FR2552216A1 - Improvements made to heat exchanger pipes and to exchangers made with such pipes - Google Patents

Improvements made to heat exchanger pipes and to exchangers made with such pipes Download PDF

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Publication number
FR2552216A1
FR2552216A1 FR8315017A FR8315017A FR2552216A1 FR 2552216 A1 FR2552216 A1 FR 2552216A1 FR 8315017 A FR8315017 A FR 8315017A FR 8315017 A FR8315017 A FR 8315017A FR 2552216 A1 FR2552216 A1 FR 2552216A1
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FR
France
Prior art keywords
heat exchanger
cylinders
heat
exchanger tube
operate
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Granted
Application number
FR8315017A
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French (fr)
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FR2552216B1 (en
Inventor
Serge Boudigues
Andre Pelissier
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Office National dEtudes et de Recherches Aerospatiales ONERA
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Office National dEtudes et de Recherches Aerospatiales ONERA
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Priority to FR8315017A priority Critical patent/FR2552216B1/en
Priority to JP19562884A priority patent/JPS60169086A/en
Priority to EP84401885A priority patent/EP0138677A3/en
Publication of FR2552216A1 publication Critical patent/FR2552216A1/en
Application granted granted Critical
Publication of FR2552216B1 publication Critical patent/FR2552216B1/en
Expired legal-status Critical Current

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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
    • F28F1/00—Tubular elements; Assemblies of tubular elements
    • F28F1/10—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses
    • F28F1/42—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being both outside and inside the tubular element
    • F28F1/422—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being both outside and inside the tubular element with outside means integral with the tubular element and inside means integral with the tubular element
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02C—GAS-TURBINE PLANTS; AIR INTAKES FOR JET-PROPULSION PLANTS; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS
    • F02C7/00—Features, components parts, details or accessories, not provided for in, or of interest apart form groups F02C1/00 - F02C6/00; Air intakes for jet-propulsion plants
    • F02C7/08—Heating air supply before combustion, e.g. by exhaust gases
    • 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
    • F28D7/00—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
    • F28D7/10—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being arranged one within the other, e.g. concentrically
    • F28D7/103—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being arranged one within the other, e.g. concentrically consisting of more than two coaxial conduits or modules of more than two coaxial conduits
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F1/00—Tubular elements; Assemblies of tubular elements
    • F28F1/10—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses
    • F28F1/42—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being both outside and inside the tubular element
    • 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
    • F28F21/04—Constructions of heat-exchange apparatus characterised by the selection of particular materials of ceramic; of concrete; of natural stone
    • 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
    • F28F21/08—Constructions of heat-exchange apparatus characterised by the selection of particular materials of metal
    • F28F21/081—Heat exchange elements made from metals or metal alloys
    • F28F21/084—Heat exchange elements made from metals or metal alloys from aluminium or aluminium alloys
    • 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
    • F28F21/08—Constructions of heat-exchange apparatus characterised by the selection of particular materials of metal
    • F28F21/081—Heat exchange elements made from metals or metal alloys
    • F28F21/085—Heat exchange elements made from metals or metal alloys from copper or copper alloys
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2260/00—Function
    • F05D2260/20—Heat transfer, e.g. cooling
    • F05D2260/205—Cooling fluid recirculation, i.e. after cooling one or more components is the cooling fluid recovered and used elsewhere for other purposes

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Thermal Sciences (AREA)
  • Geometry (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Ceramic Engineering (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)

Abstract

The heat exchanger pipe consists of three concentric cylinders 1a, 1b, 1c. The two annular spaces 2a, 2b respectively carrying the flow of the fluids between which the heat exchanges must occur contain a number of radial ribs 3 connecting the cylinders 1a, 1b, 1c to each other. Heat exchanges by conduction through the wall of the intermediate cylinder 1b are augmented by heat exchanges by conduction through the ribs 3.

