Highview Enterprises Limited

Colm John Cochrane

Nicola Castellucci

Fahmi Osman Awale

Oliver James Mcardle

Cian Quinn

The present invention relates to cryogenic energy storage systems for storing using high-grade heat-of-compression. The system includes a liquefaction sub-system () and thermal energy storage device (). The liquefaction sub-system () includes a first compressor (), a first, second and third heat exchanger () and second compressor (). The first and second heat exchangers () are configured to transfer the high-grade heat of compression from the first and second compressors () respectively to the thermal energy storage device (). The third heat exchanger () is configured to recuperate the low-grade heat of compression from the second compressor () back into the second compressor () enabling the second compressor () to generate high-grade heat of compression. Further systems use compressors () and expanders (). Further systems include power recovery sub-systems (). The present disclosure also relates to methods of heat-of-compression storage in cryogenic energy storage systems.

High-grade heat-of-compression storage system, and methods of use

A power recovery sub-system for a cryogenic energy storage system, the sub-system comprising: a first and a second thermal energy storage device (TESD); a first, a second and a fourth heat exchanger (HEX); a first, a second and a fourth expansion stage; a first arrangement of conduits, having an upstream end and a downstream end, and configured to pass a working fluid through the first HEX, the first expansion stage, the second HEX, and the second expansion stage; a second arrangement of conduits configured to pass a first heat transfer fluid from the first TESD, through the first and the second HEX; and a third arrangement of conduits configured to pass a second heat transfer fluid from the second TESD, through the fourth HEX, wherein the first arrangement of conduits is configured to pass the working fluid through the fourth HEX and the fourth expansion stage.

Growing community of inventors

London, United Kingdom

Colm John Cochrane