A heat exchanger and a method for an energy storage system

IL330469A0Pending Publication Date: 2026-08-01BUFFER SOLUTIONS OY
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Patent Information

Application Number
IL330469
Authority / Receiving Office
IL · IL
Patent Type
Applications
Current Assignee / Owner
Priority Date
2024-01-25
Filing Date
2025-01-17
Publication Date
2026-08-01

AI Technical Summary

Technical Problem

Sand-based heat storage systems face issues such as particle stratification, agglomeration, and inefficient heat transfer due to temperature variations and fluidization challenges, leading to reduced efficiency and complexity in design and maintenance.

Method used

A heat exchanger design with modular heat transfer modules separated by module walls and openings, allowing fluidized solid particles to travel horizontally, combined with a fluidization system using gas to maintain a dynamic state, and controlled heater elements for continuous heating and temperature management.

Benefits of technology

Enhances thermal energy storage efficiency with low heat loss, scalable design, and flexible discharge options for various temperature uses, while ensuring safe operation and quick response to energy fluctuations.

✦ Generated by Eureka AI based on patent content.

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Abstract

A heat exchanger utilizes solid particles (5), for example sand particles, that are heated by the electric power from the renewable energy power plant. The solid particles (5) are fluidized by gas from a static solid-like state to a dynamic fluid-like state. The heat exchanger has multiple adjacent heat transfer modules (11 – 18), that are each partially separated by a module wall (111, 121, 131, 141). The module wall (111, 121, 131, 141) between adjacent heat transfer modules has an opening in the module wall to allow the fluidized solid particles (5) to travel to adjacent heat transfer module (11 – 18). The fluidized solid particles (5) travel horizontally from the particle inlet (41) via adjacent heat transfer (11 – 18) modules and through said opening to the particle outlet (42) of the last heat transfer module.
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