Description

Perfectionnements apportés aux tubes échangeurs de chaleur et aux échangeurs réalisés avec de tels tubes
L'invention est relative aux tubes échangeurs de chaleur et aux échangeurs réalisés avec de tels tubes
On connait des tubes échangeurs de chaleur constitués par deux cylindres concentriques, les fluides entre lesquels doivent s'opérer les échanges thermiques circulant respectivement. dans l'espace central et l'espace annulaire
Cependant, les échanges thermiques que l'on peut espérer avec une telle disposition sont limités à la transmission de chaleur par conduction à travers le cylindre intérieur.Improvements made to heat exchanger tubes and to exchangers made with such tubes
The invention relates to heat exchanger tubes and to exchangers produced with such tubes
Heat exchanger tubes are known which consist of two concentric cylinders, the fluids between which the heat exchanges circulating respectively must take place. in the central space and the annular space
However, the heat exchanges that can be expected with such an arrangement are limited to the transmission of heat by conduction through the inner cylinder.

Selon l'invention, le tube échangeur de chaleur est caractérisé par le fait qu'il est constitué par au moins trois cylindres concentriques et par le fait que les espaces annulaires dans lesquels circulent respectivement les fluides entre lesquels doivent s'opérer les échanges thermiques comportent une pluralité de nervures radiales reliant entre eux les susdits cylindres, ce grace à quoi les échanges de chaleur par conduction à travers la paroi du ou des cylindres interne médiaires sont augmentes des échanges de chaleur par conduction à travers les nervures. According to the invention, the heat exchanger tube is characterized by the fact that it is constituted by at least three concentric cylinders and by the fact that the annular spaces in which the fluids respectively circulate between which the heat exchanges must take place comprise a plurality of radial ribs interconnecting the aforementioned cylinders, whereby the heat exchange by conduction through the wall of the medial internal cylinder or cylinders is increased heat exchange by conduction through the ribs.

Les échangeurs de chaleur réalisés avec de tels tubes présentent des avantages de simplicité par rap- port aux échangeurs classiques à faisceau tubulaire
n el--et, dans ces échangeurs classiques, les tubes sont relativement fragiles et leur très grand nombre complique les problèmes d'assemblage sur les flasques d'extrémité.Heat exchangers made with such tubes have advantages of simplicity compared to conventional tube bundle exchangers.
n el - and, in these conventional exchangers, the tubes are relatively fragile and their very large number complicates the assembly problems on the end flanges.

Par exemple, un tube échangeur à trois cylindres concent@iques conforme à l'invention et comportant N nervures radiales (N nervures radiales dans l'espace annulaire interne, et N nervures radiales dans l'espace annulaire externe) remplacera N tubes d'un échangeur classique à faisceau tubulaire
Avantageusement, la forme des nervures radiales est telle que leur épaisseur est maximum au voisinage de la paroi du ou des cylindres intermédiaires à travers lesquels s'osèrent les échanges thermiques, et va en diminuant, vers les cylindres adjacents.For example, an exchanger tube with three concentric cylinders according to the invention and comprising N radial ribs (N radial ribs in the internal annular space, and N radial ribs in the external annular space) will replace N tubes with a classic tube bundle exchanger
Advantageously, the shape of the radial ribs is such that their thickness is maximum in the vicinity of the wall of the intermediate cylinder or cylinders through which the heat exchanges are daring, and decreases, towards the adjacent cylinders.

Au point de vue constitutif, et dans le cas d'un tube échangeur à trois cylindres concentriques, l'espace annulaire interne s'étend, à ses deux extrémités, au-del de l'espace annulaire externe, pour délimiter deux espaces d'extrémité par lesquels s'opèrent respectivement l'entrée et la sortie du fluide traversant ledit espace annulaire externe. Ces espaces d'extrémité sont également délimités par des flasques d'extrémité au nombre de quatre. From the constitutive point of view, and in the case of an exchanger tube with three concentric cylinders, the internal annular space extends, at its two ends, beyond the external annular space, to delimit two spaces of end via which the inlet and outlet of the fluid passing through said external annular space operate respectively. These end spaces are also delimited by end plates four in number.

Dans un échangeur réalisé avec de tels tubes, une disposition concentrique de ces tubes est avantageuse au point de vue encombrement. In an exchanger made with such tubes, a concentric arrangement of these tubes is advantageous from the point of view of space.

L'invention consiste, mises à part ces dispositions, en certaines autres dispositions qui s'utilisent de préférence en même temps et dont il sera plus explicitement question ci-après. The invention consists, apart from these provisions, in certain other provisions which are preferably used at the same time and which will be more explicitly discussed below.

