EP1240270A1 - Regulateur thermique dynamique a changement d'etat - Google Patents

Regulateur thermique dynamique a changement d'etat

Info

Publication number
EP1240270A1
EP1240270A1 EP00985065A EP00985065A EP1240270A1 EP 1240270 A1 EP1240270 A1 EP 1240270A1 EP 00985065 A EP00985065 A EP 00985065A EP 00985065 A EP00985065 A EP 00985065A EP 1240270 A1 EP1240270 A1 EP 1240270A1
Authority
EP
European Patent Office
Prior art keywords
latent heat
medium
heat storage
particular according
storage material
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.)
Withdrawn
Application number
EP00985065A
Other languages
German (de)
English (en)
Inventor
Klaus Fieback
Wolfgang Ahrens
Dirk Carsten BÜTTNER
Lutz Kutzker
Andreas Laube
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.)
Schuemann Sasol GmbH and Co KG
Original Assignee
Schuemann Sasol GmbH and Co KG
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
Priority claimed from DE10048536A external-priority patent/DE10048536A1/de
Application filed by Schuemann Sasol GmbH and Co KG filed Critical Schuemann Sasol GmbH and Co KG
Publication of EP1240270A1 publication Critical patent/EP1240270A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K5/00—Heat-transfer, heat-exchange or heat-storage materials, e.g. refrigerants; Materials for the production of heat or cold by chemical reactions other than by combustion
    • C09K5/02—Materials undergoing a change of physical state when used
    • C09K5/06—Materials undergoing a change of physical state when used the change of state being from liquid to solid or vice versa
    • C09K5/063—Materials absorbing or liberating heat during crystallisation; Heat storage materials
    • 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
    • F28D20/02—Heat storage plants or apparatus in general; Regenerative heat-exchange apparatus not covered by groups F28D17/00 or F28D19/00 using latent heat
    • F28D20/025—Heat storage plants or apparatus in general; Regenerative heat-exchange apparatus not covered by groups F28D17/00 or F28D19/00 using latent heat the latent heat storage material being in direct contact with a heat-exchange medium or with another 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

