High temperature thermal energy storage system

Abstract

High temperature thermal energy storage system comprised of solid-liquid phase change material that is fully encapsulated in helically grooved, sealed, thin-wall, metal tubes. Multitude of horizontally oriented, pressure-rated steam pipes or vessels filled with PCM tube capsules form a battery of thermal storage system. The steam pipes in the battery are connected through a common liquid-side distribution header system and a common steam-side distribution header system. Multitude of steam pipes stacked up to fill a block-shaped container space. This insulated enclosure provides the basis for simple fabrication, transport and filed-erection and forms the basic building block for a modular thermal storage system.

Description

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AI Technical Summary

Benefits of technology

This patent describes an invention where there is a thin-walled container made up of a helically grooved tube containing phase change material. This design allows for flexibility when the temperature changes during use. The tube can have a much longer length compared to its size and it should always be full of liquid material. When the material cools down, it forms a solid state which causes pressure on the inner surface of the tube, resulting in damage if left unchecked.

Problems solved by technology

The technical problem addressed in this patent text is the need for more efficient and cost-effective thermal storage systems for solar thermal applications. Current systems using liquid or solid materials have limitations such as high melting temperatures, complexity and cost of fluid handling, and poor heat transfer between the storage material and the primary heat transfer fluid. The patent proposes a new system that overcomes these challenges and provides a more efficient and cost-effective solution for high temperature thermal storage.

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