L'invention pourra, de toute façon, être bien comprise à l'aide du complement de description qui suit, ainsi que des dessins cl-annexés, lesquels complément et dessins sont relatifs à un mode de réalisation préféré de lutin vention et ne comportent, bien entendu, aucun caractère limitatif. The invention may, in any case, be well understood with the aid of the additional description which follows, as well as of the appended drawings, which supplement and drawings relate to a preferred embodiment of the pixie vention and do not include, of course, no limiting character.

La fig. i, de ces dessins, montre, en coupe transversale, un tube échangeur établi conformément à l'inven- tion. Fig. i of these drawings shows, in cross section, an exchanger tube established in accordance with the invention.

La fig. 2 est une coupe selon Il-Il fig. 1. Fig. 2 is a section along Il-Il fig. 1.

La fig. 3 est une coupe longitudinale d'un tube échangeur conforme à l'inventIon monté dans un échangeur
La fig. 4 est une coupa transversale partielle d'un tube échangeur établi conformément à une disposition avantageuse de l'invention.Fig. 3 is a longitudinal section of an exchanger tube according to the invention mounted in an exchanger
Fig. 4 is a partial cross section of an exchanger tube established in accordance with an advantageous arrangement of the invention.

La fig. 5 est une coupe montrant schématiquement un échangeur établi avec des tubes échangeurs conformes à l'invention. Fig. 5 is a section schematically showing an exchanger established with exchanger tubes according to the invention.

La fig. 6 est une coupe selon VI-VI fig. 5. Fig. 6 is a section on VI-VI fig. 5.

Sur les fig. 1 et 2, on a montré un tube échangeur conforme à l'invention. In fig. 1 and 2, an exchanger tube according to the invention has been shown.

Ce tube échangeur est constitué par trois cylindres concentriques la, lb, 1 , les fluides entre lesquels
c doivent s'opérer les échanges thermiques circulant respectivement dans les deux espaces annulaires interne 2a et externe 2b. This exchanger tube consists of three concentric cylinders 1a, 1b, 1, the fluids between which
c must take place the heat exchanges circulating respectively in the two internal annular spaces 2a and external 2b.

Ces deux espaces annulaires interne 2 et externe
a 2b comportent des nervures radiales 3 reliant entre eux les cylindres, c'est-à-dire que les nervures radiales 3 de l'espace annulaire interne 2 relient le cylindre
a intérieur la au cylindre intermédiaire lb, et que les nervures radiales 3 de l'espace annulaire externe 2b relient le cylindre intermédiaire lb au cylindre extérieur lc. These two internal annular spaces 2 and external
a 2b have radial ribs 3 connecting the cylinders to each other, that is to say that the radial ribs 3 of the internal annular space 2 connect the cylinder
inside the intermediate cylinder lb, and that the radial ribs 3 of the external annular space 2b connect the intermediate cylinder lb to the external cylinder lc.

Les échanges de chaleur, par conduction à travers la paroi du cylindre intermédiaire lb, se trouvent donc augmentés par les échanges de chaleur par conduction à travers les nervures 3. The heat exchanges, by conduction through the wall of the intermediate cylinder 1b, are therefore increased by the heat exchanges by conduction through the ribs 3.

Comme montré sur la fig. 4, la forme des nervures 3 est telle que leur épaisseur est maximum au voisinage de la paroi du cylindre intermédiaire lb (à travers lequel s'opèrent les échanges thermiques) et va en diminuant vers le cylindre intérieur las pour les nervures 3 de l'espace annulaire interne 2a, et vers le cylindre extérieur lc, pour les nervures 3 de l'espace annulaire externe 2b.  As shown in fig. 4, the shape of the ribs 3 is such that their thickness is maximum in the vicinity of the wall of the intermediate cylinder 1b (through which the heat exchanges take place) and decreases towards the inner cylinder weary for the ribs 3 of the internal annular space 2a, and towards the external cylinder lc, for the ribs 3 of the external annular space 2b.

Grâce à cette disposition, un gain de masse peut être obtenu, à efficacité d'échange thermique égale.  Thanks to this arrangement, a mass gain can be obtained, with equal heat exchange efficiency.

