Installation for storing thermal energy
AssigneeSiemens Aktiengesellschaft
InventorsDaniel Reznik, Henrik Stiesdal
Life of this patent
Estimating the term…
Abstract
An installation for storing thermal energy which can be obtained, for example, at times of overcapacities, from regenerative energy and then be stored is provided. The energy stored in a heat accumulator, a cold accumulator and in an additional heat accumulator can be, when needed, reconverted into electrical energy by circuits via a generator (G) while using a compressor and a turbine. The working gas is humidified by a humidification column, ideally until saturation, whereby, advantageously, a greater mass flow can be obtained at a lower volume flow. For this reason, more economical components can be used while simultaneously a high yield of the installation is achieved.
Claims10
An installation for storing thermal energy, comprising:
- a circuit for a working gas, wherein, in the circuit, the following units are connected to one another in the stated sequence by a line for the working gas:
- a cold accumulator,
- a first thermal fluid energy machine,
- a heat accumulator and
- a second thermal fluid energy machine,
- wherein, as viewed in a throughflow direction of the working gas from the cold accumulator to the heat accumulator, the first thermal fluid energy machine is positioned as work machine and the second thermal fluid energy machine is positioned as prime mover,
- wherein a humidification unit for the working gas is provided in the line between the first thermal fluid energy machine and the heat accumulator.
Dependencies are inferred from the claim text.