A heating cooking device includes a casing accommodating a heating furnace allowing a heating target to be located therein; a water storage tank; a hot vapor generation device connected with the water storage tank; a superheated vapor generation device heating hot vapor; a fan introducing superheated vapor into the heating furnace; and a superheated vapor discharge portion. The hot vapor generation device includes a first electric heater; and a first housing accommodating the first electric heater. A water level in the first housing matches a water level in the water storage tank. The superheated vapor generation device includes a second electric heater; and a second housing accommodating the second electric heater. At least a part of the second housing is located in an interior of the heating furnace. The hot vapor generation and the superheated vapor generation device are accommodated in the casing.

An energy storage power plant for harvesting electric energy, and suitable for converting electric energy into thermal energy is provided. The thermal energy can be temporarily stored in at least two thermal stores until demanded and retrieved to increase the energy content of water in a water circuit upon demand. The power plant has the at least two thermal stores, each has at least one converting device that allows electric energy to be directly or indirectly converted into thermal energy, the thermal stores being thermally chargeable by temporarily storing thermal energy, wherein one thermal store is for storing sensible heat and one thermal store is for storing latent heat; and at least one energy generating unit operated using the water in the water circuit, the energy content of the water having been increased by the temporary storage of thermal energy, in order to generate electric energy when operated.

Presented are methods and apparatus for the increase of heating efficiency by the control of Reynolds number inversion in high temperature heating devices through the inclusions of flow modification devices precisely positioned in the hot fluid flow of the high temperature fluid heating device. Such flow modifiers allow for the internal temperature of the heated fluid to more closely reflect the fluid output temperature.

The present invention relates to a system and a method for providing steam. In particular, the present invention relates to a steam delivery system comprising a thermal energy storage apparatus for heating a flow of feedwater to produce steam at a predetermined temperature and/or a predetermined pressure.

The present invention relates to a system and a method for providing steam. In particular, the present invention relates to a steam delivery system comprising a thermal energy storage apparatus for heating a flow of feedwater to produce steam at a predetermined temperature and/or a predetermined pressure.

A superheated-steam generating method that can quickly generate superheated steam and can prevent the superheated steam from reaching an excessively high temperature is disclosed. The superheated-steam generating method includes: determining a heater-temperature command value for minimizing a temperature difference within a first heater-temperature allowable range set for a first time segment; increasing the first heater-temperature allowable range by a predetermined upward shift amount to determine a second heater-temperature allowable range when the measured value of the temperature of the steam in the first time segment is smaller than the target temperature of the superheated steam and the temperature difference is larger than a first threshold value; and determining the heater-temperature command value for minimizing the temperature difference within the second heater-temperature allowable range set for a second time segment.

A power plant system includes a set of gas turbines with a first gas turbine and a second gas turbine operating. The first gas turbine and the second gas turbine are configured to generate energy. The power plant system includes a first OTC unit associated with the first gas turbine, where steam is supplied from the first OTC unit. The power plant system includes a second OTC unit associated with the second gas turbine, where steam is supplied from the second OTC unit. Further, the power plant system includes a HRSG unit associated with a second gas turbine, where the steam is supplied to the HRSG unit from the first OTC unit and the second OTC unit to generate specific steam. The power plant system includes a set of steam turbines generates energy based on a supply of the specific steam from the HRSG unit to the set of steam turbines.

A power plant system includes a set of gas turbines with a first gas turbine and a second gas turbine operating. The first gas turbine and the second gas turbine are configured to generate energy. The power plant system includes a first OTC unit associated with the first gas turbine, where steam is supplied from the first OTC unit. The power plant system includes a second OTC unit associated with the second gas turbine, where steam is supplied from the second OTC unit. Further, the power plant system includes a HRSG unit associated with a second gas turbine, where the steam is supplied to the HRSG unit from the first OTC unit and the second OTC unit to generate specific steam. The power plant system includes a set of steam turbines generates energy based on a supply of the specific steam from the HRSG unit to the set of steam turbines.

A superheated steam generator in which the amount of generated steam is controlled by the amount of electric power includes: a steam generation unit that generates steam from water by inductively heating a first conductor pipe having a spiral shape; a superheated steam generation unit that generates superheated steam by inductively heating a second conductor pipe having a spiral shape; a control unit that controls an amount of steam to be generated by the steam generation unit based on an amount of electric power to be supplied to the steam generation unit; and a safety device that prevents damage to the steam generation unit or the superheated steam generation unit based on a water pressure in the steam generation unit, a pressure or a temperature of the steam in the steam generation unit, or a pressure or a temperature of the superheated steam in the superheated steam generation unit.

A superheated steam generator that controls the amount of generated steam, on the basis of the amount of electric power, includes: a steam generation unit that generates steam by inductively heating a spiral-shaped first conductor pipe; a superheated steam generation unit that generates superheated steam by inductively heating a spiral-shaped second conductor pipe; a control unit that controls an amount of generated steam based on an amount of supplied electric power; and a safety device that prevents damage to the steam generation units, based on a pressure or a temperature of the steam, in which the first conductor pipe has a first winding portion that is a spiral winding; the second conductor pipe has a second winding portion that is a spiral winding; and the safety device is provided to the first winding portion, or to a communication pipe part connecting the first and second winding portions.