WO2007078240A1 - Système de système de canalisation - Google Patents

Système de système de canalisation Download PDF

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Publication number
WO2007078240A1
WO2007078240A1 PCT/SE2006/001511 SE2006001511W WO2007078240A1 WO 2007078240 A1 WO2007078240 A1 WO 2007078240A1 SE 2006001511 W SE2006001511 W SE 2006001511W WO 2007078240 A1 WO2007078240 A1 WO 2007078240A1
Authority
WO
WIPO (PCT)
Prior art keywords
channel
channel system
flow
channels
transition
Prior art date
Application number
PCT/SE2006/001511
Other languages
English (en)
Inventor
Sven Melker Nilsson
Original Assignee
Sven Melker Nilsson
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 Sven Melker Nilsson filed Critical Sven Melker Nilsson
Publication of WO2007078240A1 publication Critical patent/WO2007078240A1/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
    • F28D9/0025—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 zig-zag bend plates
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
    • F01N3/08—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
    • F01N3/10—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust
    • F01N3/24—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by constructional aspects of converting apparatus
    • F01N3/28—Construction of catalytic reactors
    • F01N3/2803—Construction of catalytic reactors characterised by structure, by material or by manufacturing of catalyst support
    • F01N3/2807—Metal other than sintered metal
    • F01N3/281—Metallic honeycomb monoliths made of stacked or rolled sheets, foils or plates
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
    • F01N3/08—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
    • F01N3/10—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust
    • F01N3/24—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by constructional aspects of converting apparatus
    • F01N3/28—Construction of catalytic reactors
    • F01N3/2803—Construction of catalytic reactors characterised by structure, by material or by manufacturing of catalyst support
    • F01N3/2807—Metal other than sintered metal
    • F01N3/281—Metallic honeycomb monoliths made of stacked or rolled sheets, foils or plates
    • F01N3/2821—Metallic honeycomb monoliths made of stacked or rolled sheets, foils or plates the support being provided with means to enhance the mixing process inside the converter, e.g. sheets, plates or foils with protrusions or projections to create turbulence
    • 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
    • F28F13/06—Arrangements for modifying heat-transfer, e.g. increasing, decreasing by affecting the pattern of flow of the heat-exchange media
    • F28F13/08—Arrangements for modifying heat-transfer, e.g. increasing, decreasing by affecting the pattern of flow of the heat-exchange media by varying the cross-section of the flow channels

