WO2007017273A2 - Echangeur thermique cylindrique en contact thermique avec un adsorbant - Google Patents

Echangeur thermique cylindrique en contact thermique avec un adsorbant Download PDF

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Publication number
WO2007017273A2
WO2007017273A2 PCT/EP2006/007892 EP2006007892W WO2007017273A2 WO 2007017273 A2 WO2007017273 A2 WO 2007017273A2 EP 2006007892 W EP2006007892 W EP 2006007892W WO 2007017273 A2 WO2007017273 A2 WO 2007017273A2
Authority
WO
WIPO (PCT)
Prior art keywords
heat exchanger
exchanger plate
adsorbent
cylindrical
plate
Prior art date
Application number
PCT/EP2006/007892
Other languages
German (de)
English (en)
Other versions
WO2007017273A3 (fr
Inventor
Ferdinand Schmidt
Lena Schnabel
Hans-Martin Henning
Tomas Nunez
Stefan Henninger
Original Assignee
Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V.
Albert-Ludwig-Universität Freiburg
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 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V., Albert-Ludwig-Universität Freiburg filed Critical Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V.
Publication of WO2007017273A2 publication Critical patent/WO2007017273A2/fr
Publication of WO2007017273A3 publication Critical patent/WO2007017273A3/fr

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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
    • F28D9/00—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
    • F28D9/04—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being formed by spirally-wound plates or laminae
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B35/00—Boiler-absorbers, i.e. boilers usable for absorption or adsorption
    • F25B35/04—Boiler-absorbers, i.e. boilers usable for absorption or adsorption using a solid as sorbent
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F3/00—Plate-like or laminated elements; Assemblies of plate-like or laminated elements
    • F28F3/12—Elements constructed in the shape of a hollow panel, e.g. with channels
    • 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
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A30/00—Adapting or protecting infrastructure or their operation
    • Y02A30/27—Relating to heating, ventilation or air conditioning [HVAC] technologies
    • 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
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
    • 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
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
    • Y02B30/62—Absorption based systems

