19results about "Steam accumulators" patented technology

The invention relates to a steam accumulator power plant (01) having a water-steam circuit. The latter has, in a direct or indirect sequence, a water tank (02), an evaporator (04), a steam pump (05) which (05) allows a pressure of between 15 bar and 50 bar at the outlet, a desuperheater (06), a steam accumulator (07), a steam heater (08), a steam turbine (09), and a condenser (10). For heat storage, heat transfer from the steam to a heat storage medium takes place in the desuperheater and heat transfer from the heat storage medium to the steam takes place in the steam heater.

The utility model discloses a salt cavern gravity compressed air energy storage system which comprises a salt cavern, a vertical shaft is vertically arranged at the top of the salt cavern and communicated with the ground surface, a sealing film is arranged on the side wall of an inner cavity of the salt cavern and divides the salt cavern into a water storage cavity and an air storage cavity, and the bottom of the air storage cavity is connected with one end of an air pipe. A piston is arranged in the vertical shaft, a gravity block is arranged at the top of the piston, a water pipe communicated with the water storage cavity is arranged at the bottom of the water storage pool, and a water conservancy generator set is arranged on the water pipe. Liquid gravity is matched with salt cavern gas storage, liquid can be matched with the irregular shape of a salt cavern, construction is reduced, energy density is increased, meanwhile, sealing film damage caused by contact friction between a sealing film and the surface of the gravity block is avoided, and the service life of the sealing film is prolonged; and the hydraulic generator set can synchronously generate power, so that the energy storage efficiency is improved.

The invention relates generally to methods and apparatus for operation of hydrogen fueled electric power plants integrated with thermal energy storage. It is an object of this invention to reduce the cost of providing reliable electricity from variable renewable energy sources by storing excess renewable energy and using the stored renewable energy to reduce the quantity of fuel required, to reduce the cost of producing hydrogen fuel by electrolysis, and to produce and store hydrogen at the power plant to eliminate the cost of transporting hydrogen and the need to upgrade natural gas pipelines and pipeline compressors.

The invention describes a saturated steam storage system for storing water vapor, comprising a container (2) in which water can be stored in its condensed state and as water vapor during operation, a charging device (4) for charging the saturated steam storage system with water vapor, and a discharging device (6) for extracting water vapor from the saturated steam storage system, as well as a method for operating a saturated steam storage system. To improve the discharge capacity without incurring significant disadvantages regarding space requirements, the invention provides a distribution device, in particular comprising at least one nozzle (16), for atomizing water in an upper region of the container (2), or introduces condensed water into an upper region of a container (2).

Apparatus comprising a plasma generating and controller and methods of controlling a plasma generating vessel are disclosed. The apparatus 100 comprises a plurality of plasma generating vessels 1a,b,c

This invention relates to a refrigeration system designed as Rotary Supercharger Ejector Refrigeration System to improve the coefficient of performance and to reduce mechanical complexity. The design ensures that the working fluid performs expansion work as it passes through the generator. On the other hand, it eliminates the need for subcooling the liquid entering the pump. The design allows conversion of the high-speed kinetic energy from the ejector's outlet stream into recoverable potential energy. Consequently, the cycle closely approaches the ideal cycle. The rotation of coils increases convective heat transfer between coils and the atmosphere and eliminates the need for a blower as well as a complex mechanical pump. In addition to coil-air heat exchange, the system can be thermally coupled with hot rotating bodies to absorb waste heat and generate effective cooling.

An energy transformation and storage plant comprises a main circuit for a working fluid other than atmospheric air. The main circuit connects a storage device (205), a compression unit, a thermal accumulator (100, 210), a reservoir (209) and an expansion unit and is configured to operate the plant in an energy storage configuration or in an energy discharge and generation configuration by a displacement of the working fluid between the storage device (205) and the reservoir (209) through the main circuit and via a cyclic thermodynamic transformation of the working fluid. The plant further comprises an auxiliary circuit (1) which connects the main circuit and / or the storage device (205) and / or the compression volume of the compressor (203) and / or the expansion volume of the expander (202) with at least one portion of the compression unit and / or of the expansion unit, so as to control a temperature and / or a pressure of this portion through the same working fluid.

There is disclosed a thermal energy storage and supply apparatus (100) comprising: a pressure vessel (110); a heat exchanger (120); a circulation path (130) extending from a steam outlet (114) of the pressure vessel to a condensate inlet (112) of the pressure vessel, via the heat exchanger. The pressure vessel is configured to store primary process water as saturated liquid water and steam at a storage pressure of at least 0.5 MPa. The apparatus comprises an electrically-powered heater (140) configured to heat liquid primary process water stored in the pressure vessel to vary a storage pressure within the pressure vessel, and a valve arrangement disposed along the circulation path for controlling flow of primary process water through the heat exchanger along the circulation path. A controller (160) and / or the valve arrangement is configured to selectively control flow of primary process water through the heat exchanger using the valve arrangement, to meet a thermal energy demand associated with the flow of secondary water.