  • Dynamic latent heat store 00002 00003 The invention relates to a latent heat store, for example 00004 a dynamic latent heat store, with a latent 00005 heat storage material on a paraffin base and a heat 00007 transport medium which may pass through 00006 boiling and condensation phases.
  • 00008 00009 Latent heat storage devices of this type have already become known in various configurations.
  • 00011 dynamic latent heat storage reference is made in particular to 00012 EP 522 259 B1, in addition also to 00013 DD 270 310, DE 35 24 242 AI, DD 236 862 and 00014 DE 33 25 943 C2.
  • 00015 00016 In these known latent heat stores practically pure paraffin is used as latent heat storage material 00018.
  • 00045 elements for example, have a spherical shape, remain
  • 00066 can be caught well in a closed container
  • 00071 melted elements shifted out.
  • the heat transport medium located between 00073 and the already softened medium elements 00074 is displaced into 00075 areas in which the medium elements are still set comparatively hard.
  • 00077 00078 In particular also with regard to the design of a 00079 dynamic latent heat storage device, there is no longer any limit to the design 00080 and height. There is no 00081 "grafting" of latent heat storage material, 00082 which must be penetrated by the boiling heat transfer medium 00083.
  • the thickener can be a styrene block 00093 copolymer. Specifically, one that is available under the trade name Kraton, G 00094. In any case, it is preferred to use diblock, triblock, radi00096 alblock and / or multiblock copolymers. 00097 This leads to a solid or gel-like structure of the 00098 medium element.
  • paraffini00103 hydrocarbons macro paraffins, intermediate 00104 paraffins, microcrystalline waxes.
  • 00105 solid, paraffinic hydrocarbons become O 01/38453
  • 00106 obtained from vacuum distillation fractions by various 00107 technological separating cuts, which require a certain amount of oil. This may well be 00109. In addition, it can also be synthetic 00110 paraffins, which are obtained in the Fischer-Tropsch process 00111. FT paraffins of this type mainly consist of normal paraffins. More than 90% are usually N-alkanes. The rest are iso-alkanes. The chain 00114 length is from C30 to about C100, with a gradation 00115 (also solidification point EP) from approx. 86 ° C to 105 ° C. With regard to 00116 FT paraffins in general, reference is also made, for example, to the literature in A.
  • 00119 00120 The thickener can be added 00121 as required. A common proportion is 10 to 15% based on 00122 the total mass of a medium particle described. It is essential that when the heat transfer fluid or its vapor form flows through the heat transfer, the 00125 paraffin does not trigger.
  • 00126 00127 The working temperature of such a latent heat accumulator 00128 body can be set sensitively 00130 in particular by the pressure or negative pressure prevailing in the latent heat accumulator. The melting temperature of the latent heat storage material (paraffin) 00132 must also be selected or set accordingly.
  • latent heat storage 00135 is advantageously also further utilized in that 00136 the latent heat storage is completely filled with the latent heat storage material, leaving the 00137 flow paths mentioned. It is no longer necessary 00139 certain freedom, in the sense of freedom from latent heat O 01/38453
  • 00140 material to be stored in the latent heat storage 00142 00143
  • 00144 is first of all water.
  • 00145 can also be a liquid (in the condensed state) 00146, which contains, for example, alcohol or consists of alcohol00147. The latter is particularly the case when the latent heat 00149 is used to store refrigeration 00149.
  • 00150 00151 it is preferred 00152 that the latent heat store has an underpressure of 00153.
  • the medium parts are preferably ver00154 equally small. However, the size can also be set to almost 00155.
  • the Medi00156 parts are designed with size dimensions in the range from 1/10 to 00157 1/1000 of a cross-sectional diameter of the latent heat store 00158.
  • 00159 00160 In absolute terms, in the case of spherical medium 00161 parts, those with a diameter of 1 to 2 00162 or approximately up to 5 mm.
  • 00163 00164 The medium element can be set to a value in terms of its density at 00165 room temperature or at the withdrawal temperature of the La00166 tent heat accumulator, which is 00167 higher than the corresponding value of the heat transfer medium. Then it is ensured that the medium element or elements are located at 00170 bottom of the memory when they are saved.
  • 00171 can also be provided for the value to be set lower, 00172, so that the medium elements then float at the top in 00173 of the heat transport medium. It can also be O 01/38453
  • 00174 can be seen that the corresponding value is set equal to the value 00175 of the heat transport medium.
  • a 00178 medium element is also elastically deformable.
  • a medium element 00179 can also have a gas inclusion, such as an air 00180 inclusion.
  • a medium element can also have open pores 00181. It can also have a porous structure.
  • 00183 00184 The invention is further explained below with the aid of the drawing 00185, which, however, only represents an exemplary embodiment.
  • the 00187 single figure 00188 00189 shows a schematic cross-sectional view of a 00190 latent heat storage device, filled with medium elements 00192 that are small compared to 00191 to the storage device.
  • a latent heat storage device 00195 which consists of a storage container 2 and latent heat storage material 3 arranged therein.
  • 00197 is in the latent heat storage 1, a 00198 heat transport medium 4 in the form of water.
  • 00199 00200 The separate medium elements 3 are spherical in the embodiment.
  • Flow paths 00203 5 are left between the individual medium elements 3 arranged above one another, in the case of the dynamic latent heat 00204 storage for the evaporating heat transport medium 4.
  • 00205 00206 If, in the case of the dynamic latent heat storage 1 00207, this is heated in its lower region U, 00208 evaporate the heat transfer medium 4 and in its O 01/38453
  • the heat transfer medium will then condense.
  • de heat charges the latent heat store 1 by heating the 00212 small medium elements 3.
  • the paraffin in the 00213 medium elements undergoes a 00214 phase change and thus stores large amounts of heat 00215 in comparison.
  • the 00217 thickener such as the Kraton G, for example, 00218, ensures that the geometric shape of the medium element 00219 tes is retained. There is also no leakage of paraffin or the like.
  • the mixing ratio of Paraf00223 fin to Kraton G is about 10%.
  • 00224 00225 Due to the short-term storage of large amounts of heat 00226, such a dynamic latent heat store 1 00227 can be used, for example, as a thermal fuse.
  • DE 35 24 242 AI is also referred in particular 00229 in this context. If, for example, 00230 heat that is released in the event of unit failures or the like has to be temporarily removed and stored 00232. 00233 00234 There are also a number of other application options. In the simplest case, about 00236 for storing heat in the home heating area.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Combustion & Propulsion (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Thermotherapy And Cooling Therapy Devices (AREA)

Abstract

L'invention concerne un régulateur thermique à changement d'état (1), par ex. un régulateur thermique dynamique à changement d'état comprenant un matériau de régulation thermique (3) à base, par ex., de paraffine, de sel ou de graisse et un milieu transportant la chaleur (4) passant éventuellement par des phases d'ébullition et de condensation. L'invention, qui vise à améliorer le régulateur thermique à changement d'état, est caractérisée en ce que le matériau de régulation thermique (3) est constitué, comparativement au régulateur thermique à changement d'état (1), de petits éléments indépendants et non couverts, entre lesquels sont ménagées des voies d'écoulement (5) pour le milieu transportant la chaleur (4) et en ce que le matériau de régulation thermique (3) contient un épaississant.
EP00985065A 1999-11-23 2000-11-18 Regulateur thermique dynamique a changement d'etat Withdrawn EP1240270A1 (fr)

