Siemens Aktiengesellschaft

Basf Se Corporation

Siemens Energy Global Gmbh & Co. Kg

Siemens Gamesa Renewable Energy A/s

Vladimir Danov

Werner Hartmann

Bernd Gromoll

Andreas Schröter

Norbert Mronga

Alexej Michailovski

Imme Domke

Wolfgang Krieglstein

Theodoros Papadopoulos

Till Andreas Barmeier

Andreas Koch

Dirk Koschnitzke

Victor Ustinov

Henrik Stiesdal

Hartmut Hibst

Klaus Büttner

Dirk Diehl

Erich Schmid

Reinhold Rieger

Heinz Schmidt

Stefan Stegmeier

Uwe Lenk

Jürgen Hofmann

Olaf Rehme

Martin Schäfer

Konrad Brandl

Stephan Neugebauer

Jochen Schaefer

Jochen Schafer

Sebastian Thiem

Florian Reissner

Jochen Schäfer

Stefan Kern

Martin Kautz

Klaus Dennerlein

Stefan Blendinger

Manfred Wohlfart

Volker Müller

Patryk Piotrowski

Florian Schwarz

Stefan Becker

Florian Reißner

Hermann Schwarz

Jochen SCHÄFER

Andreas Käßer

Andreas Macher

Florian REIßNER

Volker MÜLLER

Various embodiments include a system for providing heat, cold, and/or electric power comprising: a first and a second compressor; a first and a second expander; and a first heat store and a second heat store. An output of the first compressor is thermally coupled to a first input of the first heat store and to a second input of the second heat store. An output of the second compressor is thermally coupled to a first input of the second heat store and to a second input of the first heat store. An input of the first expander is thermally coupled to a first output of the first heat store and to a second output of the second heat store. An input of the second expander is thermally coupled to a first output of the second heat store and to a second output of the first heat store.

Apparatus and method for providing heat, cold and/or electric power

A heat reservoir including a housing, first reservoir elements for storing thermal energy, and an inlet port is provided. The first reservoir elements are arranged in the housing. The inlet port is coupled to the housing in such a way that a working fluid can flow into the housing through the inlet port. The inlet port is provided with an inlet orifice through which the working fluid can flow from the surroundings of the heat reservoir into the inlet port. The inlet port includes a diffusor portion the cross-section of which increases in the direction running from the inlet orifice to the housing.

Heat accumulator comprising a diffuser portion

The present disclosure relates to combined gas and steam power plants. Various embodiments may include methods for operating such plants, such as: generating hot steam with an exhaust gas of a gas turbine; driving a generator with the steam; diverting at least a part of the generated steam and storing the diverted steam in a steam accumulator; then, discharging at least a part of the steam stored in the steam accumulator from the steam accumulator; heating the steam discharged from the steam accumulator with heat released during an exothermic chemical reaction; and feeding the heated steam to drive the turbine device.

Method for operating a combined gas and steam power plant with steam heated by an exothermic chemical reaction

A thermal energy storage is provided comprising a housing, a thermal energy storage structure arranged within the housing, the thermal energy storage structure comprising thermal energy storage elements and a plurality of dividing elements, the plurality of dividing elements being arranged such that the thermal energy storage elements are divided into a plurality of layers, a fluid inlet, the fluid inlet being in fluid communication with the housing and adapted to receive a working fluid and provide a flow of working fluid towards the housing, and a convection reducing structure arranged adjacent the thermal energy storage structure at a side of the thermal energy storage structure that faces the fluid inlet. Furthermore, a method of storing thermal energy and a steam power plant for producing electrical energy are described.

Thermal energy storage with reduced internal natural convection

A hollow body composed of an electrically conducting material and extending longitudinally along an axis is connected at one axial end to a connection element composed of an electrically conducting material and extending along the axis. A first thread is provided on the hollow body at the one axial end running about the axis, while a second thread is provided on the connection element running about the axis, so that the second thread is mechanically supported by the first thread. An insulation-material extent between the first thread and the second thread electrically isolates the hollow body from the connection element.