Comme montré sur la i-ig. 2, l'espace annulaire interne 2 s'étend, à ses deux extrémités, au-delà
a de l'espace annulaire externe 2b, pour-délimiter deux espaces d'extrémité 4 et 5 par lesquels s'opèrent respectivement l'entrée et la sortie du fluide traversant ledit espace annulaire externe 2b
Ces espaces d'extrémité 4 et 5 sont également délimités par des flasques d'extrémité 6, 7 et 8,9 lors du montage des tubes échangeurs dans un échangeur (fig.As shown on i-ig. 2, the internal annular space 2 extends, at its two ends, beyond
has external annular space 2b, to delimit two end spaces 4 and 5 by which the inlet and the outlet of the fluid passing through said external annular space 2b operate respectively
These end spaces 4 and 5 are also delimited by end flanges 6, 7 and 8, 9 during the mounting of the exchanger tubes in an exchanger (fig.

3 et 5)
La disposition des tubes échangeurs dans l'échangeur est avantageusement une disposition concentrique suivant une ou plusieurs circonférences (fig. 6). Dans ce dernier cas, les flasques 6, 7 et 8,9 délimitent des espaces 4 et 5 à section évolutive pour assurer une alimentation uniforme de tous les tubes échangeurs.3 and 5)
The arrangement of the exchanger tubes in the exchanger is advantageously a concentric arrangement along one or more circumferences (fig. 6). In the latter case, the flanges 6, 7 and 8, 9 delimit spaces 4 and 5 of progressive section to ensure a uniform supply of all the exchanger tubes.

Les tubes échangeurs conformes à l'Invention peuvent être réalisés en des matériaux conducteurs de la chaleur puisque les échanges thermiques font appel à la conduction. The exchanger tubes according to the invention can be made of heat-conducting materials since the heat exchanges use conduction.

En particulier, si la température est inférieure à 3000C, on peut réaliser les tubes échangeurs en alliage de magnésium, d'aluminium, ou de cuivre. In particular, if the temperature is lower than 3000C, it is possible to produce the exchanger tubes in an alloy of magnesium, aluminum, or copper.

Si la température est inférieure à 8000C, on peut réaliser les tubes échangeurs en alliage de fer. If the temperature is below 8000C, the iron alloy exchanger tubes can be made.

Si la température est inférieure à 1.5000C, on peut réaliser les tubes échangeurs en carbure ou ennitrure de silicium ; il est à noter, du fait de sa faible masse volumique (environ 3), que le carbure de silicium est particulièrement avantageux d'autant plus qu'il présente un très bon coefficient de conductivité thermique. If the temperature is lower than 1.5000C, it is possible to make the carbide or silicon nitride exchanger tubes; it should be noted, because of its low density (about 3), that silicon carbide is particularly advantageous especially since it has a very good coefficient of thermal conductivity.

Les échangeurs constitués avec des tubes échangeurs conformes à l'invention rencontrent une application particulièrement avantageuse dans la récupération des calories à haute température, et ce grâce à la possibilité de réaliser les tubes échangeurs en carbure de silicium ou en nitrure de silicium. The exchangers formed with exchanger tubes in accordance with the invention meet a particularly advantageous application in the recovery of calories at high temperature, and this thanks to the possibility of producing the exchanger tubes in silicon carbide or in silicon nitride.

Constructivement, ces deux matériaux permettent de réaliser des épaisseurs très faibles (de l'ordre de 0,2mm) pour les nervures et les parois cylindriques, ce qui conduit à la réalisation d'échangeurs légers. Constructively, these two materials make it possible to achieve very small thicknesses (of the order of 0.2 mm) for the ribs and the cylindrical walls, which leads to the production of light exchangers.

De tels échangeurs peuvent donc être montés dans des installations à turbines à gaz, en particulier aéronautiques, pour réchauffer l'air issu du compresseur avant son admission dans les chambres de combustion.  Such exchangers can therefore be mounted in gas turbine installations, in particular in aeronautics, to heat the air coming from the compressor before it is admitted into the combustion chambers.

