WO2008049390A1 - Échangeur de chaleur - Google Patents

Échangeur de chaleur Download PDF

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Publication number
WO2008049390A1
WO2008049390A1 PCT/DE2007/001830 DE2007001830W WO2008049390A1 WO 2008049390 A1 WO2008049390 A1 WO 2008049390A1 DE 2007001830 W DE2007001830 W DE 2007001830W WO 2008049390 A1 WO2008049390 A1 WO 2008049390A1
Authority
WO
WIPO (PCT)
Prior art keywords
carbon nanotubes
radiator
heat exchanger
web
heat
Prior art date
Application number
PCT/DE2007/001830
Other languages
German (de)
English (en)
Inventor
Rainer Schmitt
Original Assignee
Rainer Schmitt
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 Rainer Schmitt filed Critical Rainer Schmitt
Priority to EP07817665A priority Critical patent/EP2084482A1/fr
Publication of WO2008049390A1 publication Critical patent/WO2008049390A1/fr

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F13/00—Arrangements for modifying heat-transfer, e.g. increasing, decreasing
    • F28F13/18—Arrangements for modifying heat-transfer, e.g. increasing, decreasing by applying coatings, e.g. radiation-absorbing, radiation-reflecting; by surface treatment, e.g. polishing
    • F28F13/185—Heat-exchange surfaces provided with microstructures or with porous coatings
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B82—NANOTECHNOLOGY
    • B82Y—SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
    • B82Y30/00—Nanotechnology for materials or surface science, e.g. nanocomposites
    • 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
    • F28D1/00—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators
    • F28D1/02—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid
    • F28D1/03—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with plate-like or laminated conduits
    • F28D1/0308—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with plate-like or laminated conduits the conduits being formed by paired plates touching each other
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F21/00—Constructions of heat-exchange apparatus characterised by the selection of particular materials
    • F28F21/02—Constructions of heat-exchange apparatus characterised by the selection of particular materials of carbon, e.g. graphite
    • 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
    • F28F3/02—Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations
    • F28F3/025—Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations the means being corrugated, plate-like elements
    • 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
    • F28D21/00—Heat-exchange apparatus not covered by any of the groups F28D1/00 - F28D20/00
    • F28D2021/0019—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for
    • F28D2021/0035—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for for domestic or space heating, e.g. heating radiators
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B2214/00—Aspects relating to resistive heating, induction heating and heating using microwaves, covered by groups H05B3/00, H05B6/00
    • H05B2214/04—Heating means manufactured by using nanotechnology
    • 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]