Definitions

  • the invention relates to a fluidizable by a fluid cylindrical heat exchanger, which is in thermal contact with an adsorbent
  • Heat exchanger can be achieved with a patented by Fa UOP structure, which is described in (US 6,102,107)
  • the adsorber is designed as a bundle of parallel plates which are pierced vertically by a tube bundle
  • the heat exchanger fluid flows in the tubes, and the adsorbent is as a layer applied on both sides of the plates
  • the adsorbent is incorporated into a polymer film whose structure is described in (WO 02/45847 / PCT / US01 / 46413)
  • the adsorber can be such a good thermal connection of the adsorbent to the Heat exchanger surface achieve that the heat transfer to the heat exchanger fluid in the heat exchanger is the limiting factor for the achievable power density of the heat pump
  • a problem largely independent of the above problems is the limitation of the rate of adsorption by the transport of the gaseous Adsorptivs to the micro- or mesopores of the solid adsorbent, where the adsorption heat is released This problem occurs especially in adsorptive with low vapor pressure, such as water or methanol
  • adsorptive with low vapor pressure such as water or methanol
  • the largest possible adsorbent layers are desired However, depending on the structure of the layer, they can represent a high diffusion barrier for the adsorbing gas.
  • a solution approach for this problem has been shown in the already cited UOP patent (WO 02/45847 / PCT / US01 / 46413).
  • a sufficient vapor permeability of the adsorbent layer is achieved here by the incorporation of the adsorbent microparticles in a good heat-conducting and vapor-permeable polymer matrix
  • Evaporator / condenser unit be advantageous in this construction is then on a low thermal mass of the evaporator / condenser unit to pay attention to an advantageous implementation DE 101 38 592 A1
  • the evaporator / condenser is formed therein by a spiral tube, which rests against the profiled bottom of the vacuum-tight container
  • the invention has for its object to provide a simple heat exchanger plate, with which the heat released during the adsorption heat can be dissipated efficiently and the heat required in the desorption can be fed easily Problem is also to provide a method for producing a corresponding heat exchanger plate
  • a simple cylindrical heat exchanger can be provided by providing a heat exchanger fluid (hereinafter always referred to as a fluid) through-flowable, in thermal contact with an adsorbent, heat exchanger plate having a substantially elongate rectangular basic shape coiled therein
  • a heat exchanger plate thus gives a cylindrical shape is advantageous in that a compact heat exchanger can be created in which the adsorbent mass is high compared to the total mass
  • this structure allows a relatively simple production, since it is sufficient to provide a larger heat exchanger plate, which is then wound up
  • there is the problem that for each heat exchanger pl Even if there are technologies which provide simple possibilities for this, it is nevertheless advantageous to avoid the expense. Since all connections are potentially leaking, the result is a higher level of reliability
  • the use of a single, very large heat exchanger plate is ruled out since it can not provide a compact heat exchanger plate
  • the heat exchanger plate can be connected in several places by fluid ducts running across the width of the heat exchanger plate. This ensures good heat removal by the fluid
  • an insulating layer is advantageous, which reduces the radial heat transport in the wound heat exchanger plate
  • This insulating layer which is located between the individual windings, can also serve as a transport layer for the adsorptive
  • a high surface of the heat exchanger plate is useful, especially if the adsorbent is applied directly to the heat exchanger plate
  • a high surface of the heat exchanger plate is achieved if the heat exchanger plate on its outer sides, ie with the adsorbent and not Open porous metal sponge structures have a very high surface area in comparison to their mass.
  • An adsorbent can be applied to these surfaces.
  • Closed-loop foam structures can be applied by mechanical or mechanical means Machining (z B compression or punching to break up the pore walls) are converted into open-pored sponges
  • a semifinished product provided with blowing agent, for example by rolling.
  • This semifinished product can be foamed, whereby typically a closed-loop foam structure is produced, which can be converted into an open-pored structure
  • the semifinished product serves as additional stabilization of the sheets of the heat exchanger plate.
  • the fluid channels are produced by swelling of the sheets, thinner sheets can be used, in particular if the frothing after the swelling of the sheets for the preparation of the fluid channels takes place
  • the metal foam structure and the plate of the heat exchanger plate can provide two elements which are assembled into one unit. By appropriate compression during assembly into a unit, good thermal contact can be made between the metal foam structure and the sheet. The assembly of two elements offers the advantage that the metal foam structure can be manufactured separately.
  • a suitable form for the adsorbent is an activated carbon fiber mat.
  • Such activated carbon fiber mats may contain both isotropic arrangements of the fibers and directional arrangements (e.g., in woven or combed mats).
  • Activated carbon fiber mats can be pressed so that a high density of the
  • Adsorbent results.
  • the adsorbent in the form of activated carbon fiber mats can be easily handled during transportation.
  • an activated carbon fiber mat can be pressed against the heat exchanger plate. This can be ensured in a simple manner, a good thermal contact between adsorbent and heat exchanger plate. This pressing takes place here when winding the heat exchanger plate.
  • the cylindrical heat exchanger can be designed for different requirements. If large gaps are chosen, the adsorbent mass is large compared to the total mass. However, the heat transfer is worse by the larger extent of the adsorbent. If the cylindrical heat exchanger used primarily as a heat storage, which is rarely loaded or unloaded, but this is not a problem. When using the heat exchanger in a chiller or
  • Air conditioning system the spaces are smaller to choose, since a good heat transfer to achieve short loading and unloading of the adsorbent is required. In this case, it is admittedly that the adsorbent mass is lower in comparison to the total mass of the heat exchanger, resulting in greater losses due to the heating and cooling of the heat exchanger. If recesses are provided in the heat exchanger plate between the fluid channels, the working medium, as a rule water, can reach the adsorbent better. This advantage outweighs the disadvantage of the deterioration caused by the recesses heat transfer in the heat exchanger plate with a suitable size of the recesses.
  • the shape and size of these recesses is selected so that the stationary webs of the heat exchanger plate have an anisotropic thermal conductivity, which is to the fluid channels, ie perpendicular to the fluid channels, greater than parallel to the channels.
  • the mechanical stability of the heat exchanger plate should not be affected too much.
  • a preferred form of the recesses, which meets the above requirements, is the shape of elongated rhombuses, between which stand crossed webs of the heat exchanger plate.
  • the recesses in the heat exchanger plate are not completely punched out and removed, but the plate is only slit and the resulting element is bent out of the plane of the plate.
  • the adsorbent in granular form in the space.
  • the adsorbent is often available in granular form and can thus be filled easily.
  • the first adsorbent consists of a highly compressed activated carbon fiber mat (with chemically hydrophilized fibers in the case of water as Adsorptiv), which was pressed by means of a studded roller, so that the mat at a distance of a few millimeters through holes
  • Adsorptiv chemically hydrophilized fibers in the case of water as Adsorptiv
  • a second adsorbent which may be present as an adsorbent composite system
  • an open-cell metal foam into which a microporous or mesoporous adsorbent has been introduced, for example, by Aufk ⁇ stalliation is suitable.
  • the material transport properties of this composite Mate ⁇ als are when selecting a
  • Metal sponge with sufficiently high porosity very good
  • the adsorption properties of the material ie the integral adsorption heat over a sample pump cycle per unit volume of the sponge
  • the mass fraction of inert (non-adsorbent) metal in this composite would not be so high Ratio of adsorbent to heat exchanger mass (or adsorption heat to sensitive heat) reach as with the first adsorbent
  • the interspaces between the fluid channels in the heat exchanger plate are first filled with mats of the first adsorbent (eg 4 mm layer thickness).
  • An approximately equally thick layer of the metal sponge composite is placed over the entire width of the heat exchanger plate.
  • a further layer of the first adsorbent is then placed on top of it, then the insulating layer and then the mirror-image sandwich system mat-metal foam-mat, which is pressed against the back of the heat exchanger plate during winding
  • a substantially elongated heat exchanger plate is particularly suitable.
  • a rectangular, elongated heat exchanger plate is also provided.
  • An adsorbent is provided which is brought into thermal contact with the heat exchanger plate.
  • the heat exchanger plate becomes a cylindrical one Form wound up
  • two sequences are conceivable here. On the one hand, it is possible to wind the heat exchanger plate first into a cylindrical shape and into the one created during winding
  • a particularly suitable possibility for producing a cylindrical heat exchanger according to the invention results when an activated carbon fiber mat is used, which is placed on the heat exchanger plate and is pressed during winding of the heat exchanger plate. By pressing a good thermal contact between the heat exchanger plate and adsorbent is achieved on the one hand.
  • the pressing also enables the carbon fiber mat to be pressed and the density of the adsorbent to be increased as desired. This makes a compact design possible. In addition, the heat conduction within the adsorbent can be improved.
  • the activated carbon fiber mat in particular to a density of 1 50 to 800 kg / m 3. Subsequently, the pre-pressed activated carbon fiber mat can be placed on the heat exchanger plate and the arrangement of heat exchanger plate and activated carbon fiber mat is wound together. Winding an already pressed activated carbon fiber mat can be easier than winding an activated carbon fiber mat, which still has to be completely pressed.
  • a particularly suitable method for producing the heat exchanger plate is the so-called Rollbond method. Two sheets are rolled together. In selected areas, a release agent is applied to at least one of the sheets on the side facing the other sheet. During subsequent expansion of the sheets, channels are formed at the locations where the release agent has been applied. In these channels, the fluid can flow through for heat transfer.
  • FIG. 1 shows a rolled up to a cylindrical heat exchanger heat exchanger plate.
  • Figure 2 shows a cross section of a heat exchanger plate with an activated carbon fiber mat.
  • 1 shows a wound up to a cylindrical heat exchanger heat exchanger plate 4.
  • the manifolds 1 run near the long edges of the heat exchanger plate 4.
  • the manifolds 1 are connected by much narrower fluid channels 2.
  • In order to allow a radial vapor transport and to reduce the heat exchanger mass holes 3 are arranged at suitable locations in the heat exchanger plate
  • Figure 2 shows a cross section of a heat exchanger plate 4 with activated carbon fiber mats.
  • the pre-pressed mats are placed on the heat exchanger plate 4 so that the bottom layer 6 fills the spaces between the fluid channels 2 and one or more further layers 7 extend over the entire plate.
  • suitable channels for steam transport 5 are impressed.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Sorption Type Refrigeration Machines (AREA)