Claims (8)

REVENDICATIONS 1.- Tube échangeur de chaleur, caractérisé par le fait qu'il est constitué par au moins trois cylindres concentriques (1at lb, 1 ) et par le fait que les 1.- Heat exchanger tube, characterized by the fact that it consists of at least three concentric cylinders (1at lb, 1) and by the fact that the c espaces annulaires (2a, 2b) dans lesquels circulent respectivement les fluides entre lesquels doivent s'opérer les échanges thermiques comportent une pluralité de nervures radiales (3) reliant entre eux les susdits cylindres (la, lb, 1c), ce grâce à quoi les échanges de chaleur par conduction à travers la paroi du ou des cylindres intermédiaires (lb) sont augmentés des échanges de chaleur par conduction à travers les nervures (3). c annular spaces (2a, 2b) in which the fluids circulate respectively between which the heat exchanges must take place comprise a plurality of radial ribs (3) connecting the above-mentioned cylinders (la, lb, 1c) to each other, whereby heat exchanges by conduction through the wall of the intermediate cylinder or cylinders (lb) are increased by heat exchanges by conduction through the ribs (3). 2.- Tube échangeur de chaleur selon la revendication 1, caractérisé par le fait que la forme des nervures radiales (3) est telle que leur épaisseur est maximum au voisinage de la paroi du ou des cylindres intermédiaires (lb) à travers lesquels s'operent les échanges thermiques, et va en diminuant vers les cylindres adjacents (la' lc).  2.- heat exchanger tube according to claim 1, characterized in that the shape of the radial ribs (3) is such that their thickness is maximum in the vicinity of the wall of the intermediate cylinder or cylinders (lb) through which s operate the heat exchanges, and decreases towards the adjacent cylinders (la 'lc). 3.- Tube échangeur de chaleur selon la revendication 1 ou 2, comportant trois cylindres concentriques (la, lb, lc), caractérisé par le fait que l'espace annulaire interne (2 ) s'étend, à ses deux extrémités, au-delà 3.- heat exchanger tube according to claim 1 or 2, comprising three concentric cylinders (la, lb, lc), characterized in that the internal annular space (2) extends, at its two ends, au- of the a de l'espace annulaire externe (2b), pour délimiter deux espaces d'extrémité (4 et 5) par lesquels s'opèrent respectivement l'entrée et la sortie du fluide traversant ledit espace annulaire externe has external annular space (2b), to delimit two end spaces (4 and 5) by which the entry and exit of the fluid passing through said external annular space operate respectively 4.- Tube échangeur de chaleur selon l'une quelconque des revendications 1 à 3 destiné à fonctionner à une température inférieure à 3000 C, caractérisé par le fait qu'il est réalisé en alliage de magnésium, d'aluminium ou de cuivre. 4.- Heat exchanger tube according to any one of claims 1 to 3 intended to operate at a temperature below 3000 C, characterized in that it is made of an alloy of magnesium, aluminum or copper. 5.- Tube échangeur de chaleur selon l'une quelconque des revendications 1 à 3 destiné à fonctionner à une tempé- rature inférieure à 8000C, caractérisé par le fait qu'il est réalisé en alliage de fer.  5. A heat exchanger tube according to any one of claims 1 to 3 intended to operate at a temperature below 8000C, characterized in that it is made of an iron alloy. 6.- Tube échangeur de chaleur selon l'une quelconque des revendications 1 à 3 destiné à fonctionner à une température inférieure à 1.5000C, caractérisé par le fait qu'il est réalisé en carbure ou en nitrure de silicium. 6.- Heat exchanger tube according to any one of claims 1 to 3 intended to operate at a temperature below 1.5000C, characterized in that it is made of carbide or silicon nitride. 7.- Echangeur de chaleur, caractérisé par le fait qu'il comporte une pluralité de tubes échangeurs selon l'une quelconque des revendications 1 à 6. 7. Heat exchanger, characterized in that it comprises a plurality of exchanger tubes according to any one of claims 1 to 6. 8.- Echangeur de chaleur selon la revendication 7, caractérisé par le fait que les tubes échangeurs sont disposés suivant une ou plusieurs circonférences.  8. A heat exchanger according to claim 7, characterized in that the exchanger tubes are arranged along one or more circumferences.
FR8315017A 1983-09-21 1983-09-21 IMPROVEMENTS TO HEAT EXCHANGER TUBES AND TO EXCHANGERS MADE WITH SUCH TUBES Expired FR2552216B1 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
FR8315017A FR2552216B1 (en) 1983-09-21 1983-09-21 IMPROVEMENTS TO HEAT EXCHANGER TUBES AND TO EXCHANGERS MADE WITH SUCH TUBES
JP19562884A JPS60169086A (en) 1983-09-21 1984-09-18 Heat exchanger tube, heat exchanger constituted from said tube and gas turbine device with said heat exchanger
EP84401885A EP0138677A3 (en) 1983-09-21 1984-09-21 Heat-exchanger tubes, heat-exchangers provided therewith and gas-turbine plants comprising such a heat-exchanger

