DE3148289A1 - Air/water heat exchanger, preferably for heat exchange at low temperatures, preferably for obtaining environmental heat for heat pumps - Google Patents
Air/water heat exchanger, preferably for heat exchange at low temperatures, preferably for obtaining environmental heat for heat pumpsInfo
- Publication number
- DE3148289A1 DE3148289A1 DE19813148289 DE3148289A DE3148289A1 DE 3148289 A1 DE3148289 A1 DE 3148289A1 DE 19813148289 DE19813148289 DE 19813148289 DE 3148289 A DE3148289 A DE 3148289A DE 3148289 A1 DE3148289 A1 DE 3148289A1
- Authority
- DE
- Germany
- Prior art keywords
- heat
- heat exchanger
- air
- low temperatures
- pumps
- 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.)
- Ceased
Links
- 230000007613 environmental effect Effects 0.000 title abstract description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title abstract description 3
- 239000000463 material Substances 0.000 claims abstract description 10
- 229920001038 ethylene copolymer Polymers 0.000 claims 1
- 230000015572 biosynthetic process Effects 0.000 abstract description 2
- 238000000859 sublimation Methods 0.000 abstract description 2
- 230000008022 sublimation Effects 0.000 abstract description 2
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 abstract 1
- 239000005977 Ethylene Substances 0.000 abstract 1
- 238000001816 cooling Methods 0.000 abstract 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 238000010257 thawing Methods 0.000 description 1
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
- F28F21/00—Constructions of heat-exchange apparatus characterised by the selection of particular materials
- F28F21/06—Constructions of heat-exchange apparatus characterised by the selection of particular materials of plastics material
-
- 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
- F28D9/04—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 spirally-wound plates or laminae
Landscapes
- 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)
Abstract
Description
Beschreibung und Erläuterung zur PatentanmeldungDescription and explanation of the patent application
"Luft-Wasser-Wärmetauscher, vorzugsweise zum Wärmetausch bei niedrigen Temperaturen, vorzugsweise zur Gewinnung von Umweltwärme für Wärmepumpen"."Air-water heat exchanger, preferably for heat exchange at low temperatures, preferably to generate environmental heat for heat pumps ".
Es ist bekannt, Wärmetauscher aus Materialien herzustellen, die einen guten Wärmeübergang haben. So werden vorzugsweise Wärmetauscher aus metallischen Werkstoffen hergestellt, insbesondere aus hochleitenden Werkstoffen, insbesondere aus Kupfer.It is known to produce heat exchangers from materials that have good heat transfer. Be like that preferably heat exchangers made of metallic materials, in particular of highly conductive materials, especially made of copper.
Im niedrigen Temperaturbereich wird beim Wärmetausch Abkühlung der Luft - der Taupunkt unterfahren, und eine Eisbildung ist die zwangsläufige Folge.In the low temperature range, the air is cooled down during heat exchange - falling below the dew point, and one Ice formation is the inevitable consequence.
Bei Wärmetauschern, die flächenförmig oder spiralförmig über- und/oder nebeneinander angeordnet sind, bildet somit die Vereisung eine Verschlechterung des Wärmeüberganges bis zur totalen Nichtfunktion, da die Tauscher zuwachsen, und das Eis die Wärme auch nicht mehr weiterleitet. ' -For heat exchangers that are flat or spiral are arranged above and / or next to one another, the icing thus forms a deterioration in the heat transfer to the point of total non-function, as the exchangers overgrow and the ice no longer transmits the heat. '-
ο · β··ο β
3U82893U8289
Die Erfahrung hat gezeigt, daß solche Wärmetauscher in der Regel nur oberhalb von 5°C eingesetzt werden können, wenn man die Vereisung vermeiden will.·Experience has shown that such heat exchangers are generally only used above 5 ° C if you want to avoid icing.
