EP2594883A2 - Échangeur de chaleur - Google Patents

Échangeur de chaleur Download PDF

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Publication number
EP2594883A2
EP2594883A2 EP12192159.7A EP12192159A EP2594883A2 EP 2594883 A2 EP2594883 A2 EP 2594883A2 EP 12192159 A EP12192159 A EP 12192159A EP 2594883 A2 EP2594883 A2 EP 2594883A2
Authority
EP
European Patent Office
Prior art keywords
heat exchanger
tubes
tube
inlet
offset
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Withdrawn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
EP12192159.7A
Other languages
German (de)
English (en)
Other versions
EP2594883A3 (fr
Inventor
Jong-Rae Cho
Sang-Hu Park
Man Yeong Ha
Ho Sueng Jeong
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.)
Rolls Royce PLC
Original Assignee
Rolls Royce PLC
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 Rolls Royce PLC filed Critical Rolls Royce PLC
Publication of EP2594883A2 publication Critical patent/EP2594883A2/fr
Publication of EP2594883A3 publication Critical patent/EP2594883A3/fr
Withdrawn legal-status Critical Current

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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
    • 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
    • F28D1/04—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 tubular conduits
    • F28D1/047—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 tubular conduits the conduits being bent, e.g. in a serpentine or zig-zag
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
    • F28F9/02—Header boxes; End plates
    • 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
    • F28D7/005—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 for only one medium being tubes having bent portions or being assembled from bent tubes or being tubes having a toroidal configuration
    • 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
    • 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
    • F28D1/04—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 tubular conduits
    • F28D1/047—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 tubular conduits the conduits being bent, e.g. in a serpentine or zig-zag
    • F28D1/0475—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 tubular conduits the conduits being bent, e.g. in a serpentine or zig-zag the conduits having a single U-bend
    • 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
    • F28D1/04—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 tubular conduits
    • F28D1/053—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 tubular conduits the conduits being straight
    • F28D1/05316—Assemblies of conduits connected to common headers, e.g. core type radiators
    • F28D1/05333—Assemblies of conduits connected to common headers, e.g. core type radiators with multiple rows of conduits or with multi-channel 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
    • F28F2265/00—Safety or protection arrangements; Arrangements for preventing malfunction
    • F28F2265/26—Safety or protection arrangements; Arrangements for preventing malfunction for allowing differential expansion between elements