Definitions

  • the invention relates to a heat exchanger.
  • DE 10 2004 044 352 A1 discloses a heating conductor for a heating device of an electrical heating device, preferably an electric cooking field, which generates heat by current flow.
  • the material of the heat conductor has carbon nanotubes.
  • DE 20 2004 017 339 U1 shows a thermal compound which consists of 10 to 80% by weight of a filler based on graphite powder and 20 to 90% by weight of a matrix material based on oil, fat or wax wherein carbon nanotubes may be added to the filler.
  • the thermal grease is used to make a thermally conductive connection between an electronic component, such as an electronic component. a computer chip, or an electrical component, e.g. a power semiconductor, and a cooling system used.
  • Radiators are usually made of steel, which has a thermal conductivity of about 50 W / (mK), and Wall heaters are often made from copper pipes with a thermal conductivity of approx. 380 W / (mK). Radiators are usually flowed through by a warm fluid, in particular by water, wherein the heat transfer surfaces in the region of water pockets of the radiator are in direct contact with the warm fluid and the air to be heated.
  • the relatively low thermal conductivity of steel or copper proves to be problematic, especially in connection with heating systems, such as a heat pump, which are operated at a relatively low flow temperature, since the heating surface must be relatively large in order to comfortably heat a living space.
  • CNTs carbon nanotubes
  • the carbon nanotubes Due to their good thermal conductivity, the carbon nanotubes improve the efficiency compared to conventional heat exchangers, whereby it does not matter whether the heat exchangers are used for heating or cooling and with which media they are operated. As a result, given a given amount of heat to be transferred, the heat transfer surface can be dimensioned relatively small and, if necessary, due to the mechanical strength values and the density of the carbon nanotubes. also thin-walled lightweight components can be provided. Of course, it is conceivable to manufacture the entire heat exchanger essentially from carbon nanotubes using a suitable binder.
  • a heat exchanger is a device by means of which a medium transfers heat to another medium without the media coming into direct contact with one another.
  • Heat exchangers are both radiators and pipes, for example, for underfloor heating, and Wandsammlungregister or in a household electric heated kettle available. But also a screed, plaster or floor covering with associated floor or wall heating is a heat exchanger in the context of the invention.
  • the heat exchanger has a surface coating made of carbon at least on one side.
  • Nanotubes consists of an alloy or material mixture with carbon nanotubes or is provided with ribs of carbon nanotubes.
  • the surface coating of, for example, a metallic heat exchanger already involves efficient heat transfer from the warm side of the heat exchanger to the cold side.
  • metals are alloyed with carbon nanotubes or carbon nanotubes are mixed with a variety of materials such as plastics, screed or plaster, the percentage maximum proportions are easy to determine for the expert, since he, for example, the composition of known materials, in particular with Carbon fibers are reinforced, can orient.
  • the water pockets a previously described heat exchanger is assigned.
  • essentially existing machines can be used for the production of radiators and design features of the different radiators and their fastening devices can be adopted unchanged.
  • a carbon nanotube comprehensive web is arranged at least in a water pocket. The web can be poured for heat conduction into corresponding recesses or slots in the water pocket and is flowed around directly by the warm water.
  • the web communicates with heat transfer surfaces, in particular on the inner or back, of the radiator in connection.
  • a steel radiator is welded together to form water pockets from stamped and formed half-shells.
  • the carbon nanotube existing or alloyed with it or surface-coated web can be arranged on the water-bearing side of the water bag of the radiator, so its heat transfer surface, after which a fast conductive additional heat transfer surface is available.
  • the web has a ribbed cross section. The bridge can therefore be designed fir-tree-like.
  • the web is preferably fixed in the water bag by gluing.
  • the bridge projects into the open air.
  • further heat conduction ribs made of steel can be provided.
  • Fig.l is a schematic partial sectional view of a radiator according to the invention.
  • FIG. 2 shows a further schematic partial sectional view of the radiator according to FIG. 1.
  • the radiator is a flat radiator made of steel with two serving as a heat exchanger walls 1 2, which are deformed so that after their welding vertical water pockets 3 are formed, which are fluidly connected to a flow 4 and a return 5.
  • a wall 2 ribs 6 are attached.
  • 3 webs 7 are glued into the water pockets, which have a ribbed cross-section to increase their surface.
  • the webs 7 are either coated with a material containing carbon nanotubes or consist of an alloy with carbon nanotubes and thus have a good thermal conductivity.
  • the walls 2 serving as heat exchangers 1 are manufactured either from an alloy containing carbon nanotubes or with carbon dioxide. nanotubes surface-coated.
  • the carbon nanotube having components, such as the walls 2 or the webs 7, are directly connected to the warm water in the water bags 3 in connection and derive their heat due to their good thermal conductivity quickly. Accordingly, the ent ⁇ long flowing air to the radiator heats up very quickly by convection. Also present in the region of the webs 7 on the outside of the corresponding wall 2 ribs 6, which may also have carbon nanotubes, heat relatively quickly by the prevailing temperature differences. Overall, the radiator can release the heat required in a room due to the carbon nanotubes relatively quickly to the environment, which is why the hot water heating system can be operated with a comparatively low flow temperature.