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR8315017A FR2552216B1 (en) 1983-09-21 1983-09-21 IMPROVEMENTS TO HEAT EXCHANGER TUBES AND TO EXCHANGERS MADE WITH SUCH TUBES

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Publication Number Publication Date
FR2552216A1 true FR2552216A1 (en) 1985-03-22
FR2552216B1 FR2552216B1 (en) 1988-08-12

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FR (1) FR2552216B1 (en)

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US6390185B1 (en) * 2001-03-06 2002-05-21 Richard A. Proeschel Annular flow concentric tube recuperator
US20100263847A1 (en) * 2009-04-21 2010-10-21 Hamilton Sundstrand Corporation Microchannel heat exchanger
FR2995674A1 (en) * 2012-09-18 2014-03-21 Dcns Heat exchanger for e.g. steam generation, in nuclear industry, has tubular elementary heat exchange structure including multitude of associated micro-channels, where micro-channels are circularly distributed in tubular elementary structure
EP3775746A4 (en) * 2018-04-02 2021-12-22 FlexEnergy Energy Systems, Inc. Tube-fin heat exchanger

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JP2675973B2 (en) * 1994-03-14 1997-11-12 八木アンテナ株式会社 Indoor antenna
US20140083666A1 (en) * 2012-09-27 2014-03-27 Tai-Her Yang Tri-Piece Thermal Energy Body Heat Exchanger Having Multi-Layer Pipeline and Transferring Heat to Exterior Through Outer Periphery of Pipeline

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US3887004A (en) * 1972-06-19 1975-06-03 Hayden Trans Cooler Inc Heat exchange apparatus
FR2351372A1 (en) * 1976-05-15 1977-12-09 Vaillant Sa Instantaneous gas water heater - has copper water tube inside finned aluminium outer tube welded inside heat exchange chamber
FR2494420A3 (en) * 1980-11-20 1982-05-21 Camping Freeze Sa Heat exchanger assembly for absorption refrigerator - has profiled trunk with inner and outer radial ribs supporting inner and outer tubes

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FR1358061A (en) * 1963-05-25 1964-04-10 Escher Wyss Sa heat exchanger, in particular tube exchanger
FR1409932A (en) * 1964-07-24 1965-09-03 Snecma Improvements to heat exchange elements
FR1479862A (en) * 1966-05-12 1967-05-05 Gen Electric Further training in temperature exchangers
US3887004A (en) * 1972-06-19 1975-06-03 Hayden Trans Cooler Inc Heat exchange apparatus
FR2351372A1 (en) * 1976-05-15 1977-12-09 Vaillant Sa Instantaneous gas water heater - has copper water tube inside finned aluminium outer tube welded inside heat exchange chamber
FR2494420A3 (en) * 1980-11-20 1982-05-21 Camping Freeze Sa Heat exchanger assembly for absorption refrigerator - has profiled trunk with inner and outer radial ribs supporting inner and outer tubes

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6390185B1 (en) * 2001-03-06 2002-05-21 Richard A. Proeschel Annular flow concentric tube recuperator
WO2002075231A1 (en) * 2001-03-06 2002-09-26 Proeschel Richard A Annular flow concentric tube recuperator
US20100263847A1 (en) * 2009-04-21 2010-10-21 Hamilton Sundstrand Corporation Microchannel heat exchanger
FR2995674A1 (en) * 2012-09-18 2014-03-21 Dcns Heat exchanger for e.g. steam generation, in nuclear industry, has tubular elementary heat exchange structure including multitude of associated micro-channels, where micro-channels are circularly distributed in tubular elementary structure
EP3775746A4 (en) * 2018-04-02 2021-12-22 FlexEnergy Energy Systems, Inc. Tube-fin heat exchanger

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FR2552216B1 (en) 1988-08-12
JPS60169086A (en) 1985-09-02

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