Thermoelectric energy storage system having an internal heat exchanger and method for storing thermoelectric energy

a technology of thermoelectric energy storage and internal heat exchanger, which is applied in the direction of steam engine plants, lighting and heating apparatus, water feed control, etc., can solve the problems of limited round-trip efficiency of known electric energy storage technologies, loss of rest of electrical energy, and limited round-trip efficiency of tees systems

Inactive Publication Date: 2012-09-06
ABB RES LTD
View PDF6 Cites 54 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It is important to point out that known electric energy storage technologies inherently have a limited round-trip efficiency.
The rest of the electrical energy is lost.
The roundtrip efficiency of the TEES system is limited for various reasons due to the second law of thermodynamics.
Secondly, the conversion of heat t...

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Thermoelectric energy storage system having an internal heat exchanger and method for storing thermoelectric energy
  • Thermoelectric energy storage system having an internal heat exchanger and method for storing thermoelectric energy
  • Thermoelectric energy storage system having an internal heat exchanger and method for storing thermoelectric energy

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0026]Exemplary embodiments of the present disclosure provide a thermoelectric energy storage system for converting electrical energy into thermal energy to be stored and converted back to electrical energy with an improved round-trip efficiency.

[0027]In one exemplary embodiment of the present disclosure, a thermoelectric energy storage system has a charging cycle for providing thermal energy to a thermal storage, and a discharging cycle for generating electricity by retrieving the thermal energy from the thermal storage. The thermoelectric energy storage system includes a working fluid circuit for circulating a working fluid through a first heat exchanger and a second heat exchanger, a thermal storage medium circuit for circulating a thermal storage medium. The thermal storage medium circuit has at least one hot storage tank coupled to a cold storage tank via the first heat exchanger. The second heat exchanger can be adapted to further cool the working fluid at the output of the fi...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

Exemplary embodiments are directed to a thermoelectric energy storage system (TEES) and method for converting electrical energy into thermal energy to be stored and converted back to electrical energy with an improved round-trip efficiency are disclosed. The TEES includes a working fluid circuit for circulating a working fluid through a first heat exchanger and a second heat exchanger, a thermal storage medium circuit for circulating a thermal storage medium, the thermal storage medium circuit having at least one hot storage tank coupled to a cold storage tank via the first heat exchanger. The arrangement maximizes the work performed by the cycle during charging and discharging for a given maximum pressure and maximum temperature of the working fluid.

Description

RELATED APPLICATION(S)[0001]This application claims priority as a continuation application under 35 U.S.C. §120 to PCT / EP2010 / 065217, which was filed as an International Application on Oct. 11, 2010 designating the U.S., and which claims priority to European Application 09172831.1 filed in Europe on Oct. 13, 2009. The entire contents of these applications are hereby incorporated by reference in their entireties.FIELD[0002]The present disclosure relates generally to thermoelectric energy, such as, the storage of electric energy and particularly to a system and method for storing electric energy in the form of thermal energy in thermal energy storage.BACKGROUND INFORMATION[0003]Base load generators such as nuclear power plants and generators with stochastic, intermittent energy sources such as wind turbines and solar panels, generate excess electrical power during times of low power demand. Large-scale electrical energy storage systems are a means of diverting this excess energy to ti...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): F01K3/02F01K9/02F01K3/12F01K3/18
CPCF01K3/006F01K11/04F01K3/12
Inventor MERCANGOEZ, MEHMETHEMRLE, JAROSLAVKAUFMANN, LILIAN
Owner ABB RES LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap