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Energy storage device for temporarily storing thermal energy, power plant having an energy storage device, and method for operating an energy storage device

A technology for power stations and facilities, applied in thermal storage equipment, lighting and heating equipment, heat exchanger types, etc., can solve the problems of lowering the temperature of the storage medium, reducing the efficiency of energy storage facilities, etc., to achieve reliable operation and small structural space requirements , low cost effect

Active Publication Date: 2017-08-01
SCHIERACK GREEN TECH GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

But the disadvantage of this is that the temperature of the storage medium (that is, the salt) will decrease during the release of energy
However, this would further reduce the efficiency of the energy storage facility

Method used

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  • Energy storage device for temporarily storing thermal energy, power plant having an energy storage device, and method for operating an energy storage device
  • Energy storage device for temporarily storing thermal energy, power plant having an energy storage device, and method for operating an energy storage device

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Embodiment approach

[0081] With the second embodiment of the energy storage installation 1 proposed here, in principle, the same advantages as with the first embodiment can be achieved. By arranging the fluid container 3 vertically, the energy storage installation 1 can be realized with a particularly small base area. Furthermore, the density difference between the cold fluid in the first fluid storage chamber 7 and the hot fluid in the second fluid storage chamber 8 can be utilized when loading and / or unloading the energy storage installation 1 .

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Abstract

The invention relates to an energy storage device (1) for temporarily storing thermal energy. A closed storage circuit (2) is provided, to which heat can be fed by means of a heat source (14) and from which heat can be drawn by means of a heat consumer (12) and in which a fluid tank (3) is present, which is divided into a first fluid storage chamber (7) for colder fluid and a second fluid storage chamber (8) for warmer fluid by means of a movable separating element (6), wherein at least one pump (11), by means of which fluid can be conveyed from the first fluid storage chamber (7) into the second fluid storage chamber (8) and / or vice versa, is provided in the storage circuit (2). The invention further relates to a power plant and to a method for operating an energy storage device (1).

Description

technical field [0001] The invention relates to an energy storage facility for thermal energy buffering. Furthermore, the invention relates to a power plant, in particular a solar power plant, a wind power plant or a solar wind power plant, having at least one energy storage facility, and a method for operating the energy storage facility. Background technique [0002] The energy storage facility mentioned at the outset can be used in several fields for buffering thermal energy, i.e. for example loaded with thermal energy during a first period of time and stored at a second period of time immediately following this first period of time heat energy is released in the section. Thus, by means of such an energy storage facility, energy provided by the heat source can be absorbed for a first period of time. During the second time period, the buffered thermal energy is released again in order to supply thermal energy to heat-using objects, for example. [0003] In particular, t...

Claims

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Application Information

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IPC IPC(8): F28D20/00
CPCF28D20/0039F28D2020/0095Y02E60/14
Inventor R·霍尔米格H·席拉克
Owner SCHIERACK GREEN TECH GMBH
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