Definitions

  • the present invention relates to a heat exchanger, and particularly but not exclusively to a heat exchanger having a tube matrix which reduces thermal stress experienced by the heat exchanger.
  • Heat exchangers are widely used to transfer heat from a relatively hot fluid to a relatively cold fluid without direct contact between the fluids.
  • a conventional tube heat exchanger is shown in Figures 1 and 2 .
  • the heat exchanger 2 comprises an inlet manifold 4 and an outlet manifold 6.
  • the inlet and outlet manifolds 4, 6 are fluidically coupled by a plurality of tubes 8 which together form a tube matrix 10.
  • the tubes 8 of the tube matrix 10 are coupled at one end to the inlet manifold 4 and are coupled at the other end to the outlet manifold 6.
  • the tubes 8 of the tube matrix 10 are arranged such that their longitudinal axes are perpendicular to the longitudinal axes of the inlet and outlet manifolds 4, 6.
  • a plurality of the tubes 8 are aligned in a plane of the longitudinal axes of the inlet and outlet manifolds 4, 6 to form a row, and several rows are disposed side-by-side to form columns of the tube matrix 10.
  • each tube 8 of the tube matrix 10 is straight. Each tube 8 therefore follows a direct path from the inlet manifold 4 to the outlet manifold 6 without deviating from a longitudinal axis between its connection point with the inlet manifold 4 and its connection point with the outlet manifold 6.
  • the inlet and outlet manifolds 4, 6 and tube matrix 10 form a conduit for the passage of a first fluid through the heat exchanger 2. Accordingly, the first fluid flows into the heat exchanger 2 via the inlet manifold 4, passes through the tubes 8 of the tube matrix 10 and exits the heat exchanger 2 via the outlet manifold 6.
  • a second fluid flows over exterior surfaces of the tubes 8 of the tube matrix 10.
  • the first and second fluids have different temperatures and therefore heat is transferred between the first and second fluids.
  • Figure 3 shows a simulated stress distribution for the heat exchanger 2 under large thermal and pressure loads.
  • the ends of the inlet and outlet manifolds 4, 6 are assumed to have a fixed position.
  • the heat exchanger 2 experiences large stresses throughout as a result of thermal expansion of the inlet and outlet manifolds 4, 6 and the tubes 8 of the tube matrix 10. Increased loads are seen across those tubes 8 which are located towards the ends of the inlet and outlet manifolds 4, 6 due to the fixed position of the inlet and outlet manifolds 4, 6 at these locations.
  • Figures 4 and 5 show a heat exchanger 102 which has a tube matrix 110 which is formed of two portions 110a, 110b comprising U-shaped tubes 108.
  • Each U-shaped portion 110a, 110b is connected at one end to the inlet manifold 104 and at the other end to the outlet manifold 106.
  • the U-shaped portions 110a, 110b extend in opposite directions from the inlet and outlet manifolds 104, 106 to form an oval.
  • Figure 6 shows a simulated stress distribution for the U-shaped heat exchanger 102 under large thermal and pressure loads. As can be seen, the stress levels are far reduced for the tube matrix 102, since the U-shaped tubes 108 are not constrained by the inlet and outlet manifolds 104, 106. Accordingly, the U-shaped heat exchanger 102 is insensitive to the displacement constraints.
  • the U-shaped heat exchanger 102 requires more space and is heavier than the straight tube matrix 2.
  • FIGS 7 and 8 show another example of a known heat exchanger 202.
  • the heat exchanger 202 has an S-shaped tube matrix 210, with the tubes 208 of the tube matrix 210 following a serpentine path between the inlet manifold 204 and the outlet manifold 206.
  • the tubes 208 of the S-shaped tube matrix 210 comprise first and second straight portions 212a, 212b adjacent the inlet and outlet manifolds 204, 206 respectively, and first and second curved portions 214a, 214b disposed between the first and second straight portions 212a, 212b.
  • the first and second curved portions 214a, 214b deviate in opposite directions from the axis of the first and second straight portions 212a, 212b in a plane defined by the longitudinal axes of the inlet and outlet manifolds 204, 206 to form the S-shape.
  • the S-shaped nature of the tube matrix 210 acts to reduce the thermal stress placed on the heat exchanger 202, without considerably increasing the size and weight of the heat exchanger.
  • the gap between adjacent tubes 208 is reduced over the first and second curved portions 214a, 214b of the S-shaped tube matrix 210. Consequently, the tubes 208 must be spaced further from one another at the inlet and outlet manifolds 204, 206 in order to prevent the tubes 208 from contacting one another.
  • the curved portions 214a, 214b increase the complexity of the manufacturing process, thus increasing the cost of the heat exchanger.
  • a heat exchanger comprising: an inlet manifold; an outlet manifold; and a tube matrix comprising a plurality of tubes, each tube being fixedly connected at one end to the inlet manifold and at the other end to the outlet manifold; wherein each tube extends generally along a longitudinal axis defined between the connection of the tube with the inlet manifold and the connection of the tube with the outlet manifold; and wherein a single portion of each tube is offset to one side of the longitudinal axis.
  • the tubes may be fixedly connected between the inlet manifold and outlet manifold independently from each other.
  • the tubes may each be separated from an adjacent tube by a substantially similar gap at corresponding portions along the longitudinal axis.
  • the tubes may be generally C-shaped.
  • the offset portion may comprise a curved portion which curves away from the longitudinal axis.
  • the curved portion may have a constant curvature.
  • the offset portion may comprise a straight portion and pair of angled portions which offset the straight portion from the longitudinal axis.
  • the offset portion may be offset in a plane defined by a longitudinal axis of the inlet and outlet manifolds.
  • the tubes may be arranged in one or more rows in a plane defined by a longitudinal axis of the inlet and outlet manifolds.
  • a plurality of rows may be disposed side-by-side to form columns.
  • a minimum gap between adjacent tubes over the offset portion may be greater than 2/3 of the maximum gap between adjacent tubes at the inlet and outlet manifolds.
  • the offset portion may be 30-70% of the total length of the tube.
  • the offset portion may allow deformation of the tubes during thermal expansion, thereby reducing thermal stress experienced by the heat exchanger. Furthermore, the offset portion does not considerably affect the gaps between adjacent tubes. Consequently, the size of the heat exchanger is not significantly increased, if at all. This may make the heat exchanger of the present invention particularly suitable for installation in an aero-engine, where space is at a premium.
  • the manufacturing process for the single offset portion is simple and requires only one bending process. Accordingly, the manufacturing costs are minimised.
  • the present invention results in a high efficiency, high temperature, high pressure, lightweight and compact heat exchanger design.