Abstract

L'invention concerne un échangeur thermique cylindrique comportant une bande (4) d'échange thermique traversée par un fluide et en contact avec un adsorbant (6, 7), cette bande ayant une forme de base rectangulaire sensiblement allongée, deux arêtes longues opposées et deux arêtes courtes reliant les arêtes longues. La présente invention porte également sur un procédé pour fabriquer un échangeur thermique cylindrique, ce procédé comportant les opérations suivantes: préparer une bande (4) d'échange thermique sensiblement allongée, préparer un adsorbant (6, 7) mis en contact thermique avec la bande (4) d'échange thermique, enrouler la bande (4) d'échange thermique pour former un cylindre.
PCT/EP2006/007892 2005-08-10 2006-08-09 Echangeur thermique cylindrique en contact thermique avec un adsorbant WO2007017273A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102005037763A DE102005037763B4 (de) 2005-08-10 2005-08-10 Zylinderförmiger Wärmetauscher in thermischem Kontakt mit einem Adsorbens
DE102005037763.7 2005-08-10

Publications (2)

Publication Number Publication Date
WO2007017273A2 true WO2007017273A2 (fr) 2007-02-15
WO2007017273A3 WO2007017273A3 (fr) 2007-07-26

Family

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Application Number Title Priority Date Filing Date
PCT/EP2006/007892 WO2007017273A2 (fr) 2005-08-10 2006-08-09 Echangeur thermique cylindrique en contact thermique avec un adsorbant

Country Status (2)

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DE (1) DE102005037763B4 (fr)
WO (1) WO2007017273A2 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1770344A3 (fr) * 2005-09-30 2010-04-14 Pratt & Whitney Canada Corp. Echangeur de chaleur à noyau de mousse et méthode
WO2010139316A3 (fr) * 2009-06-05 2011-03-24 Danfoss Compressors Gmbh Régénérateur, en particulier pour une installation de refroidissement à cycle de stirling
WO2013142924A1 (fr) * 2012-03-16 2013-10-03 Ateliers De Construction De Thermo-Echangeurs Sa Corps d'échangeur et échangeur
AT518182B1 (de) * 2016-07-22 2017-08-15 Ecotherm Austria Gmbh Vorrichtung zum Erwärmen von Brauchwasser
US10527328B2 (en) 2017-04-05 2020-01-07 International Business Machines Corporation Coiled adsorption heat exchanger

