top and bottom waveguides directing microwave energy toward the conveyor, and provides for attachment blocks surrounding the support elements and fastened to a support sheet on which the conveyor is conveyed. Contact strips can be used to reduce conveyor friction.

The present invention relates to a pressure vessel (1) for receiving samples (P) to be heated, having a reaction chamber (2) as a pressure space for the initiation and/or facilitation of chemical and/or physical pressure reactions, the reaction chamber (2) being designed for receiving a liquid (5), a magnetic disk (8) mounted rotatably about an axis of rotation in the reaction chamber (2), and a magnet arrangement (10), provided outside the reaction chamber (2), for generating a rotating magnetic field for rotationally driving the magnetic disk (8) about its axis of rotation, the magnetic disk (8) having at least one passage bore (13), which extends transversely in relation to the axis of rotation and is provided in such a way that liquid (5) received in the reaction chamber (2) is driven through the passage opening (13) by rotation of the magnetic disk (8) in order to stir the liquid (5).

A method and apparatus for treating residuals or waste streams from a plant, such as a drinking water treatment plant. The method includes the steps of obtaining plant residuals or waste streams from a water treatment plant and irradiating the plant residuals or waste streams using microwave radiation from a microwave source. The method also includes the step of drying the plant residuals or waste streams to a predetermined moisture, volume, or weight content reduction and disposing of the same.