Mechanical-load bearing and electrically isolating mechanical connection

An induction device and method for introducing an inductor loop into a rock formation to heating an oil reservoir in the rock formation to extract oil extraction, wherein a first inductor bore is chilled for introducing a first inductor arm, a second inductor bore is drilled for introducing a second inductor arm, at least one intersecting bore is drilled to create a first area of intersection with the first inductor bore and a second area of intersection with the second inductor bore, the first inductor arm is introduced into the first inductor bore and the second inductor arm is introduced into the second inductor bore, and at least one connecting arm is introduced into the intersecting bore for electrically conductive connection to the two inductor arms in the two areas of intersection so as to form the inductor loop.

Method for introducing an inductor loop into a rock formation

A heat accumulator for storing thermal energy may include a container having a horizontally extending longitudinal axis, and a thermal storage material. The container may have a first opening for inflow and/or outflow of a fluid, a second opening offset vertically opposite the first opening, and at least one fluid-impermeable plate which is inclined against an inflow and/or an outflow direction of the fluid.

Heat store container with inclined plates for improved temperature distribution

The present disclosure relates to thermochemical heat storage units. The teachings thereof may be embodied in systems and methods for operating, including charging and discharging, a thermochemical heat storage unit. For example, a method for operating a thermochemical heat storage unit may include: producing a first steam and feeding it to a heat exchanger; partially condensing the steam with release of its thermal energy, in the heat exchanger; subsequently pressurizing water condensed from the steam; feeding the pressurized water to the heat exchanger; evaporating the water into a second steam; and storing at least a portion of the second steam in a steam storage unit.

Thermochemical heat storage unit

An electrical component may include an electrically conductive element and electrical insulation that at least partially surrounds the element and without contact. A heat pipe may be surrounded by the insulation at least at one end and may partially protrude from the insulation, wherein the part of the heat pipe protruding from the insulation protrudes closer to the central element than the insulation.

Electrical component having an electrically conductive central element

An electric generator, in particular a power station generator is provided, having at least one inlet and an outlet for at least one hollow conduit for receiving a coolant fluid. The hollow conduit is situated in or on a rotor and/or a stator/stator bars and/or a shaft and/or a housing of the electric generator wherein the hollow conduit is set up as an evaporator for receiving thermal energy from the electric generator via the coolant fluid. The cooling process allows the efficiency of the electric generator to be increased.

Cooling system for electric generators

An electric machine has a base body with a stator, a rotor shaft mounted in the base body, and a heat exchanger. Cooling ducts for a liquid cooling medium are arranged in the base body. The rotor shaft is embodied as a hollow shaft through which the liquid cooling medium can flow. The heat exchanger dissipates heat contained in the liquid cooling medium to the surroundings of the electric machine. The heat exchanger, the rotor shaft and the cooling ducts are fluidically connected in series, producing a closed circuit for the liquid medium. A feed element is arranged to co-rotate with the rotor shaft. The feed element is inserted in the closed circuit for the liquid cooling medium to forcibly circulate the liquid cooling medium in the closed circuit as the rotor shaft for the liquid cooling medium rotates.

Electric machine with enclosed, autonomous cooling medium circuit

The invention relates to an electric machine () comprising a stator () and a rotor (), wherein the rotor () comprises a hollow shaft (), wherein a closed hollow space () is formed by means of the hollow shaft (), wherein the closed hollow space () is provided for receiving a cooling agent, wherein a three-dimensional transport structure () is provided in the closed hollow chamber () for transporting the cooling agent. The three-dimensional structure can, for example, be produced by means of applying an adaptive material.

Electrical machine

An assembly for separating magnetisable particles from a liquid may include a tubular reactor through which the liquid can flow and which includes a first region with at least one permanent magnet and a second region with at least one electromagnet. The first and the second region are arranged one behind the other along a longitudinal axis of the tubular reactor.

Assembly and method for separating magnetisable particles from a liquid

A device for separating ferromagnetic particles from a suspension has a tubular reactor and a plurality of magnets which are arranged outside the reactor, the magnets () being movable along at least a part of the length of the reactor () up to the vicinity of a particle extractor () by means of a rotary conveyor ().

Device for separating ferromagnetic particles from a suspension

A device for separating ferromagnetic particles from a suspension may include a tubular reactor through which the suspension can flow and which has an inlet and an outlet, and a means for generating a magnetic field, which means is designed to generate a magnetic travelling field which acts on the reactor.

Growing community of inventors

Erlangen, Germany

Vladimir Danov