Bei eingetretener Vereisung ist ein hoher Wärmeaufwand bzgl. Abtauen und somit auch eine Betriebsunterbrechung die zwangsläufige Folge.If icing has occurred, there is a high expenditure of heat defrosting and thus also an interruption of operation is the inevitable consequence.
Um diese Vereisung zu vermeiden, ist es erf indungsgernäß zweckmäßig, den Werkstoff des Wärmetauschers so zu wählen, daß die Sublimationsleistung größer ist, bedingt durch die vorbeistreifende Luft, als die Vereisungsgeschwindigkeit auf dem Flächentauscherelement. In order to avoid this icing, it is according to the invention expedient to choose the material of the heat exchanger so that the sublimation performance is greater, conditionally by the passing air than the icing speed on the surface exchanger element.
Erfindungsgemäß wird daher weiter vorgeschlagen, flächenförmige oder spiralförmige Kunststoffwärmetauscherflächen zu benutzen, die als Material diese Eigenschaft aufweisen.According to the invention, it is therefore further proposed, planar or spiral-shaped plastic heat exchanger surfaces to use which have this property as a material.
Dieser positive Effekt tritt bei Materialien ein, die im K-Wert-Bereich zwischen 0,1 bis 0,2 kcal/m·liegen und Grad und Stunde aufweisen.This positive effect occurs with materials in the K value range between 0.1 and 0.2 kcal / m · and degree and hour.
Die Nichtvereisung tritt bei solchen Werkstoffen auf, wenn die Luftgeschwindigkeit im Bereich zwischen oberhalb von 2 m/sek. gewählt wird. Es ist daher erfindungsgemäß, die Vorrichtung zur Durchführung des Wärmetauschers so zu wählen, daß sieThe non-icing occurs with such materials, when the air speed is in the range between above from 2 m / sec. is chosen. It is therefore according to the invention to implement the device of the heat exchanger so that they
1. den obigen Material-K-Wert aufweist und1. has the above material K-value and
2. mit der obig beschriebenen Luftgeschwindigkeit angeströmt ist.2. with the air speed described above flowed against.
In der beiliegenden Zeichnung sind solche Vorrichtungen zur Durchführung des Verfahrens dargestellt mitIn the accompanying drawing, such devices for performing the method are shown with
1.) einem flächenartigen Wärmetauscher 2.) einem spiralförmigen Wärmetauscher.1.) a planar heat exchanger 2.) a spiral heat exchanger.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19813148289 DE3148289A1 (en) | 1981-12-05 | 1981-12-05 | Air/water heat exchanger, preferably for heat exchange at low temperatures, preferably for obtaining environmental heat for heat pumps |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19813148289 DE3148289A1 (en) | 1981-12-05 | 1981-12-05 | Air/water heat exchanger, preferably for heat exchange at low temperatures, preferably for obtaining environmental heat for heat pumps |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE3148289A1 true DE3148289A1 (en) | 1983-06-16 |
Family
ID=6148043
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE19813148289 Ceased DE3148289A1 (en) | 1981-12-05 | 1981-12-05 | Air/water heat exchanger, preferably for heat exchange at low temperatures, preferably for obtaining environmental heat for heat pumps |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE3148289A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1895259A1 (en) * | 2006-08-01 | 2008-03-05 | Makatec GmbH | Film heat transformer for fluids |
| AT505137B1 (en) * | 2007-04-16 | 2009-01-15 | Hinrichs Karl Heinz Dipl Ing | COMBINED AIR WATER HEAT EXCHANGER |
-
1981
- 1981-12-05 DE DE19813148289 patent/DE3148289A1/en not_active Ceased
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1895259A1 (en) * | 2006-08-01 | 2008-03-05 | Makatec GmbH | Film heat transformer for fluids |
| AT505137B1 (en) * | 2007-04-16 | 2009-01-15 | Hinrichs Karl Heinz Dipl Ing | COMBINED AIR WATER HEAT EXCHANGER |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| OP8 | Request for examination as to paragraph 44 patent law | ||
| 8131 | Rejection |