Applications Claiming Priority (7)

Application Number Priority Date Filing Date Title
DE19956323 1999-11-23
DE19956323 1999-11-23
DE10025113 2000-05-20
DE10025113 2000-05-20
DE10048536A DE10048536A1 (de) 1999-11-23 2000-09-30 Dynamischer Latentwärmespeicher
DE10048536 2000-09-30
PCT/EP2000/011497 WO2001038453A1 (fr) 1999-11-23 2000-11-18 Regulateur thermique dynamique a changement d'etat

Publications (1)

Publication Number Publication Date
EP1240270A1 true EP1240270A1 (fr) 2002-09-18

Family

ID=27213872

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00985065A Withdrawn EP1240270A1 (fr) 1999-11-23 2000-11-18 Regulateur thermique dynamique a changement d'etat

Country Status (3)

Country Link
EP (1) EP1240270A1 (fr)
AU (1) AU2160601A (fr)
WO (1) WO2001038453A1 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102008005721C5 (de) 2008-01-23 2012-04-19 Sasol Germany Gmbh Verfahren zur Herstellung eines Latentwärmespeichermaterials
DE102011053308A1 (de) 2011-09-06 2013-03-07 Biologic Gmbh Phasenwechselmaterial-Zusammensetzung und daraus hergestelltes Latentwärmespeicherelement; Verfahren zur Herstellung eines Latentwärmespeicherelements und Verfahren zur Konditionierung eines Mediums mittels des Latentwärmespeicherelements
DE102013005424A1 (de) 2013-03-27 2014-10-02 Egon Schmitz Latentwärmespeicheranordnung
EP3092301A4 (fr) 2014-01-06 2017-06-07 King Abdullah University Of Science And Technology Bioréacteur à membrane électrochimique anaérobie et procédé de traitement des eaux usées

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2279052A1 (fr) * 1974-03-01 1976-02-13 Commissariat Energie Atomique Procede d'accumulation thermique et accumulateur thermique a chaleur latente de fusion et a contact direct
DE2741829A1 (de) * 1977-09-16 1979-03-22 Dornier System Gmbh Latentwaermespeicher
DE3325943C1 (de) 1983-07-19 1985-02-21 Herberts Gmbh, 5600 Wuppertal Traenkharzmassen und deren Verwendung zum Isolieren von elektrischen Wicklungen
FR2566789B1 (fr) * 1984-06-29 1986-12-26 Centre Nat Rech Scient Procede de preparation de materiaux composites pour le stockage et le transport de l'energie
DD236862A3 (de) 1984-08-09 1986-06-25 Bauakademie Ddr Latentwaermespeicher mit nicht zersetzend schmelzenden stoffen
DE3524242A1 (de) 1985-07-06 1987-01-08 Philips Patentverwaltung Kuehlanordnung fuer waermeabgebende elektrische bauteile
EP0377473A3 (fr) * 1986-04-08 1990-08-16 Kubota Corporation Capsules de stockage de la chaleur latente contenant une composition pour stocker la chaleur et appareil de contrôle de la température utilisant lesdites capsules
DD270310A1 (de) 1988-03-24 1989-07-26 Freiberg Bergakademie SPEICHERFUELLUNG MIT EINER SPEICHERTEMPERATUR VON > 100 GRAD CELSIUS FUER DYNAMISCHE LATENTWAERMESPEICHER
US5718835A (en) * 1989-08-04 1998-02-17 Mitsubishi Cable Industries Heat storage composition
JPH059467A (ja) * 1991-06-28 1993-01-19 Mitsubishi Cable Ind Ltd ヘアーカーラー用蓄熱材
DE4122659A1 (de) 1991-07-09 1993-01-14 Herrmann Gmbh & Co Kg Fuellmedium fuer einen dynamischen latentwaermespeicher
DE19756006A1 (de) * 1997-12-17 1999-06-24 Koegler Stefan Dipl Ing Fh Verfahren zur Energiespeicherung in Phasenwechselmedien und Anordnung zur Durchführung des Verfahrens

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO0138453A1 *

Also Published As

Publication number Publication date
WO2001038453A1 (fr) 2001-05-31
AU2160601A (en) 2001-06-04

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