  • a heat exchanger comprising an inlet manifold, an outlet manifold, and a tube array comprising a plurality of tubes, wherein the tube array generally extends along a longitudinal axis between the inlet manifold and the outlet manifold, and wherein the tube array comprises an offset portion that is offset from the longitudinal axis.
  • Each tube may comprise an offset portion that is offset to the same side.
  • the tube array may comprise at least one longitudinally extending portion and an offset portion.
  • the tube array may comprise first and second longitudinally extending portions coupled to the inlet and outlet manifolds respectively, with the offset portion disposed between the first and second longitudinally extending portions.
  • the single offset portion may be directly between the first and second longitudinally extending portions.
  • the offset portion may be generally C-shaped.
  • FIG 10 shows a heat exchanger 302 according to an embodiment of the invention.
  • the heat exchanger 302 comprises an inlet manifold 304 and an outlet manifold 306.
  • the inlet and outlet manifolds 304, 306 are fluidically coupled by a plurality of tubes 308 which together form a tube matrix 310.
  • the tubes 308 of the tube matrix 310 are fixedly connected, for example, by welding, at one end to the inlet manifold 304 and are coupled at the other end to the outlet manifold 306.
  • a plurality of the tubes 308 are aligned in a plane defined by the longitudinal axes of the inlet and outlet manifolds 304, 306 to form a row, and several rows are disposed side-by-side to form columns of the tube matrix 310 arranged along a common plane.
  • Each tube 308 comprises first and second straight portions 312a, 312b adjacent the inlet and outlet manifolds 304, 306 respectively, and a single curved portion 314 disposed between the first and second straight portions 312a, 312b.
  • the curved portion 314 deviates from a longitudinal axis of the tube 308 between its connection point with the inlet manifold 304 and its connection point with the outlet manifold 306. As shown in Figure 10 , the curved portion 314 is offset in the plane defined by the longitudinal axes of the inlet and outlet manifolds 304, 306. The size of the offset from this longitudinal axis is defined as the offset length.
  • the curved portion 314 follows a single curvature between the first straight portion 312a and the second straight portion 312b. Accordingly, the tube matrix 310 is generally C-shaped. Further, each of the tubes is separated from adjacent tubes by a similar gap at corresponding portions along the length of the tubes and are held between the manifolds independently of each other in the present embodiment, although supporting members may be incorporated between each of the tubes to help maintain a common gap therebetween.
  • the inlet and outlet manifolds 304, 306 and tube matrix 310 form a conduit for the passage of a first fluid through the heat exchanger 302. Accordingly, the first fluid flows into the heat exchanger 302 via the inlet manifold 304, passes through the tubes 308 of the tube matrix 310 and exits the heat exchanger 302 via the outlet manifold 306.
  • the curved portion 314 absorbs thermal expansion by elastically deforming. Thus, the curved portion 314 reduces the thermal stress experienced by the heat exchanger 302.
  • the geometry of the tube matrix 310 is optimised in order to minimise the thermal stress experienced by the heat exchanger 302. Accordingly, a design of experiment (DOE) analysis was performed using the Central Composite Design method and sensitivity analysis and response surface analysis was performed using the results of the DOE analysis.
  • DOE design of experiment
  • the response surface analysis was performed in order to find the optimum values for the offset length, the straight length and the curvature of the curved portion 314 which minimise the thermal stress, whilst maintaining a minimum gap between adjacent tubes over the curved portion 314 of 2/3 the maximum gap at the inlet and outlet manifolds 304, 306.
  • the dimensions of the heat exchanger are preferably as follows:
  • Figure 12 shows a simulated stress distribution for the heat exchanger 302 under large thermal and pressure loads. As shown, the heat exchanger 302 experiences larger stresses at its centre over the portion 314 as a result of thermal expansion and deformation of the tubes 308. However, as shown in Figure 13 , the stress experienced at the centre and at the ends of the heat exchanger 302 is far lower than for the straight tube heat exchanger 2, and comparable to the U-shaped heat exchanger 102.
  • FIG 14 shows a heat exchanger 402 according to another embodiment of the invention.
  • the heat exchanger 402 comprises an inlet manifold 404 and an outlet manifold 406.
  • the inlet and outlet manifolds 404, 406 are fluidically coupled by a plurality of tubes 408 which together form a tube matrix 410.
  • the tubes 408 of the tube matrix 410 are coupled at one end to the inlet manifold 404 and are coupled at the other end to the outlet manifold 406.
  • a plurality of the tubes 408 are aligned in a plane of the longitudinal axes of the inlet and outlet manifolds 404, 406 to form a row, and several rows are disposed side-by-side to form columns of the tube matrix 410.
  • Each tube 408 comprises first and second straight portions 412a, 412b adjacent the inlet and outlet manifolds 404, 406 respectively, and a single offset portion 416 disposed between the first and second straight portions 412a, 412b.
  • the offset portion 414 deviates from a longitudinal axis of the tube 408 between its connection point with the inlet manifold 404 and its connection point with the outlet manifold 406.
  • the curved portion 414 is offset in a plane of a longitudinal axis of the inlet and outlet manifolds 404, 406. The size of the offset from this longitudinal axis is defined as the offset length.
  • the offset portion 416 comprises a third straight portion 418 which is connected to the first and second straight portions 412a, 412b by first and second angled portions 420a, 420b.
  • the tubes 408 are curved at the intersections between the first/second straight portions 412a, 412b and the first/second angled portions 420a, 420b, and between the first and second angled portions 420a, 420b and the third straight portion 418.
  • the third straight portion 418 is arranged such that it is offset from, but parallel with, the first and second straight portions 412a, 412b. Accordingly, the tube matrix 410 is generally C-shaped.
  • the offset portion 416 absorbs thermal expansion by elastically deforming. Thus, the offset portion 416 reduces the thermal stress experienced by the heat exchanger 402.
  • the first and second straight portions and the offset portion may be integrally formed or may be separate components which are subsequently joined together to form the tube 308,408.
  • the tubes need not have a circular cross-section and could have any other cross-section, so long as they provide a conduit for the passage of a fluid from the inlet manifold to the outlet manifold.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
EP12192159.7A 2011-11-21 2012-11-12 Échangeur de chaleur Withdrawn EP2594883A3 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GBGB1120008.6A GB201120008D0 (en) 2011-11-21 2011-11-21 Heat exchanger