Abstract

L'invention concerne un corps chauffant comprenant des poches d'eau (3) auxquelles est associé un échangeur de chaleur (1) pourvu de nanotubes de carbone.
PCT/DE2007/001830 2006-10-26 2007-10-15 Échangeur de chaleur WO2008049390A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP07817665A EP2084482A1 (fr) 2006-10-26 2007-10-15 Échangeur de chaleur

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102006050508.5 2006-10-26
DE102006050508A DE102006050508B4 (de) 2006-10-26 2006-10-26 Heizkörper mit Wassertaschen

Publications (1)

Publication Number Publication Date
WO2008049390A1 true WO2008049390A1 (fr) 2008-05-02

Family

ID=39007321

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DE2007/001830 WO2008049390A1 (fr) 2006-10-26 2007-10-15 Échangeur de chaleur

Country Status (3)

Country Link
EP (1) EP2084482A1 (fr)
DE (1) DE102006050508B4 (fr)
WO (1) WO2008049390A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2511806C1 (ru) * 2012-10-15 2014-04-10 Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "Тамбовский государственный технический университет" ФГБОУ ВПО ТГТУ Способ повышения теплоотдачи с помощью микротурбулизирующих частиц
DE102018218831B4 (de) * 2018-11-05 2021-09-30 Robert Bosch Gmbh Kühlkörper sowie Kühlanordnung mit Kühlkörper

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20030116503A1 (en) * 2001-12-21 2003-06-26 Yong Wang Carbon nanotube-containing structures, methods of making, and processes using same
WO2004027336A1 (fr) * 2002-09-17 2004-04-01 Midwest Research Institute Systemes d'echange de chaleur de nanotubes en carbone
US20050092467A1 (en) * 2003-10-31 2005-05-05 Hon Hai Precision Industry Co., Ltd. Heat pipe operating fluid, heat pipe, and method for manufacturing the heat pipe
US20050126766A1 (en) * 2003-09-16 2005-06-16 Koila,Inc. Nanostructure augmentation of surfaces for enhanced thermal transfer with improved contact
US20050136248A1 (en) * 2003-12-23 2005-06-23 Charles Leu Thermal interface material and method for manufacturing same
US20050238810A1 (en) * 2004-04-26 2005-10-27 Mainstream Engineering Corp. Nanotube/metal substrate composites and methods for producing such composites

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE29511076U1 (de) * 1995-07-07 1995-09-21 Koenig Christel Heizkörperanordnung
DE19962159A1 (de) * 1999-12-22 2001-07-12 Michael Fischer Verfahren zur Herstellung eines Heizkörpers
JP2005228855A (ja) * 2004-02-12 2005-08-25 Yamagishi Kogyo:Kk 放熱器
DE102004044352B4 (de) * 2004-09-09 2010-09-02 E.G.O. Elektro-Gerätebau GmbH Heizeinrichtung für ein Elektrowärmegerät
DE202004017339U1 (de) * 2004-11-08 2005-02-17 Sgl Carbon Ag Wärmeleitpaste für elektronische und elektrische Bauelemente

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20030116503A1 (en) * 2001-12-21 2003-06-26 Yong Wang Carbon nanotube-containing structures, methods of making, and processes using same
WO2004027336A1 (fr) * 2002-09-17 2004-04-01 Midwest Research Institute Systemes d'echange de chaleur de nanotubes en carbone
US20050126766A1 (en) * 2003-09-16 2005-06-16 Koila,Inc. Nanostructure augmentation of surfaces for enhanced thermal transfer with improved contact
US20050092467A1 (en) * 2003-10-31 2005-05-05 Hon Hai Precision Industry Co., Ltd. Heat pipe operating fluid, heat pipe, and method for manufacturing the heat pipe
US20050136248A1 (en) * 2003-12-23 2005-06-23 Charles Leu Thermal interface material and method for manufacturing same
US20050238810A1 (en) * 2004-04-26 2005-10-27 Mainstream Engineering Corp. Nanotube/metal substrate composites and methods for producing such composites

Also Published As

Publication number Publication date
DE102006050508A1 (de) 2008-04-30
DE102006050508B4 (de) 2009-04-09
EP2084482A1 (fr) 2009-08-05

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