Abstract: An induction heater for a cooking surface. The induction heater includes an electrically insulating layer, at least one inductor defining a winding adapted to heat at least one cooking utensil, at least one sensor adapted to detect whether the at least one cooking utensil is placed above the cooking surface, and at least one magnetic flux concentrator. The at least one inductor and the at least one sensor are arranged on the electrically insulating layer. That layer is interposed between the at least one inductor and the at least one magnetic flux concentrator.

Abstract: A vending machine adapted for dispensing at least one pre-packaged food product includes a microwave oven. The microwave oven includes a magnetron that emits microwave electromagnetic radiation, a housing that defines a microwave cavity for receiving the food product. The housing defines a first opening to allow passage of the pre-packaged food product between outside of the microwave cavity and inside of the microwave cavity. The microwave oven also includes a first chain door that selectively covers the first opening so as to prevent the microwave electromagnetic radiation from escaping the housing through the first opening.

Abstract: A vending machine adapted for dispensing at least one pre-packaged food product includes a microwave oven. The microwave oven includes a magnetron that emits microwave electromagnetic radiation, a housing that defines a microwave cavity for receiving the food product. The housing defines a first opening to allow passage of the pre-packaged food product between outside of the microwave cavity and inside of the microwave cavity. The microwave oven also includes a first chain door that selectively covers the first opening so as to prevent the microwave electromagnetic radiation from escaping the housing through the first opening.

Abstract: A glass container production line and process include a first step of heating a portion of the glass container by delivering microwaves and conveying them to the portion of the glass container. Microwave delivery is carried out at a first power level for a first time interval so as to bring the portion of the glass container from an ambient temperature to an intermediate temperature, and at a further power level, which is lower than the first power level, for a further time interval following the first time interval, so as to bring the portion of the glass container from the intermediate temperature to a first predetermined working temperature.

Abstract: Provided are a heating device and a refrigerator. The heating device includes: a cylinder body, in which a heating cavity is defined and configured to place an object to be processed; an electromagnetic generating module, configured to generate an electromagnetic wave signal; a radiating antenna, electrically connected with the electromagnetic generating module to generate electromagnetic waves of a corresponding frequency in the heating cavity according to the electromagnetic wave signal, so as to heat the object to be processed in the heating cavity; and a signal processing and measurement and control circuit, electrically connected with the electromagnetic generating module and disposed outside the cylinder body. The size of the available space inside the heating cavity is greatly increased, thereby increasing the space utilization rate of the heating cavity.

Abstract: Inductive heating systems and method of controlling the same to reduce biological carryover are disclosed herein. An example system includes an induction heater including a tank circuit, the tank circuit including a work coil and a sense coil. The sense coil is to detect a magnetic field generated by the work coil and to output signals in response to the detection. The example system includes a controller to cause the tank circuit to oscillate at a resonant frequency in response to the signals and a power drive unit in communication with the controller and the induction heater. The power drive unit is to adjust power provided to the induction heater in response to the controller driving the tank circuit to oscillate at the resonant frequency.

Abstract: An apparatus for a (non-combustible) aerosol generating device is described including: a resonant circuit including one or more inductive elements for inductively heating a susceptor arrangement to heat an aerosol generating material to thereby generate an aerosol, wherein the inductive elements are mounted on a first external surface of a substrate; a switching arrangement for enabling an alternating current to be generated from a voltage supply and flow through one or more of said inductive elements to cause inductive heating of the susceptor arrangement, wherein the switching arrangement includes a plurality of transistors mounted to a second external surface of the substrate; and a heat sink, wherein the inductive elements of the resonant circuit and the transistors of the switching arrangement are thermally connected to the heat sink.

Abstract: A power supply system for an electric arc furnace includes an AC input connectable to an electrical grid and an AC output for supplying at least one power electrode of the arc furnace. The power supply system further includes a converter circuit interconnected between the AC input and the AC output. The converter circuit includes at least one converter cell with a capacitor and semiconductor switches for series connecting the capacitor between a circuit input and a circuit output of the converter circuit.

Abstract: A countertop (1) for kitchen furniture comprising a hob (12) with at least one magnetic inductor (14) designed to be used for cooking food and located underneath at least one cooking area (16) of said hob (12), said hob (12) further comprising at least one removable protection element (18) designed to be positioned on top of said at least one cooking area (16). The hob (12) is provided with at least one safety device (20) designed to ensure correct positioning of the at least one removable protection element (18).