Publications (2)

Publication Number Publication Date
EP2594883A2 true EP2594883A2 (fr) 2013-05-22
EP2594883A3 EP2594883A3 (fr) 2014-06-11

Family

ID=45475434

Family Applications (1)

Application Number Title Priority Date Filing Date
EP12192159.7A Withdrawn EP2594883A3 (fr) 2011-11-21 2012-11-12 Échangeur de chaleur

Country Status (3)

Country Link
US (1) US20130126141A1 (fr)
EP (1) EP2594883A3 (fr)
GB (1) GB201120008D0 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103307813B (zh) * 2013-07-05 2016-08-17 丹佛斯微通道换热器（嘉兴）有限公司 换热器及其成形方法
US10092985B2 (en) 2015-05-06 2018-10-09 Hanon Systems Heat exchanger with mechanically offset tubes and method of manufacturing
US9816767B2 (en) 2016-01-12 2017-11-14 Hamilton Sundstrand Corporation Tubes and manifolds for heat exchangers
EP4306786A3 (fr) * 2022-07-15 2024-04-03 RTX Corporation Échangeur de chaleur pour aéronef

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4809774A (en) * 1985-12-12 1989-03-07 Mtu Motoren-Und Turbinen- Union Munchen Gmbh Reversal chamber for a tube matrix of a heat exchanger
WO1991010107A1 (fr) * 1990-01-05 1991-07-11 Burmeister & Wain Energi A/S Refroidisseur de gaz pour le transfert de chaleur par convexion
JPH0842806A (ja) * 1994-07-29 1996-02-16 Kawasaki Heavy Ind Ltd 高温・高圧ガス用廃熱ボイラ
US20040069470A1 (en) * 2002-09-10 2004-04-15 Jacob Gorbulsky Bent-tube heat exchanger
EP2131131A1 (fr) * 2008-06-06 2009-12-09 Scambia Industrial Developments AG Échangeur de chaleur

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4809774A (en) * 1985-12-12 1989-03-07 Mtu Motoren-Und Turbinen- Union Munchen Gmbh Reversal chamber for a tube matrix of a heat exchanger
WO1991010107A1 (fr) * 1990-01-05 1991-07-11 Burmeister & Wain Energi A/S Refroidisseur de gaz pour le transfert de chaleur par convexion
JPH0842806A (ja) * 1994-07-29 1996-02-16 Kawasaki Heavy Ind Ltd 高温・高圧ガス用廃熱ボイラ
US20040069470A1 (en) * 2002-09-10 2004-04-15 Jacob Gorbulsky Bent-tube heat exchanger
EP2131131A1 (fr) * 2008-06-06 2009-12-09 Scambia Industrial Developments AG Échangeur de chaleur

Also Published As

Publication number Publication date
EP2594883A3 (fr) 2014-06-11
US20130126141A1 (en) 2013-05-23
GB201120008D0 (en) 2012-01-04

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