DE556739C - Heat exchanging wall - Google Patents
Heat exchanging wallInfo
- Publication number
- DE556739C DE556739C DET37382D DET0037382D DE556739C DE 556739 C DE556739 C DE 556739C DE T37382 D DET37382 D DE T37382D DE T0037382 D DET0037382 D DE T0037382D DE 556739 C DE556739 C DE 556739C
- Authority
- DE
- Germany
- Prior art keywords
- wall
- heat exchanging
- heat
- exchanging wall
- boundary layer
- 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.)
- Expired
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
- F28F13/14—Arrangements for modifying heat-transfer, e.g. increasing, decreasing by endowing the walls of conduits with zones of different degrees of conduction of heat
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Building Environments (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Description
Die Erfindung befaßt sich mit der Regelung des Wärmeflusses in wärmeaustauschenden Wänden, z. B. in einer Trennwand zwischen fließenden Mitteln. Außer dem bei Wärmeübergangsflächen gewollten Wärmefluß zwischen Wand und Mittel und durch die Wand hindurch, treten noch andere Wärmeströme innerhalb des Baustoffes der Wand auf, die eine andere Richtung haben als der gewollte Wärmefluß und daher als Querströme bezeichnet werden können. Es ist zwar schon vorgeschlagen worden, die Querströme in Wandungen durch isolierende Zwischenlagen zu unterbinden. Diese nicht nützlichen Ouerströme, die einen Ausgleich der Temperaturdifferenz zwischen den Wandstellen am Eintritt und am Austritt des Mittels hervorrufen und dadurch den gewollten Wärmefluß schwächen, sollen durch die in der Zeichnung dargestellte Anordnung aber nicht nur geschwächt werden, sondern gleichzeitig soll darüber hinaus die Grenzschicht des strömenden Mittels derart beeinflußt werden, daß der Wärmeübergang dadurch gefördert wird.The invention is concerned with the regulation of the heat flow in heat exchangers Walls, e.g. B. in a partition between flowing media. Except for the heat flow that is wanted in the case of heat transfer surfaces between the wall and the center and through the wall, there are still other streams of heat within the building material of the wall, which have a different direction than the desired heat flow and therefore as cross currents can be designated. Although it has already been suggested, the cross currents to be prevented in walls by insulating intermediate layers. These not useful overcurrents that compensate the temperature difference between the wall points at the inlet and the outlet of the agent cause and thereby weaken the desired heat flow, but should by the arrangement shown in the drawing Not only should the boundary layer be weakened, but at the same time the boundary layer of the flowing medium are influenced in such a way that the heat transfer is promoted thereby will.
Zwecks Erreichung dieses Zieles wird die wärmeaustauschende Wand in mehrere Schichten unterteilt, zwischen denen isolierende Zwischenlagen oder die Wärmeleitfähigkeit der Wand in Richtung der Querströme c erheblich mindernde Teile eingefügt werden, durch die die Wand ein gitterartiges Aussehen bekommt.In order to achieve this goal, the heat-exchanging wall is divided into several layers, between which insulating intermediate layers or the thermal conductivity of the wall in the direction of the cross-currents c are inserted, which give the wall a lattice-like appearance.
In der Zeichnung sind zwei Ausführungsbeispiele derartiger Wärmeaustauschwände veranschaulicht. Die einzelnen Schichten derjenigen Teile der Trennwand, die den gewollten Wärmefluß vermitteln, sind in Abb. 1 und 2 mit α bezeichnet. Diese z. B. aus Metall oder sonstigem Baustoff (Schamotte) bestehenden beliebig hohen Schichten werden durch Teile b voneinander getrennt, welche die Wärmeleitfähigkeit in Richtung der Querströme c erheblich mindern und gleichzeitig durch Hervorbringung einer gitterartigen Gestalt der Wand die Grenzschicht des in Richtung d vorbeiströmenden Mittels derartig beeinflussen, daß eine Kontaktunterbrechung zwischen Mittel und Wand, also eine zeitweise Beseitigung der stagnierenden Adhäsion und damit eine Aufwirbelung der Grenzschicht eintritt.Two exemplary embodiments of such heat exchange walls are illustrated in the drawing. The individual layers of those parts of the partition that convey the desired heat flow are denoted by α in Figs. 1 and 2. This z. B. of metal or other building material (chamotte) existing layers of any height are separated from each other by parts b , which considerably reduce the thermal conductivity in the direction of the cross-currents c and at the same time influence the boundary layer of the medium flowing past in the direction d by producing a grid-like shape of the wall that an interruption of contact between the center and the wall, i.e. a temporary elimination of the stagnant adhesion and thus a whirling up of the boundary layer occurs.
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DET37382D DE556739C (en) | Heat exchanging wall |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DET37382D DE556739C (en) | Heat exchanging wall |
Publications (1)
Publication Number | Publication Date |
---|---|
DE556739C true DE556739C (en) | 1932-08-13 |
Family
ID=7559930
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DET37382D Expired DE556739C (en) | Heat exchanging wall |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE556739C (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0279302A1 (en) * | 1987-02-18 | 1988-08-24 | Deutsches Zentrum für Luft- und Raumfahrt e.V. | Layered heat storer |
WO2001057461A1 (en) * | 2000-02-04 | 2001-08-09 | Reinders, Johannes, Antonius, Maria | Heat exchanger and foil laminate therefor |
WO2004040225A1 (en) * | 2002-10-31 | 2004-05-13 | Forest Air B.V. | Heat-exchanging wall for a heat exchanger, and heat exchanger provided with such a wall |
-
0
- DE DET37382D patent/DE556739C/en not_active Expired
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0279302A1 (en) * | 1987-02-18 | 1988-08-24 | Deutsches Zentrum für Luft- und Raumfahrt e.V. | Layered heat storer |
WO2001057461A1 (en) * | 2000-02-04 | 2001-08-09 | Reinders, Johannes, Antonius, Maria | Heat exchanger and foil laminate therefor |
WO2004040225A1 (en) * | 2002-10-31 | 2004-05-13 | Forest Air B.V. | Heat-exchanging wall for a heat exchanger, and heat exchanger provided with such a wall |
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