Definitions

  • the present invention relates to a channel system to be used as heat exchanger or as catalyst carrier and to optimise the ratio of pressure drop to heat, moisture and mass transfer of gases flowing through the channel system, said channel system comprising channels with flow converters extending transversely to the channels, said flow converters comprising an upstream portion and a downstream portion, said upstream portion extending in the flow direction at an inclination from one side of the channel to the opposite side of the channel and said downstream portion extending in the flow direction from the transition between said upstream portion and said downstream portion at an increasing distance from said opposite side of the channel.
  • a channel system usually has a body which is formed with a large number of juxtaposed small channels through which flows a gas or gas mixture, which, for example, is to be converted, or alternatively the channel systems are made of different materials, such as ceramic materials, or metal, such as stainless steel or aluminium.
  • the channel cross-section of ceramic channel bodies usually is rectangular or polygonal, for example hexagonal.
  • the channel system is made by extrusion, which means that the cross-section of the channels will be the same along the entire length of the channel, and the channel walls will be smooth and even.
  • channel bodies of metal In the manufacture of channel bodies of metal, a corrugated strip and a flat strip are usually wound about a spool. This results in channel cross-sections which are triangular or trapezoidal.
  • Most channel systems of metal that are available on the market have channels of the same cross-section along their entire length and have, like ceramic channel bodies, smooth and even channel walls .
  • What is most important in the context is the heat, moisture and mass transfer between the gas or gas mixture flowing through the channels and the channel walls in the channel system.
  • the mass transfer coefficient which is a measure of the mass transfer rate should be great so as to obtain high efficiency of the heat exchange and/or the catalytic conversion.
  • the gas flows in relatively regular layers along the channels.
  • the flow thus is essentially laminar. Only along a short distance at the inlet of the channels, a certain flow occurs transversely to the channel walls.
  • the Reynold's number is used as gas flow characteristic, which in the contexts here involved is between 100 and 600. As long as the Reynold's number is less than approx. 2000, the flow remains laminar in smooth and even channels.
  • a boundary layer is formed in laminar gas flow next to the channel walls, where the velocity is essentially zero.
  • This boundary layer significantly reduces the mass transfer coefficient, above all in the case of what is referred as fully developed flow, in which the heat, moisture and mass transfer occurs mainly by diffusion, which is relatively slow.
  • the gas must be made to flow toward the surface of the channel side so that the boundary layers are reduced and the flow transfer from one layer to another is increased. This may take place by what is referred to as turbulent flow.
  • turbulent flow In smooth and even channels, the laminar flow turns turbulent when the Reynold's number reaches values above approx. 2000. If one wishes to reach Reynold' s number of this magnitude in the channels in the channel systems that are here involved, considerably higher gas velocities are required than is normal in these contexts.
  • EP 0 298 943 discloses a catalyst, which has flow converters in the form of transverse corrugations.
  • US 4,152,302 discloses a catalyst with channels, in which flow converters are arranged in the form of transverse metal flaps punched from the strip. Also combinations of these two types of flow converter occur.
  • EP 0 869 844 discloses a method of placing and designing flow converters in the channels so that an optimal ratio of pressure drop to heat, moisture and mass transfer is obtained.
  • the flow converters are placed in the "bottom” of the channel and are combined with a tongue-and-groove system in order to prevent telescoping. With these flow converters, a regular gas circulation is obtained, which primarily increases the heat, moisture and mass transfer toward the "bottom surface" of the channel.
  • the mutual arrangement of the flow converters is such that the turbulence can be maximally utilised relative to the pressure drop increase.
  • the object of the present invention is to provide a channel system, in which the ratio of pressure drop to heat, moisture and mass transfer is additionally improved.
  • the invention is based on the knowledge that the mass transfer rate and its relation to the pressure drop can be improved by the channel sides being used in a better and different way than described in EP 0 869 844.
  • the channel system comprises channels with flow converters extending transversely to the channels, said flow converter comprising an upstream portion and a downstream portion, said upstream portion extending in the flow direction at an inclination from one side of the channel to the opposite side of the channel and said downstream portion extending in the flow direction from the transition between said upstream portion and said downstream portion at an increasing distance from said opposite side of the channel, said channels having a height of less than 4 mm, wherein the transition between said upstream portion and said downstream portion is essentially direct.
  • transition between said upstream portion and said downstream portion is direct or essentially direct is to be interpreted to mean that the transition can have a radius (or alternatively curvature) or a very small plateau, but where this radius or the length of the plateau in the flow direction is very small relative to the lengths of said upstream and downstream portions.
  • the transition should according to the present invention be so small or short that the gas flowing through the channel when using the channel system largely does not flow parallel to the longitudinal direction of the channels exactly adjacent said transition.
  • the present invention is especially advantageous for small dimensions of the channels, that is less than 4 mm in height (in a channel which is triangular in cross- section and equilateral, a side is less than 5 mm) .
  • the height of a channel is from 1 mm to 3.5 mm.
  • the flow is completely laminar and the heat/mass transfer occurs by diffusion. This is a slow process and the transfer rate is low. Large transfer surfaces and precious metal coatings (in catalysts) are required to achieve a sufficient efficiency.
  • the pressure drop is established by the friction between the gas and the walls.
  • the ratio of pressure drop to transfer rate is decisive of the practical application. With a channel system according to the present invention, the ratio of pressure drop to transfer rate can be reduced, on the one hand by reducing the pressure drop and, on the other, by increasing the transfer rate.
  • the ratio is reduced mostly by the heat/mass transfer rate being increased while at the same time the pressure drop is changed to a relatively small extent (both up and down) . It is known that the mass transfer rate in blowing at right angles toward a surface is about 5-10 times higher than in the case where the gas flows along the same surface. This known condition is used in the invention by providing the channel sides with control units which direct the gas flow at an angle to the channel sides. In order to simplify manufacture, said upstream portion of the flow converter can be flat.
  • said upstream portion of the flow converter has a curved shape, for example concave shape, seen in the flow direction of the channel, in order to minimise the pressure drop.
  • said downstream portion has adjacent the transition between said upstream and downstream portions an inclination relative to the longitudinal direction of the channel which is greater than the inclination of said upstream portion adjacent the transition.
  • the end part of said downstream portion has at a distance from the transition between said upstream and downstream portions a curved shape, for instance concave.
  • the angle between said upstream and downstream portions adjacent the transition is between 60° and 120°. Still more preferred, said angle is between 80° and 100°, and most preferably between 85° and 95°.
  • the channels preferably are triangular in cross-section. Also a trapezoidal cross-section is conceivable.
