APPARATUS AND METHODS FOR THE STORAGE OF ENERGY AS HEAT

    公开(公告)号:US20240084719A1

    公开(公告)日:2024-03-14

    申请号:US17767864

    申请日:2020-10-09

    IPC分类号: F01K3/12 F28D20/00

    CPC分类号: F01K3/12 F28D20/0056

    摘要: A pumped heat storage apparatus has a prime mover, a power take off, first and second fluid working machines functioning as a compressor (8) and as an expander (10), a working fluid circulation pathway with high and low pressure sides, and high and low temperature heat exchangers (18A-B). The heat exchangers operate using direct contact between gaseous working fluid and solid thermal storage media, such as glass beads, which move in opposite directions, typically using an augur (44). The system is reversible between energy storage and energy recovery modes and when it reverses, the direction of movement of the working fluid and the thermal storage media reverses. The apparatus may very rapidly swap between energy storage and energy recovery while having a high capacity and energy throughout.

    SUPERCRITICAL FLUID POWER SYSTEM AND CONTROL METHOD THEREFOR

    公开(公告)号:US20180347409A1

    公开(公告)日:2018-12-06

    申请号:US15528019

    申请日:2015-11-17

    申请人: Songwei Guo

    发明人: Songwei Guo

    IPC分类号: F01K27/00 F01K25/10 F03G7/05

    CPC分类号: F01K27/00 F01K3/12 F01K7/32

    摘要: A supercritical fluid power system comprises: a power cycle loop (10) filled with a supercritical fluid working substance and comprising a first pressure container (11), a second pressure container (12), and a driven portion (13) disposed between the two pressure containers; and a hot source (20) and a cold source (30), wherein the hot source (20) is used to provide thermal energy to a working substance in one pressure container, and the cold source (30) is used to cool the working substance in another pressure container, so as to form a pressure difference between the two pressure containers. The working substance flows between the two pressure containers under the effect of the pressure difference and flows to the driven portion (13) to provide power to the driven portion (13). For this power system, a pressure difference is cyclically produced between the two pressure containers, thereby implementing recycling of power.

    ENERGY STORAGE DEVICE AND METHOD FOR STORING ENERGY

    公开(公告)号:US20180142577A1

    公开(公告)日:2018-05-24

    申请号:US15568685

    申请日:2016-04-19

    摘要: An energy storage device for storing energy including: a high-temperature regenerator containing a storage material and a working gas as heat transfer medium for the purpose of exchanging heat between the storage material and the traversing working gas, a closed charging circuit for the working gas, including a first compressor, a first expander, a first recuperator having a first and a second heat exchange duct, the high-temperature regenerator and a pre-heater, wherein the first compressor is coupled to the first expander by a shaft, a discharging circuit for the working gas, and including a switch that selectively connects the high-temperature regenerator to either the charging circuit or the discharging circuit, such that the circuit containing the high-temperature regenerator forms a closed circuit.