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102013226732A1 (de) * 2013-12-19 2015-06-25 MAHLE Behr GmbH & Co. KG Adsorberstruktur
DE102016226163A1 (de) * 2016-12-23 2018-06-28 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Wärmeübertrager, Klimamaschine und Verfahren zur Kondensation und Verdampfung

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2048452A (en) * 1979-04-26 1980-12-10 Chaffoteaux Et Maury Heat exchanger, eg for heating water
JPS61175283A (ja) * 1985-01-30 1986-08-06 Hitachi Ltd 吸着圧縮機
EP0488287A1 (fr) * 1990-11-28 1992-06-03 Osaka Gas Co., Ltd. Adsorbant de grande conductivité thermique
DE4112358A1 (de) * 1991-04-16 1992-10-22 Bayerische Motoren Werke Ag Zeolithformling mit einem metalltraeger
FR2693542A1 (fr) * 1992-07-10 1994-01-14 Bernier Jacques Réacteur de machine frigorifique chimique ou à adsorption solide/gaz.
WO1996024435A1 (fr) * 1995-02-06 1996-08-15 Graham John Bratton Materiau adsorbant
DE19860151A1 (de) * 1998-12-24 2000-07-06 Winkelmann & Pannhoff Gmbh & C Wärmeaustauscher

Family Cites Families (1)

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Publication number Priority date Publication date Assignee Title
DE50100110D1 (de) * 2000-08-04 2003-03-27 Vaillant Gmbh Sorptionswärmepumpe

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2048452A (en) * 1979-04-26 1980-12-10 Chaffoteaux Et Maury Heat exchanger, eg for heating water
JPS61175283A (ja) * 1985-01-30 1986-08-06 Hitachi Ltd 吸着圧縮機
EP0488287A1 (fr) * 1990-11-28 1992-06-03 Osaka Gas Co., Ltd. Adsorbant de grande conductivité thermique
DE4112358A1 (de) * 1991-04-16 1992-10-22 Bayerische Motoren Werke Ag Zeolithformling mit einem metalltraeger
FR2693542A1 (fr) * 1992-07-10 1994-01-14 Bernier Jacques Réacteur de machine frigorifique chimique ou à adsorption solide/gaz.
WO1996024435A1 (fr) * 1995-02-06 1996-08-15 Graham John Bratton Materiau adsorbant
DE19860151A1 (de) * 1998-12-24 2000-07-06 Winkelmann & Pannhoff Gmbh & C Wärmeaustauscher

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
WANG R Z ET AL: "EXPERIMENT ON A CONTINUOUS HEAT REGENERATIVE ADSORPTION REFRIGERATOR USING SPIRAL PLATE HEAT EXCHANGER AS ADSORBERS" APPLIED THERMAL ENGINEERING, PERGAMON, OXFORD, GB, Bd. 18, Nr. 1-2, Januar 1998 (1998-01), Seiten 13-23, XP008071476 ISSN: 1359-4311 *

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1770344A3 (fr) * 2005-09-30 2010-04-14 Pratt & Whitney Canada Corp. Echangeur de chaleur à noyau de mousse et méthode
WO2010139316A3 (fr) * 2009-06-05 2011-03-24 Danfoss Compressors Gmbh Régénérateur, en particulier pour une installation de refroidissement à cycle de stirling
WO2013142924A1 (fr) * 2012-03-16 2013-10-03 Ateliers De Construction De Thermo-Echangeurs Sa Corps d'échangeur et échangeur
US10072893B2 (en) 2012-03-16 2018-09-11 Ateliers De Construction De Thermo-Echangeurs Sa Exchanger body and exchanger
AT518182B1 (de) * 2016-07-22 2017-08-15 Ecotherm Austria Gmbh Vorrichtung zum Erwärmen von Brauchwasser
AT518182A4 (de) * 2016-07-22 2017-08-15 Ecotherm Austria Gmbh Vorrichtung zum Erwärmen von Brauchwasser
US10527328B2 (en) 2017-04-05 2020-01-07 International Business Machines Corporation Coiled adsorption heat exchanger
US10539349B2 (en) 2017-04-05 2020-01-21 International Business Machines Corporation Coiled adsorption heat exchanger

Also Published As

Publication number Publication date
DE102005037763A1 (de) 2007-02-22
DE102005037763B4 (de) 2008-07-24
WO2007017273A3 (fr) 2007-07-26

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