  • the flow converter is arranged in such a manner that the transition between said upstream and downstream portions is parallel to a side of the triangle of the triangular cross-section of the channel, from which side the flow converter extends.
  • the flow converter is arranged in such a manner that the transition between said upstream and downstream portions is parallel to a side of the triangle of the triangular cross-section of the channel opposite the flow converter.
  • the channel system comprises a corrugated strip, which is arranged with a flat strip on both sides of the corrugated strip, thus forming channels which are triangular or trapezoidal in cross-section.
  • the corrugated strip is, together with the flat strip, rolled up to form a cylinder.
  • the flow converters are arranged by means of a row of indentations/pressed- out portions extending transversely to the waves in the corrugated strip and corresponding indentations/pressed- out portions in the flat strip.
  • indentations are made from both sides of the corru- gated strip and the flat strip and at a distance from each other seen along the longitudinal direction of the channels formed.
  • the number of channels with flow converters according to the present invention is doubled and the heat/mass transfer rate is increased significantly.
  • the need for precious metals for catalysts configured according to the present invention is reduced, and thus also the total cost of a catalyst, which to a very large extent consists of the cost of the precious metal. It has been found possible in an experiment to increase
  • Sherwood's numbers (Sh, a measure of the heat/mass transfer rate) by up to 50% in a channel system with indentations from both sides, compared with a channel system with indentations from one side only.
  • Fig. 1 is a perspective view of a channel in a channel system according to the present invention.
  • Fig. 2a is a cross-section of the channel in Fig. 1.
  • Fig. 2b is a side view of the channel in Fig. 1.
  • Fig. 3 is a perspective view of a channel in a channel system according to an alternative embodiment of the present invention.
  • Fig. 4a is a cross-section of the channel in Fig. 3.
  • Fig. 4b is a side view of the channel in Fig. 3.
  • Fig. 5 is an exploded view in perspective of a portion of a channel system according to the present invention .
  • Fig. 6 is a cross-section of two superposed channels shown from the side.
  • Fig. 7 illustrates a layer with channels in the longitudinal direction of the channels.
  • Fig. 8 is an exploded view in perspective of a por- tion of a channel system according to the present invention.
  • one side of the channel 1 is provided with flow converters 2 so that the gas flow is directed toward the two other channel sides.
  • the geometric shape of the upstream side 3 of the flow converter 2 is adjusted so that an optimal ratio of heat, moisture and mass transfer rate and pressure drop is obtained. If the gas flow is directed at a very large angle or perpendicular to the channel sides, there is a great risk of a high pressure drop since the gas flow is forced to make an excessive and quick change of direction. If the gas flow is directed at a somewhat smaller angle toward the channel sides, as shown in Fig. 2a for instance, the mass transfer rate relative to blowing at right angles certainly decreases, but instead the pressure drop increase will not be of the same magnitude.
  • the downstream portion 4 of the flow converter 2 should also be designed to minimise the pressure drop. If the downstream portion 4 is too steep or if the transition 5 between the flow converter 2 and the channel is too sharp, undesired turbulence may be generated in this area, which may result in a very high pressure drop which takes away the effect of the increased heat, moisture and mass transfer rate.
  • the optimal arrangement of the flow converters 2 is determined by the blowing direction and velocity or velocity variation of the gas flow toward the channel side .
  • the flow converter 2 can be designed so that a certain degree of shedding of vortices is obtained, which increases the heat, moisture and mass transfer rate toward the sides . By blowing occurring at an angle to the channel side, the shedding of vortices will be more pronounced and more effective than if it should occur parallel to the extent of the channel.
  • Figs 3, 4a and 4b illustrate an alternative embodiment where the flow converters 2 are arranged in a manner which is slightly turned relative to the arrangement in the embodiments in Figs 1 and 2.
  • the gas flow is directed toward a channel side at an alternative angle so that the flow pattern is given a different character.
  • the flow converter 2 is configured so that a certain degree of shedding of vortices is obtained, which increases the heat, moisture and mass transfer rate toward the sides.
  • the shedding of vortices will be more pronounced and more effective since the approaching occurs at an angle to the channel side and not parallel to the channel side.
  • the gas flow leaves the upstream side 3 it will here too expand toward the opposite side of the side that is being approached. Consequently, the gas flow will be directed slightly obliquely toward the channel side and an increase of the heat, moisture and mass transfer rate is obtained.
  • Fig. 5 is an exploded view in perspective of a portion of a channel system according to the present invention.
  • a corrugated strip 6 is preferably used, in which flow converters 2 are pressed from one side so as to form both indentations 7 at the fold edges next to the pressing tool and pressed-out portions 8 at the inner fold edges.
  • a substantially flat strip 9 is used, which is also formed with indentations corresponding to those in the corrugated strip 6.
  • a flat strip 9 and a corrugated strip 6 are pressed one on top of the other so that the indentations in the flat strip 9 fit into the indentations in the corrugated strip 6.
  • Fig. 6 shows how the flow may appear in a channel according to the channel system in Fig. 5.
  • the channels 10 with a tip of the cross-sectional triangle pointing downward in Fig. 7 and the channels 11 with a tip of the cross-sectional triangle pointing upward are provided with indentations/pressed-out portions so that all channels are provided with flow converters.
  • the channel system shown in Fig. 5 only half of the channels are provided with flow converters according to the present invention.
  • indentations/pressed-out portions be made from both sides so that the base of the triangle, that is the cross- section of the channel, is pressed inward, thereby achieving a reduction of the cross-sectional area.
  • An example of such a channel system is shown in Fig. 8.
  • the indentations/pressed-out portions of the channels with the tip of the triangular cross-section pointing upward and downward, respectively, are offset relative to each other along the channels, and preferably equidistantly spaced from each other.
  • indentations of the base of the triangle/- pressed-out portion of the tip of the triangle there are thus indentations of the base of the triangle/- pressed-out portion of the tip of the triangle and indentations of the tip of the triangle/pressed-out portion of the base of the triangle. It is mainly a reduction of the cross-sectional area that helps to generate turbulence. This means that the portions where the base is pressed inward toward the centre of the channel generate most of the turbulence since this is where the cross-sectional area is reduced.
  • the corrugated strip Adjacent the portions where the tip of the triangle is pressed inward toward the centre of the channel and the base is pressed outward, there occurs an increase of the cross-sectional area instead.
  • the corrugated strip can be corrugated in other ways so that other channel profiles are obtained. If the configu ⁇ ration of the flow converters does not constitute an obstacle to telescoping, for example if the angles of the upstream and downstream portions are small relative to the longitudinal direction of the channel, it is possible to make a special indentation/pressed-out portion with slightly less acute angles relative to the longitudinal direction of the channels.
  • These telescoping obstacles should then be small, that is small relative to the cross-section of the channels, compared with the flow converters in order to minimise the pressure drop.
  • These telescoping obstacles may, of course, also supplement flow converters which already serve as telescoping obstacles .

