The present disclosure relates to a heating device of an ionized water arrangement structure surrounding a fluid and a heat exchange region. To this end, one aspect of the present disclosure may include a pipe part formed to allow a fluid to be disposed therein, a body part formed to allow an electrolyzed water to be disposed therein to overlap the fluid, and formed to surround at least one region of the pipe part, and at least one electrode for heating the electrolyzed water inside the body part.

Apparatus and methods for generating thermal energy from a pulsed DC electric power source utilizing pairs of electrodes disposed in a water medium. Electric pulses are provided at a frequency up to 20 MHz. Efficiencies are obtained when multiple pairs of electrodes are powered by the pulsed DC electric power source. The electrodes may be rods, plates, cylinders, or other useful shapes. The electrodes exposed to water may be a metal or alloy of nickel, platinum, palladium, or tungsten. The DC pulse generator is electrically connected to the electrodes to provide a source of pulsed direct current electric power. The input polarity to the electrodes may be periodically reversed or alternated between the anode and cathode polarity to limit erosion/electroplating of electrode material.

An ohmic heater for heating a conductive fluid has a plurality of electrodes mounted to a structure with spaces between the electrodes. The electrodes (14) are selectively connect to poles (38, 40) of a power supply, so that some electrodes are connected to the poles and others remain isolated from the poles. Shunting switches are provided for connecting two or more of the isolated electrodes to one another. The shunting switches allow formation of a large number of different connection schemes having a variety of different electrical conduction paths through fluid in the spaces and a variety of resistances between the poles with relatively few electrodes and spaces.

A water heater using a planar heating element according to the embodiment of the present invention comprises a planar heating pipe coated with a planar heating material; a hot water tank including an upper surface coupled with the planar heating pipe where a first hole and a second hole are formed, a side surface surrounding an outside of the planar heating pipe where an outlet is formed, and an open lower surface; a first header provided at the upper surface to form a first housing; and a second header provided at the other end of the planar heating pipe and the open lower surface to form a second hosing where an inlet coupled with the other end of the planar heating pipe is formed. Wherein the first housing is a space defined by an inner surface of the first header and the upper surface of the hot water tank, and the second housing is a space defined by an outer surface of the planar heating pipe, an inner surface of the hot water tank, and an inner surface of the second head.

An ohmic heater for heating a conductive fluid includes electrodes (14) and spaces (20) between the electrodes. A controller (52) selectively connects the electrodes to a power supply (36) during a succession of actuation intervals so as to form conduction paths, each including two live electrodes connected to different electrical potentials, and the fluid in one or more spaces. The controller models fluid passing through the spaces as a series of finite elements moving through the spaces. Before each actuation interval, the controller estimates the expected results of actuating various possible conduction paths, including the estimated temperature of the fluid in the conduction paths and the estimated currents passing through the live electrodes. The controller selects a set of conduction paths for which the estimated results meet a set of constraints, and actuates only the selected conduction paths during the actuation interval.

A liquid heater such as a direct electrical resistance liquid heater having multiple flow channels is provided with a temperature-sensing element in the form of a wire extending across numerous channels, preferably all of the channels, near the downstream ends of the channels. The resistance of the wire represents the average temperature of the liquid passing through all of the channels, and hence the temperature of the mixed liquid exiting from the heater. A bubble suppressing structure is provided in the vicinity of the wire.

The invention provides a heater arrangement and method for heating a liquid, wherein the heater comprises a heating element, wherein the method comprises (i) heating the liquid in the heater wherein the heating element is in contact with the liquid, and (ii) applying a potential difference between the heating element and a counter electrode, wherein the potential difference has an AC component whereby the potential difference varies with an AC frequency in the range of 0.01-100 Hz and wherein the potential difference is applied with a cycle time, wherein the potential difference has a sign during a first part of the cycle time that is opposite of the sign of the potential difference during a second part of the cycle time, and wherein during one or more of the first part of the cycle time and the second part of the cycle time, the potential difference temporarily changes sign.

Provided is a cooking appliance having an improved structure in which superheated steam is capable of being used during a cooking operation. The cooking appliance supplies superheated steam while food is cooked, and includes: a main body, a front of which is opened and in which a cooking compartment is disposed; a heating chamber disposed in the main body to be in communication with the cooking compartment; a steam generator disposed to generate steam sprayed into the heating chamber; and a convection heater disposed in the heating chamber to heat the heating chamber and the cooking compartment. The convection heater heats steam discharged from the steam generator, and the steam discharged from the steam generator, in a superheated steam state, is sprayed into the heating chamber and supplied into the cooking compartment.

The present invention discloses a film type liquid heater and a uniform heating method thereof. End fixation plates are arranged at two ends of a barrel. A heating pipe is arranged in the barrel. Pipe ports run through the two end fixation plates, respectively. Connecting pipes are arranged in the pipe ports. Sealing connection components are arranged at inner ends of the two connecting pipes. A heating film layer is coated outside the heating pipe. Electrode layers are connected left and right sides of the heating film layer, and the electrode layers are connected to an external power supply. An insulating layer is coated outside the heating film layer. A flow splitting column is fixedly connected in the heating pipe. A heating chamber is formed between an inner side of the heating pipe and the flow splitting column. Flow splitting grooves are formed at left and right ends and on the inner side of the flow splitting column. Two outer ends of the flow splitting grooves are communicated with the connecting pipes, and the flow splitting grooves are communicated with the heating chamber. The heating film layer is electrified to generate heat. The heat is conducted inward to the heating pipe and the flow splitting column, and conducted outward to the barrel. Liquid flows into the heating chamber through the connecting pipes and the flow splitting grooves, so that the heating uniformity of the liquid flow flowing through the heating chamber is improved.

A system and method for heating a vehicle component is provided and comprises one or more cells for retaining a fluid, each cell including one or more electrode pairs positioned therein. The one or more cells are arranged along a flow path including an inlet to and an outlet from the one or more cells. A controller is provided which is configured to: regulate the flow of the fluid from the inlet to the one or more cells; determine at the one or more cells the electrical conductivity, or specific conductance, of the fluid; determine from the electrical conductivity, or specific conductance, of the fluid a voltage to apply from a high voltage battery, or an external power source located outside of the vehicle, across the one or more electrode pairs at a current sufficient to heat the fluid therein; and pass the current from the one or more electrode pairs to the fluid to produce a heated fluid, wherein the heated fluid transfers heat to one or more vehicle components via the outlet.