WO2025075496A1 - Système de stockage et de transfert de chaleur - Google Patents

Système de stockage et de transfert de chaleur Download PDF

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Publication number
WO2025075496A1
WO2025075496A1 PCT/NL2024/050531 NL2024050531W WO2025075496A1 WO 2025075496 A1 WO2025075496 A1 WO 2025075496A1 NL 2024050531 W NL2024050531 W NL 2024050531W WO 2025075496 A1 WO2025075496 A1 WO 2025075496A1
Authority
WO
WIPO (PCT)
Prior art keywords
heat
vessel
thermal insulation
energy
insulation space
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
PCT/NL2024/050531
Other languages
English (en)
Inventor
Wilhelmus Elisabeth Hubertus KROONEN
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hykro BV
Original Assignee
Hykro BV
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hykro BV filed Critical Hykro BV
Publication of WO2025075496A1 publication Critical patent/WO2025075496A1/fr
Anticipated expiration legal-status Critical
Pending legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D20/00—Heat storage plants or apparatus in general; Regenerative heat-exchange apparatus not covered by groups F28D17/00 or F28D19/00
    • F28D20/0034—Heat storage plants or apparatus in general; Regenerative heat-exchange apparatus not covered by groups F28D17/00 or F28D19/00 using liquid heat storage material
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D20/00—Heat storage plants or apparatus in general; Regenerative heat-exchange apparatus not covered by groups F28D17/00 or F28D19/00
    • F28D20/0056—Heat storage plants or apparatus in general; Regenerative heat-exchange apparatus not covered by groups F28D17/00 or F28D19/00 using solid heat storage material
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/14—Thermal energy storage

Definitions

  • the invention relates to a system for storing and transferring heat.
  • the invention also relates to an on-site generation structure for energy storage and transfer comprising a system of this disclosure.
  • a drawback of this system is that water (energy) discharge goes together with a relatively cold water supply which means that water (energy) discharge from the water tank has a relatively strong impact on the total energy stored in the tank.
  • the double wall water tank will run out of energy in a relatively short period of time.
  • the maximum temperature of water is relatively low under atmospheric pressure conditions.
  • the system for storing and transferring heat comprises:
  • At least one vessel unit having a first inner heat storage vessel for storing heat and a second outer vessel surrounding the first inner vessel, wherein between the first inner vessel and the second outer vessel a thermal insulation space is provided;
  • this system By means of this system it is possible to store energy, in particular heat, for a relatively long period of time.
  • energy in particular heat
  • the system is configured to provide minimal energy storage loss for a relatively long time, such as weeks or even months, by using vacuum technology.
  • Vacuum technology is used in the system to engineer high-performance thermal insulation to prevent conductive and convective heat transfer, i.e. to reduce heat loss from the first inner heat storage by providing a vacuum or at least a partial vacuum of for example 50-10000 Pa.
  • the system further has an improved configuration to transfer the energy, in particular heat, out of the system.
  • the system is configured to transfer heat in a relatively efficient manner out of the system with a relatively low impact on the total heat energy stored in the system.
  • This configuration ensures that heat is not directly transferred from the first inner heat storage vessel, but instead indirectly by using the heat transfer mechanism which is configured to be brought in fluid communication with the thermal insulation space between the first inner vessel and the second outer vessel for transferring heat out of the at least one vessel unit.
  • the thermal insulation space has at least one port, wherein the vacuum pump and the heat exchanger are in fluid communication with the thermal insulation space by means of the at least one port.
  • the at least one port may be used by means of the vacuum pump and the heat transfer mechanism sequentially or simultaneously.
  • the vacuum pump is in fluid communication with the thermal insulation space by means of the port(s) and the heat exchanger of the heat transfer mechanism is in fluid communication with the thermal insulation space by means of the same port(s).
  • the vacuum pump can be used to transfer heat from the thermal insulation space to the heat transfer mechanism in an efficient manner and simultaneously lower the pressure in the thermal insulation space by means of the vacuum pump.
  • Solid material in the first inner heat storage vessel to store energy for long term heat storage is more preferred from efficiency and safety perspective, in particular solid materials having no phase change in temperature ranges between 100-1000 degrees .
  • the solid material may be capable to be heated to a temperature between 150-1000°C, preferably between 250-750°C, without significant chemical reactions or melting.
  • the solid material is a stationary heat storage medium.
  • Solid storage material may include natural rocks, sandstone, granite, sand, salts, oxides ceramics, castable cements, concrete, basalt, steel slag or elements such as carbon/graphite, silicon, or iron. It is also possible to use mixtures of the mentioned solid materials.
  • the method of this disclosure comprises an insulation operating mode and a heat transfer operating mode, wherein in the insulation operating mode step B is being performed without step C, wherein in the heat transfer operating mode at least step C is being performed.
  • Figure 1 shows in a diagrammatic manner a system for storing and transferring heat
  • Figure 2 shows in a diagrammatic manner another embodiment of a system for storing and transferring heat
  • At least one vessel unit 10 having a first inner heat storage vessel 3 for storing heat and a second outer vessel 5 surrounding the first inner vessel 3, wherein between the first inner vessel 3 and the second outer vessel 5 a thermal insulation space 7 is provided;
  • the first inner heat storage vessel 3 is adapted for solid material for storing heat energy and comprises solid material (not shown) for storing heat energy, wherein the solid material in the first inner heat storage vessel 3 is capable to be heated to a temperature between 150-1000°C, preferably between 250-750°C, without significant chemical reactions or melting.
  • the systems 1 ; 201 as shown in figures 1 and 3 differ from the system 101 shown in figure 2 in that the system 101 comprises one or more radiation shields indicated by dotted lines 113 arranged in the thermal insulation space 7. It is possible to use radiation shields 113 also in the system 201.
  • the systems 1 ; 101 as shown in figures 1 and 2 differ from the system 201 as shown in figure 3 in that an energy introduction unit 15 of the system 1 ; 101 for storing heat energy in the first inner heat storage vessel 3 is configured for electricity or electrical energy conversion into heat, whereas the system 201 comprises an energy introduction unit 215 with a different configuration, i.e. the energy introduction unit 215 is configured for fluid or fluid heat transfer.
  • the energy introduction unit 15 of the system 1 ; 101 for storing heat energy in the first inner heat storage vessel 3 comprises an electrical network 17 and in the first inner heat storage vessel 3 a heat transfer arrangement 22, for example heated element(s) to be heated with electricity from the electrical network 17 for heating the solid material in the first inner heat storage vessel 3.
  • the electrical network 17 is for example connected or connectable to solar panels (not shown) as a power source.
  • the heat transfer mechanism 11 heat energy is transferred from the system 1 ; 101 ; 201 , for example to a conventional heating system for buildings or other energy heat demanding appliances or converted to other forms such as mechanical work or electricity.
  • the heat transfer mechanism 11 is, or comprises, a heat exchanger which is arranged externally to the at least one vessel unit 10.
  • the on-site generation structure may be for example used to store renewable energy between seasons.
  • the dimensions of the vessel unit 10 in an on-site generation structure will between a height of 2-10 meter, such as a height of 4-6 meter and a diameter between 1-5 meter, such as 1 ,5- 3 meter. In other applications than in an on-site generation structure different dimensions of the vessel unit 10, i.e. most likely larger dimensions, will be used.
  • the first inner vessel 3 and the second outer vessel 5 provide the at least one vessel unit 10 as shown in Figs 1-3.
  • step C gas for example ambient air, may be introduced in the thermal insulation space.
  • step B In an insulation operating mode of the method step B is being performed without step C, wherein in a heat transfer operating mode of the method at least step C is being performed.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Filling Or Discharging Of Gas Storage Vessels (AREA)