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • Combustion & Propulsion (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
  • Pipeline Systems (AREA)
  • Duct Arrangements (AREA)

Abstract

Système de système de canalisation permettant d’optimiser le rapport entre la chute de pression et la chaleur, l’humidité et le transfert de masse de gaz s’écoulant à travers le système de système de canalisation, comprenant des canaux (1) avec convertisseurs d’écoulement (2) s’étendant transversalement aux canaux. Le convertisseur d’écoulement (2) comprend une partie amont (3) et une partie aval (4), ladite partie amont (3) s’étendant dans le sens d’écoulement selon une inclinaison d’un côté du canal (1) vers le côté opposé du canal (1), et ladite partie aval (4) s’étendant dans le sens d’écoulement à partir de la transition (5) entre ladite partie amont (3) et ladite partie aval (4) à une distance croissante par rapport audit côté opposé du canal (1). La hauteur des canaux (1) est inférieure à 4 mm. La transition (5) entre ladite partie amont (3) et ladite partie aval (4) est sensiblement directe.
PCT/SE2006/001511 2006-01-02 2006-12-29 Système de système de canalisation WO2007078240A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE0600003A SE0600003L (sv) 2006-01-02 2006-01-02 Kanalsystem
SE0600003-8 2006-01-02

Publications (1)

Publication Number Publication Date
WO2007078240A1 true WO2007078240A1 (fr) 2007-07-12

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PCT/SE2006/001511 WO2007078240A1 (fr) 2006-01-02 2006-12-29 Système de système de canalisation

