THERMOELECTRIC ENERGY STORAGE SYSTEM
First Claim
1. A thermoelectric energy storage system for storing electrical energy by transferring thermal energy to a thermal storage in a charging cycle, and for generating electricity by retrieving the thermal energy from the thermal storage in a discharging cycle, the thermoelectric energy storage system comprising:
- a working fluid circuit configured to circulate a working fluid through a heat exchanger; and
a thermal storage conduit configured to transfer a thermal storage medium from a thermal storage tank through the heat exchanger,wherein the working fluid includes a zeotropic mixture.
1 Assignment
0 Petitions
Accused Products
Abstract
A thermoelectric energy storage system and method are provided for storing electrical energy by transferring thermal energy to a thermal storage in a charging cycle, and for generating electricity by retrieving the thermal energy from the thermal storage in a discharging cycle. The thermoelectric energy storage includes a working fluid circuit configured to circulate a working fluid through a heat exchanger, and a thermal storage conduit configured to transfer a thermal storage medium from a thermal storage tank through the heat exchanger. The working fluid includes a zeotropic mixture. The working fluid is in a mixed vapor and liquid phase and has continuously rising or continuously falling temperature during heat transfer due to the working fluid including the zeotropic mixture.
-
Citations
28 Claims
-
1. A thermoelectric energy storage system for storing electrical energy by transferring thermal energy to a thermal storage in a charging cycle, and for generating electricity by retrieving the thermal energy from the thermal storage in a discharging cycle, the thermoelectric energy storage system comprising:
-
a working fluid circuit configured to circulate a working fluid through a heat exchanger; and a thermal storage conduit configured to transfer a thermal storage medium from a thermal storage tank through the heat exchanger, wherein the working fluid includes a zeotropic mixture. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25)
-
-
12. A method for storing and retrieving electrical energy, the method comprising:
-
storing electrical energy by transferring thermal energy to a thermal storage in a charging cycle; and retrieving electrical energy by changing the thermal energy from the thermal storage into mechanical energy in a discharging cycle, wherein the charging cycle and the discharging cycle comprise transferring heat between a working fluid and a thermal storage medium, and wherein the working fluid is in a mixed vapor and liquid phase and has continuously rising or continuously falling temperature during heat transfer due to the working fluid including a zeotropic mixture. - View Dependent Claims (13, 14, 26, 27, 28)
-
Specification