Alstom Technology Limited

E2s Power Ag

Ansaldo Energia IP UK Limited

Sasha Savic

Carlos Jimenez Haertel

Peter Jansohn

Alexander Ni

Stefan Oesterle

Carsten Reumschuessel

Juergen Gerhard Hoffmann

Marco Micheli

Hanspeter Zinn

Rolf Dittmann

Thomas R Ruck

Vladimir Vassiliev

Wilfried Rick

Sergey Pancheshnyi

Wifried Rick

Erich Herold Kisi

Dylan Cuskelly

Torsten Strand

Flavio Ferrari

Daniel Klaesson

Thomas Palkovich

Daniel Glesti

Jürgen Hoffmann

Carsten REUMSCHÜSSEL

Härtel Carlos Jimenez

Carlos Jimenez Härtel

An energy storage device is provided with at least one energy storage unit (). The energy storage unit () comprises a thermal storage element () made of a solid material and an electrical heating device () for heating the thermal storage element (). According to a first concept, the electrical heating device () is adapted to heat the thermal storage element () by means of generating an electric current within the material of the thermal storage element (). According to a second concept, an electric gas insulation () is provided, in order to electrically insulate the electrical heating device () from the thermal storage element (). Furthermore, a method for storing energy by means of such an energy storage device is provided.

Energy storage device and method for storing energy

A method of operating a delivery apparatus and a delivery apparatus are disclosed for the continuous delivery of a liquid. The method and the apparatus are suitable in particular for use in a water injection system for injecting water into a main flow of a gas turbine. The delivery apparatus includes a plurality of delivery devices connected parallel to one another. In a first method step, the delivery devices of the delivery apparatus are assigned to at least two delivery device groups. The delivery device groups with the respectively assigned delivery devices are then switched to the active state from the rest mode in a rolling manner in time segments in order to deliver the liquid mass flow. In each case at least one delivery device is therefore operated in the rest mode in a rolling sequence per time segment.

Method and apparatus for delivering a liquid

A system for the atomization of liquid is arranged on the intake duct of a gas turbo set. This atomization system comprises a number of nozzle tubes with atomizer nozzles, switching valves for selective action upon the nozzle tubes by liquid and a pump for conveying the liquid to be atomized. According to the invention, the pump is connected to a variable-speed drive. The switching valves are preferably designed as proportional valves. In a corresponding regulating circuit, this makes it possible to limit pressure gradients in the atomization system and consequently to avoid hammers.

Method for injecting a liquid mist into an intake duct

The present disclosure relates to a method for improving aerdynamic stability of a working fluid flow through a compressor of a turbomachine, in particular through a compressor of gas turbine used for power production, particularly against rapidly changing aero speed of the compressor. The method comprises to introduce a first water mass flow to the working fluid flow of the compressor. Furthermore, the disclosure relates to a turbomachine, in particular a gas turbine, which can be driven according to the above method.

Method for increasing the aerodynamic stability of a working fluid flow of a compressor

In a method of modifying a turbocompressor, the compressor blades are replaced by new compressor blades in such a way that the delivered mass flow of the compressor increases. At the same time, the capacities for blowing off during the start-up are increased.

Method of modifying a turbocompressor

A liquid atomizing arrangement comprises: a line system, at least one pressure atomizer nozzle, at least one line for the liquid to be atomized, and at least one first actuator for setting the atomizing supply pressure and/or the liquid mass flow through the atomizing arrangement. method of operating the liquid atomizing arrangement comprises the steps of measuring the mass flow flowing through the liquid atomizing arrangement, of measuring the atomizing supply pressure upstream of the pressure atomizer nozzle, and of acting upon the first actuator as a function of at least one of these measured values.

Method of operating an atomizing arrangement

A power plant comprises an air-breathing combustion engine having an air inlet and an inflow duct arranged upstream of the air inlet, as well as an atomization device arranged in the inflow duct. In a method for operating this power plant, a liquid is injected into the inflow duct in the atomization device. During the injection, at least the temperature of the atomization liquid which is to be injected upstream of the atomization device or the temperature in the inflow duct downstream of the atomization device is measured. One of these measured temperatures is used as control variable for control of the temperature of the atomization liquid.

Method for operating a power plant

A combined cycle power plant comprises a gas turbo group and a water/steam circuit A liquid atomization device is arranged, upstream of the compressor, in the intake duct of the gas turbo group. The liquid under pressure, which is intended to be injected into the compressor inflow, is branched off from the water/steam circuit.

Power plant

When operating an air-breathing engine, a liquid is injected in atomized form into an air intake duct of the engine. A measurement apparatus for determining the injected drop size or the drop concentration is arranged in or on the intake duct downstream of the location of the injection. These measured values are input into a control system, which controls suitable parameters of the injection apparatus in such a manner that the determined variables are controlled to desired values or into desired value ranges.

Method for operating an air-breathing engine

A method for operating a gas turbine installation () includes sucking in a gaseous medium () by the compressor () and compressed in the compressor space, a liquid medium () being injected into the gaseous medium (), so that a two-phase flow comprising a gaseous phase and a liquid phase is formed at least in a subregion of the compressor (). The gaseous medium () is then burnt with fuel () in a combustion chamber () to form hot gases (), and the hot gases () are expanded in a turbine (), the hot components of the gas turbine installation () being cooled by cooling air () of a cooling air system. A measurement is carried out to determine whether a liquid phase is present in a region of the compressor () and/or of the cooling air system.

Method for operating a gas turbine installation, and gas turbine installation

A burner () which is useful for operating a heat generator includes a first upstream swirl generator () capable of swirling a combustion air stream, a device for injecting at least one fuel into the combustion air stream from the upstream swirl generator (), an exit ring () located at the downstream end of the burner () at the edge to the combustion chamber () where the fuel is burnt, and preferentially a mixing section () downstream from the upstream swirl generator () having a downstream end, having at least one transfer duct () for transferring downstream a flow of combustion air and fuel formed in the upstream swirl generator (), and having a mixing tube () downstream from the at least one transfer duct () and receiving flow from the at least one transfer duct (), wherein the downstream end of the mixing section borders the combustion chamber () and is formed by the exit ring (). Pilot mode operation of such a burner () is advantageously and economically made possible by providing a pilot burner system () in the exit ring () for injecting liquid fuel () into the combustion chamber ().

Premixed exit ring pilot burner

In an atomizer device for the production of a liquid-gas mixture (), the mixture () is introduced, particularly for compression, into a nozzle arrangement () in which the kinetic energy of the mixture () is in large part converted into compression energy by a pressure rise of the air. The atomizer device () includes a central air feed () and a nozzle chamber () for the supply of liquid surrounding the air feed. At or in the atomizing device, means () are arranged in the nozzle chamber for producing a swirled liquid flow in the nozzle chamber (), and the swirled liquid flow emerges via a nozzle aperture () surrounding the air feed.

Atomizer device and method for the production of a liquid-gas mixture

In a method and a device for intermediate cooling during compression in a gas turbine system, the gas turbine system includes at least one first () and one second compressor (), a combustion chamber (), and a turbine (). At least one intermediate cooler () is located between the first () and second compressor (). The intermediate cooling takes place at least in part or for the most part isentropically.

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Wettingen, Switzerland

Sasha Savic