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Sensible heat and latent heat combined heat storage system and method

A heat storage system and latent heat technology, applied in solar heating systems, solar heat storage, heat storage equipment, etc., can solve the problem of low heat storage performance of heat storage systems

Active Publication Date: 2019-11-22
HUAZHONG UNIV OF SCI & TECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The embodiment of the present application solves the technical problem of low heat storage performance of the heat storage system in the related art by providing a sensible heat latent heat composite heat storage system and method

Method used

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  • Sensible heat and latent heat combined heat storage system and method
  • Sensible heat and latent heat combined heat storage system and method

Examples

Experimental program
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Embodiment 1

[0044] This embodiment provides a sensible heat latent heat composite heat storage system, see figure 1 , including a heat storage unit, a first pipeline controller and a second pipeline controller; wherein,

[0045] The heat storage unit includes more than two latent and sensible heat storage devices connected in parallel, one end of the latent and sensible heat storage devices connected in parallel is connected to one end of the first pipeline controller through a pipeline, The other end is connected to one end of the second pipeline controller through a pipeline;

[0046] The other end of the first pipeline controller is connected to the first pipeline, and the first pipeline is used for introducing an external heat source medium; The communication relationship of the heat composite heat storage device is switched through the first pipeline controller;

[0047] The other end of the second pipeline controller is connected to a second pipeline, and the second pipeline is us...

Embodiment 2

[0077] This embodiment provides a thermal energy storage method, which is based on the system of Embodiment 1, and the method includes:

[0078] Controlling the heat source medium to flow into a latent and sensible heat storage device in the heat storage unit for charging, and when the temperature difference between the sensible heat structure and the latent heat structure of the latent and sensible heat storage device reaches a first preset temperature After the value is reached, stop charging the latent and sensible heat storage device, switch the heat source medium to another latent and sensible heat storage device in the heat storage unit for charging, until the heat storage unit in the heat storage unit All latent heat sensible heat composite heat storage devices complete the first charge;

[0079] Wherein, after the latent and sensible heat composite heat storage device stops charging, its sensible heat structure continues to charge the latent heat structure by using the...

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Abstract

The invention discloses a sensible heat and latent heat combined heat storage system. The sensible heat and latent heat combined heat storage system comprises a heat storage unit, a first pipeline controller and a second pipeline controller, wherein the heat storage unit comprises two or more latent heat and sensible heat combined heat storage devices which are connected in parallel; the communication relation between a first pipeline and each latent heat and sensible heat combined heat storage device in the heat storage unit is switched through the first pipeline controller; the other end ofthe second pipeline controller is connected with a second pipeline; the second pipeline is used for outputting a heat source medium which is subjected to heat exchange through the heat storage unit; and the communication relation between the second pipeline and each latent heat and sensible heat combined heat storage device in the heat storage unit is switched through the second pipeline controller. The technical problem that in the prior art, the heat storage property of a heat storage system is low is solved.

Description

technical field [0001] The invention relates to the technical field of heat storage, in particular to a sensible heat latent heat composite heat storage system and method. Background technique [0002] Under the background of global climate warming and energy crisis, active development and utilization of renewable new energy has become an inevitable choice for China to achieve sustainable energy development. my country is extremely rich in solar energy resources. Two-thirds of the country's land area has annual sunshine hours of more than 2,200 hours, and the annual total solar radiation is greater than 5,000 megajoules per square meter. The development potential is huge. However, solar energy has low energy density, strong dispersion, instability and discontinuity. How to rationally utilize and store solar energy at a lower cost is an important issue facing the world. As a result, thermal storage systems were developed for concentrated solar power plants to continuously g...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F24S60/00F24S60/10F24S20/20F24S50/40F28D20/00F28D20/02
CPCF24S20/20F24S50/40F24S60/00F24S60/10F28D20/00F28D20/028F28D2020/0017Y02E10/40Y02E60/14
Inventor 曾阔左宏杨卢旺陈豫潘铖陈汉平杨心怡甄万鑫刘晴川梁泽路
Owner HUAZHONG UNIV OF SCI & TECH
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