Pumped heat energy storage system with charge cycle thermal integration
US11286804B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Aug 12, 2020 |
| Grant date | Mar 29, 2022 |
| Priority date | — |
| Expiry date | Aug 12, 2040 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/14
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A system including: a pumped-heat energy storage system (“PHES system”), wherein the PHES system is operable in a charge mode to convert electricity into stored thermal energy, wherein the PHES system comprises a working fluid path circulating a working fluid through, in sequence, at least a compressor system, a hot-side heat exchanger system, a turbine system, a cold-side heat exchanger system, and back to the compressor system; and (ii) a fluid path directing a hot fluid from a heat source external to the PHES system through a reheater, wherein a portion of the working fluid path through the turbine system comprises circulating the working fluid through a first turbine, the reheater, and a second turbine, and wherein the working fluid thermally contacts the hot fluid in the reheater, thereby transferring heat from the hot fluid to the working fluid.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.