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SE (1) SE0600003L (fr)
WO (1) WO2007078240A1 (fr)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009128750A1 (fr) * 2008-04-18 2009-10-22 Sven Melker Nilsson Système de canal
WO2010016792A1 (fr) * 2008-08-06 2010-02-11 Sven Melker Nilsson Système de canal
CN102980424A (zh) * 2008-04-18 2013-03-20 S·M·尼尔松 通道系统
JP2014059139A (ja) * 2013-10-23 2014-04-03 Melker Nilsson Sven チャネルシステム
WO2016059597A1 (fr) * 2014-10-15 2016-04-21 Commissariat A L'energie Atomique Et Aux Energies Alternatives Échangeur thermique
US11340025B2 (en) 2017-12-04 2022-05-24 SWISS ROTORS Spolka z o.o. Heat transmission roll for a rotary cylindrical heat exchanger

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB828992A (en) * 1957-04-02 1960-02-24 Lysholm Alf Improvements in heat exchangers
US4314587A (en) * 1979-09-10 1982-02-09 Combustion Engineering, Inc. Rib design for boiler tubes
EP0298943A2 (fr) * 1987-07-06 1989-01-11 Svenska Emissionsteknik Ab Support de catalyseur
US6446710B2 (en) * 1999-12-28 2002-09-10 Alstom (Switzerland) Ltd Arrangement for cooling a flow-passage wall surrrounding a flow passage, having at least one rib element
US20030086837A1 (en) * 2000-05-30 2003-05-08 Rolf Bruck Particle trap and assemblies and exhaust tracts having the particle trap

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB828992A (en) * 1957-04-02 1960-02-24 Lysholm Alf Improvements in heat exchangers
US4314587A (en) * 1979-09-10 1982-02-09 Combustion Engineering, Inc. Rib design for boiler tubes
EP0298943A2 (fr) * 1987-07-06 1989-01-11 Svenska Emissionsteknik Ab Support de catalyseur
US6446710B2 (en) * 1999-12-28 2002-09-10 Alstom (Switzerland) Ltd Arrangement for cooling a flow-passage wall surrrounding a flow passage, having at least one rib element
US20030086837A1 (en) * 2000-05-30 2003-05-08 Rolf Bruck Particle trap and assemblies and exhaust tracts having the particle trap

Cited By (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101579141B1 (ko) 2008-04-18 2015-12-21 스벤 멜커 닐손 채널 시스템
CN102007364B (zh) * 2008-04-18 2013-01-09 S·M·尼尔松 通道系统
CN102980424A (zh) * 2008-04-18 2013-03-20 S·M·尼尔松 通道系统
US9441523B2 (en) 2008-04-18 2016-09-13 Sven Melker Nilsson Channel system with internal flow director and turbulence generator
WO2009128750A1 (fr) * 2008-04-18 2009-10-22 Sven Melker Nilsson Système de canal
KR20140069367A (ko) * 2008-04-18 2014-06-09 스벤 멜커 닐손 채널 시스템
JP2011518302A (ja) * 2008-04-18 2011-06-23 ニルソン、スベン・メルカー チャネルシステム
EP2321610A1 (fr) * 2008-08-06 2011-05-18 Sven Melker Nilsson Système de canal
WO2010016792A1 (fr) * 2008-08-06 2010-02-11 Sven Melker Nilsson Système de canal
US20120279693A2 (en) * 2008-08-06 2012-11-08 Sven Nilsson Channel system
JP2011530687A (ja) * 2008-08-06 2011-12-22 ニルソン、スベン・メルカー チャンネルシステム
CN102119315A (zh) * 2008-08-06 2011-07-06 S·M·尼尔松 通道系统
US9410462B2 (en) 2008-08-06 2016-08-09 Sven Melker Nilsson Channel system
EP2321610A4 (fr) * 2008-08-06 2013-04-17 Sven Melker Nilsson Système de canal
JP2014059139A (ja) * 2013-10-23 2014-04-03 Melker Nilsson Sven チャネルシステム
WO2016059597A1 (fr) * 2014-10-15 2016-04-21 Commissariat A L'energie Atomique Et Aux Energies Alternatives Échangeur thermique
FR3027382A1 (fr) * 2014-10-15 2016-04-22 Commissariat Energie Atomique Echangeur thermique
US11340025B2 (en) 2017-12-04 2022-05-24 SWISS ROTORS Spolka z o.o. Heat transmission roll for a rotary cylindrical heat exchanger

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