Unlock instant, AI-driven research and patent intelligence for your innovation.

Heat exchanger for thermal storage system

A technology of heat exchanger and heat storage system, applied in heat exchange equipment, steam generation method using heat carrier, indirect heat exchanger, etc., can solve the problem of high cost and price, and achieve the effect of simplifying structure and reducing cost

Inactive Publication Date: 2015-06-17
COMMISSARIAT A LENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES
View PDF6 Cites 8 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

On the other hand, the ratio of the outer diameter of the fins to the diameter of the tube is limited, which leads to the use of a large number of tubes to obtain a sufficient exchange area, so the cost price is high

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
  • Heat exchanger for thermal storage system
  • Heat exchanger for thermal storage system
  • Heat exchanger for thermal storage system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0055] Figure 7 An exemplary embodiment of a heat storage system according to the invention is schematically shown.

[0056] The heat storage system consists of a heat exchanger and either a phase change material (in the case of latent heat storage) or a heat transfer fluid that does not undergo a phase change (storage via sensible heat).

[0057] The heat exchanger comprises a cylindrical housing 2 with a longitudinal axis X through which a tube 4 extends parallel to the longitudinal axis X and is connected to the inlet and outlet of the heat transfer fluid circuit . Said cylindrical housing 2 is designed to be filled with a phase change material 6 which surrounds and contacts the outer surface of the tube 4 .

[0058] The heat transfer fluid can be, for example, water in steam form produced by a solar direct steam power plant, which transfers its heat to a phase change material, or water in liquid form to be converted into steam for feeding to a turbine, in which case Th...

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

Thermal storage system comprising a shell, tubes through which a heat-transfer fluid is intended to flow, and a phase-change material surrounding said tubes, fins for the exchange of heat with the phase-change material being fixed to an exterior surface of the tubes, said thermal storage system also comprising at least one insert (10) made of thermally conducting material positioned around said tubes, said insert (10) comprising at least one housing (9) to accommodate the tubes, at least in part, with clearance, said insert (10) comprising a collection of branches (12, 16) made of thermally conductive material so that it forms a network that distributes and collects heat through the phase-change material.

Description

technical field [0001] The present invention relates to heat exchangers for heat storage systems using a phase change material. Background technique [0002] Concentrating thermal solar technology consists in using solar radiation to heat a fluid that acts directly or indirectly as a heat source in a thermodynamic cycle. Concentration of light leads to a more or less high temperature, so that a more or less good heat conversion efficiency is achieved. [0003] In order to make concentrated solar installations more attractive for power generation, high-temperature thermal storage systems are required to store excess thermal energy and make it available, for example, when sunlight decreases. [0004] At present, a direct steam generation solar power device has been developed, and the steam generated by it is sent to a turbine to generate electricity. When more steam flow is generated than the nominal turbine flow, the excess steam is stored in the heat storage system. When ...

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
Patent Type & Authority Applications(China)
IPC IPC(8): F28D20/02F28F21/08F28F1/20F28F1/22F28F1/36F22B1/02F22B1/00
CPCF01K3/00F22B1/006F22B1/028F28D7/0041F28D20/021F28F1/12F28F1/20F28F1/22F28F1/36F28F21/084F28F2215/10F28F2215/14F28F2255/16F28F2265/26Y02E60/14
Inventor 马克·奥尔瑟斯
Owner COMMISSARIAT A LENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES