An electromagnetic induction continuous-flow water heater, in particular an automatic beverage vending machine is provided. The heater includes: a tubular body having a longitudinal axis and at least one inlet, configured to receive water to be heated and to feed it, in use, into the tubular body, and an outlet, through which the heated water flows out of the tubular body; and an electrical winding wound around the tubular body and electrically powerable to generate an electromagnetic induction field. The tubular body is made of an electrically conductive material heated by electromagnetic induction. The heater further includes an insert housed inside the tubular body and extending along the longitudinal axis with the tubular body and the insert delimit at least between an external surface of the insert and an internal surface of the tubular body, a helical flow channel for the water, which extends helically around the longitudinal axis.

A method and apparatus for induction heating or vaporization of water, oil, or other fluids. An induction heater system includes a ferrous heat tube, an induction coil extending around the ferrous heat tube, an induction drive, and a controller to regulate the operation of the induction drive or a fluid supply or both, to heat or vaporize the fluid.

A method and apparatus for induction heating or vaporization of water, oil, or other fluids. An induction heater system includes a ferrous heat tube, an induction coil extending around the ferrous heat tube, an induction drive, and a controller to regulate the operation of the induction drive or a fluid supply or both, to heat or vaporize the fluid.

A magnetic induction heating system is described. The heating system includes a receptacle and a substrate positioned within the receptacle. The substrate includes ferrous material and forms a cavity that can be filled with fluid, such as water or other liquid. An induction coil at least partially encompasses the substrate. A controller provides alternating current to the induction coil. The alternating current in the induction coil induces an electromagnetic field that creates heat in the substrate. The heat in the substrate heats the fluid. The heating system can further include valves on either end of the substrate that enable fluid to move between the cavity and a chamber that is formed by the receptacle.

A fluid induction heating system includes a heating apparatus having an outer shell and an inner tube. The outer shell may be insulative while the inner tube may be conductive. A fluid chamber may be defined within the outer shell. The area between inner tube and the outer shell may be an outer portion of the fluid chamber, while the area within the inner tube may an inner portion of the fluid chamber. The heating system may also include an electrical system, including electrical wiring around or near the exterior of the outer shell. The heating system may be used in a variety of fluid heating situations, such as pools, heaters, desalination, and energy generation.

A fluid conditioning assembly having a body constructed of an insulating material. An inner housing is configured within the body defining a spiral passageway in communication with an inlet for redirecting a fluid flow through an outlet. A shaft extends within the body and rotatably supports a conductive and fluid redirecting plate or like component positioned within the inner housing. At least one magnet or electromagnet is positioned within the inner housing in proximity to the rotating component, causing thermal conditioning of the fluid flow resulting from creation of high frequency oscillating magnetic fields at a given frequency range, the thermally conditioned fluid flow being redirected through the outlet. Additional features include the ability to generate electricity in a cogeneration application of the assembly. Conventional elements can also be incorporated into the assembly for operating simultaneously or being deactivated/turned off after an initial startup period.

An apparatus (112) for heating a fluid is proposed. The apparatus (112) comprises at least one electrically conductive pipeline (120) for receiving the fluid at least one electrically conductive coil (110) at least one AC voltage source (114), which is connected to the coil (110) and is designed for an AC voltage to be applied to the coil (110).

The coil (110) is designed for generating at least one electromagnetic field by applying the AC voltage. The pipeline (120) and the coil (110) are arranged in such a way that the electromagnetic field of the coil (110) induces in the pipeline (120) an electrical current, which warms up the pipeline (120) by Joulean heat, which is produced when the electrical current passes through conducting pipe material, for heating the fluid.

A cooking device and a control method thereof is provided which heating a curved area to a higher temperature than a flat area of a cooking area where food is cooked. A cooking apparatus includes a cooking unit having one side in which a first cooking region and a second cooking region distinguished from the first cooking region are provided; a heating unit configured to heat the cooking unit; and a controller configured to control the heating unit to heat the first cooking region to a first temperature and to heat the second cooking region to a second temperature different from the first temperature.

A fluid conditioning system having a housing within a fluid inlet and a fluid outlet. A rotating shaft extends within the housing and secures a conductive component exhibiting fluid flow redirecting vanes for communicating an inlet fluid flow with an outlet fluid flow. Magnets or electromagnets are arranged in a stationary array within the housing in proximity to the rotary conductive component and, upon rotating the conductive component relative to the magnetic plates, thermal conditioning of the fluid flow is generated from creation of high frequency oscillating magnetic fields and which is conducted through the rotating component for outputting through the outlet of the housing. Peltier or other thermoelectric generator elements can be incorporated into the housing. The conductive components or plates can include any of a number multi-metal/multi-alloy plate configurations.

A fluid thermal conditioning (heating/cooling) system including a housing containing a fluid holding tank and having an inlet pipe and an outlet pipe. A drive shaft rotatably supports either of a conductive plate or a plurality of spaced apart magnetic or electromagnetic plates positioned within the housing. The conductive plate can be reconfigured as an elongated conductive component supported within the housing and including a plurality of individual plates which alternate in arrangement with axially spaced and radially supported magnetic/electromagnetic plates. Upon rotation of the shaft, an oscillating magnetic field is generated for thermally conditioning the fluid.