An energy system having a) one or more catalyst sources which store a catalyst; b) one or more water sources which store water; c) one or more heat sources which store a heat storage medium; d) one or more reaction chambers into which the water, the catalyst, and the heat storage medium are introduced, which are configured for an exothermic reaction between the catalyst and the water to take place while in the presence of the heat storage medium, and in which steam is generated from the exothermic reaction; and f) one or more turbines downstream of the one or more reaction chambers which are adapted to be driven by the steam generated within the one or more reaction chambers.

The invention relates to a device (100) for generating electrical and / or mechanical energy using an ORC system which has a working medium circuit (10) for a working medium, wherein the working medium circuit (10) comprises a working medium evaporator (11), an expansion machine (19) operated using working medium vapour from the working medium evaporator (11), and a condenser (12). A source medium flow can flow through the working medium evaporator (11) on a working medium evaporator primary side (111) in order to transfer thermal energy contained in the source medium flow to the working medium and to thereby at least partially evaporate the working medium. The working medium vapour is fed to the expansion machine (19) from the working medium evaporator (11) at a predetermined degree of saturation. The invention also relates to a method for operating a working medium circuit (12) using an ORC system.

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 invention relates to a device (100) for generating electrical and / or mechanical energy with an ORC system, which has a working fluid circuit (10) for a working fluid, wherein the working fluid circuit (10) comprises a working fluid evaporator (11), an expansion machine (19) operated with working fluid vapor from the working fluid evaporator (11), and a condenser (12). A source medium flow is permeable to the working fluid evaporator (11) on a primary side (111) to transfer thermal energy contained in the source medium flow to the working fluid and thereby at least partially evaporate the working fluid. The working fluid vapor is supplied to the expansion machine (19) from the working fluid evaporator (11) at a predetermined degree of saturation. The invention further relates to a method for operating a working fluid circuit (12) with an ORC system.

The invention relates to a steam generation plant (1) comprising at least one steam generator (2) and a compressor (4) with several successive compressor stages (10, 11, 12), characterised in that a thermal energy storage system (5) is provided which is designed to selectively extract steam at several different pressure levels from the compressor (4) after several compressor stages (10, 11, 12), in particular after each compressor stage (10, 11, 12), to store extracted steam at several different pressure levels and to selectively supply stored steam to the compressor (4) at a suitable pressure level before and / or after several compressor stages (10, 11, 12), and in that the thermal energy storage system (5) is designed to selectively supply stored steam to the compressor (4) at a suitable pressure level after the last compressor stage (12). The invention further relates to a method for operating a steam generation plant (1) of this kind.

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.

Systems, methods, and apparatuses for producing high-pressure steam are provided. A compressor train includes a series of at least two compressors, and inlet, and an outlet providing high-pressure steam. A flash vessel structure includes a series of at least two flash vessels, a terminal flash vessel at one end of the flash vessel structure, and a vapor outlet of the terminal flash vessel fluidly coupled to the inlet of the compressor train. Vapor outlets of a remainder of the series of at least two flash vessels are fluidly coupled between compressors of the series of at least two compressors. A steam recirculation manifold includes a vapor inlet fluidly coupled to the compressor train or a source of high-pressure steam. Each respective vapor outlet of the steam recirculation manifold is fluidly coupled to a vapor inlet of a corresponding flash vessel in the flash vessel structure.

The energy conversion and storage plant comprises a main circuit for a working fluid other than the atmosphere. The main circuit connects a storage device (205), a compression unit, a heat accumulator (100, 210), a reservoir (209), and an expansion unit, and is configured to operate the plant in an energy storage configuration or in an energy release and generation configuration by the movement of the working fluid between the storage device (205) and the reservoir (209) through the main circuit, and by the periodic thermodynamic conversion of the working fluid. The plant further comprises an auxiliary circuit (1) which connects the main circuit and / or the storage device (205) and / or the compression volume of the compressor (203) and / or the expansion volume of the expander (202) to at least a portion of the compression unit and / or expansion unit, and controls the temperature and / or pressure of this portion with the same working fluid.

The invention describes a saturated steam storage system for storing water vapor, comprising a container (2) in which water can be stored in its condensed state and as water vapor during operation, a charging device (4) for charging the saturated steam storage system with water vapor, and a discharging device (6) for extracting water vapor from the saturated steam storage system, as well as a method for operating a saturated steam storage system. To improve the discharge capacity without incurring significant disadvantages regarding space requirements, the invention provides a distribution device, in particular comprising at least one nozzle (16), for atomizing water in an upper region of the container (2), or introduces condensed water into an upper region of a container (2).