Abstract

L'invention concerne un système de stockage et de transfert de chaleur comprenant au moins une unité de cuve ayant une première cuve de stockage de chaleur interne pour stocker de la chaleur et une seconde cuve externe entourant la première cuve interne, un espace d'isolation thermique étant prévu entre la première cuve interne et la seconde cuve externe. L'invention concerne également une structure de génération sur site pour le stockage et le transfert d'énergie comprenant le système de stockage et de transfert de chaleur. L'invention concerne en outre un procédé de stockage et de transfert de chaleur.
PCT/NL2024/050531 2023-10-06 2024-09-27 Système de stockage et de transfert de chaleur Pending WO2025075496A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NL2035971A NL2035971B1 (en) 2023-10-06 2023-10-06 A system for storing and transferring heat
NL2035971 2023-10-06

Publications (1)

Publication Number Publication Date
WO2025075496A1 true WO2025075496A1 (fr) 2025-04-10

Family

ID=88778525

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/NL2024/050531 Pending WO2025075496A1 (fr) 2023-10-06 2024-09-27 Système de stockage et de transfert de chaleur

Country Status (2)

Country Link
NL (1) NL2035971B1 (fr)
WO (1) WO2025075496A1 (fr)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102009056693A1 (de) 2009-12-02 2011-06-16 Weinmüller, Alf Doppelwand Wassertank mit Vakuum Nachladung
US20160146546A1 (en) * 2013-07-15 2016-05-26 Jan Holub System for storing energy
WO2023073334A1 (fr) * 2021-10-28 2023-05-04 Caldera Heat Batteries Limited Accumulateur thermique amélioré

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102009056693A1 (de) 2009-12-02 2011-06-16 Weinmüller, Alf Doppelwand Wassertank mit Vakuum Nachladung
US20160146546A1 (en) * 2013-07-15 2016-05-26 Jan Holub System for storing energy
WO2023073334A1 (fr) * 2021-10-28 2023-05-04 Caldera Heat Batteries Limited Accumulateur thermique amélioré

Also Published As

Publication number Publication date
NL2035971B1 (en) 2025-04-11

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