Abstract: Aspects of the present invention relate to an induction heating system for heating a component. The induction heating system includes a power module for outputting an alternating current, the power module being operable to output the alternating current at a variable supply frequency. A controller is provided to identify at least one resonant frequency of the alternating current supplied to the at least one induction element. The controller is configured to determine an operating temperature of the component in dependence on the at least one identified resonant frequency. Aspects of the present also relate to an induction heating controller; a component having an induction heating element; and to a method of heating a component by inductive heating.

Abstract: A heater and/or a reactor system having a conductive medium and a conductor adjacent to the conductive medium is described. The system has a source of electrical energy coupled to the conductor to provide electrical energy and create a magnetic field around the conductive medium. The system produces an eddy current that heats the conductive medium. Also described are methods of heating using the heater and/or a reactor system.

Abstract: An induction heating system includes a housing, a heating surface, a first power inverter disposed within the housing, a second power inverter disposed within the housing, a first plurality of working coils, and a second plurality of working coils. The first plurality of working coils is connected in series. The first plurality of working coils is disposed within the housing and electrically coupled to the first power inverter. The second plurality of working coils is connected in series. The second plurality of working coils is disposed within the housing and electrically coupled to the first power inverter. The first plurality of working coils and the second plurality of working coils are configured to receive power from the first power inverter and the second power inverter, respectively, to produce magnetic fields that interact with a ferrous material of cooking vessels or of the heating surface to generate heat in the ferrous material.

Abstract: A method for improving uniformity of an electromagnetic field inside a static microwave resonant cavity is provided. The overlap between a nodal point in one mode and an antinodal point in another node inside a microwave resonant cavity is realized by using two different types of anisotropic media, thereby improving distribution uniformity of an electromagnetic field inside a static resonant cavity. The method can reduce the complexity of cavity mechanisms of a microwave oven having a turntable and a flat panel microwave having an electromagnetic stirrer and improve static microwave treatment uniformity, thereby promoting the application of high-temperature and high-power microwave treatment in the fields such as microwave sintering, microwave smelting, and microwave chemical industry.

Abstract: A microwave heating cavity includes a metal shell, a heating sleeve, a dielectric medium, an antenna bracket, a ceramic rod and a metal wire. The metal shell is provided with a middle cavity extending through the metal shell and including a first mounting cavity, a concave air cavity and a second mounting cavity. The heating sleeve is mounted in the first mounting cavity. An accommodating cavity is arranged in the heating sleeve, in which the dielectric medium is arranged. The antenna bracket is mounted in the second mounting cavity. The ceramic rod is mounted on the antenna bracket. The ceramic rod extends into the accommodating cavity and is in contact with the dielectric medium. The metal wire is spirally wound around the ceramic rod and is configured to be connected with an external power.

Abstract: Disclosed is the use of electric arc furnace flue dust and materials that are recovered from the flue dust of electric arc furnaces (EAF) used in the production of ferroalloys or steel from scrap metals, as electrode materials in electrochemical applications such as energy storage.

Abstract: A radio frequency (RF) heating system and process for rapidly and uniformly heating a plurality of articles on a convey line.

Abstract: Methods and systems are provided for, applying RF power as part of an RF treatment. The RF power may be applied until a first target temperature is reached, wherein the first target temperature is less than a final target temperature. Responsive to the reaching the first target temperature, application of the RF power may be varied via a feedback control loop until final target temperature is achieved. The application of the RF power may be paused responsive to determining that a temperature spread is greater than a threshold.

Abstract: A self-baking electrode includes a cylindrical shroud having a longitudinal central axis A. The shroud is made of an electrically-conductive material and disposed vertically on top of a vat of the furnace over one length of the self-baking electrode. The electrode includes a central column disposed within the shroud, substantially aligned on the longitudinal axis A. The central column is suspended from a device independent of the shroud such that the central column is adapted to slip in vertical translation within the shroud and a crude carbonaceous paste disposed around the central column in a top portion of the shroud. The paste is softened and baked under an effect of heat into a stiff carbonaceous paste sticking to the central column in a bottom portion of the shroud. The central column includes a series of electrically-conductive carbonaceous elongate elements. The carbonaceous elongate elements are flexible.

Abstract: Disclosed is an apparatus and methods for sintering particulate to make a workpiece.

Abstract: An aerosol-generating device may include a housing defining at least one internal compartment. The housing may be waterproof. The aerosol-generating device may further include a power supply, an electric heater, and/or a haptic feedback device. Each of the power supply, electric heater, and/or haptic feedback device may be positioned within one or more of the at least one internal compartment.