DE8019524U1 - VARIABLE HEAT ABSORBER WITH ADDITIONAL RADIATION EVALUATION - Google Patents

Description

Severin Westhauser
Elmar Westhauser

Variable heat absorber with additional radiation evaluation. Description:

A heat pump extracts, depending on the heat demand, a heat transfer fluid circuit a certain amount of heat that can be replaced by a heat absorber.

The smallest unit of the heat absorber consists of a heat transfer pipe in which a heat transfer fluid (l) passes through the environment, e.g. the temperature of calm air, wind, or rain is also heated by the sun's rays.

Known heat transfer pipes usually have a round cross-section and are often with additional surfaces to enlarge the surface tied together.

A highly thermally conductive metal tube with an elliptical cross-section and two additional fin-like tubes are used for this heat absorber Areas, a fin tube (2) shaped according to Fig. 1 with the following structural and thermal properties used:

- The fin tube (2) designed in this way is either made of two good heat-conducting, blackened heat-absorbing sheets as shown in Fig.l assembled or manufactured as a finished profile according to Fig.2. It has a multiple surface compared to a round tube and thereby allows:

on the one hand, intensive heat absorption from the surrounding calm air or wind and rain when there is no sunlight is available, on the other hand still a good radiation evaluation due to the large heat-absorbing surface of the fin tubes, if a global solar radiation is present.

-Due to the shape of the highly thermally conductive fin tube (2), the absorbed heat is directly or. by the shortest route transfer the heat transfer fluid (l).

-The fin tube (2) is stn each end with a End piece (3) provided that the connection of a flexible, round Connecting hose (6) is allowed (see Fig. 1,3 and 6).

-The attachment of the fin tubes (2) takes place via heat-insulating sliding pieces (k) on a. Retaining rail (5) (see Fig. 1 and 3)

-The fin tubes (2) are always mounted in such a way that their heat- absorbing surfaces have an incline of approx inclined plane (according to Fig.l) are arranged. -For larger units, parallel fin tube circles are arranged via distributors; the required absorber area can be adapted to the areas that can be reached by the sun's rays (see example in Fig. 6).

This variable heat absorber consisting of only a few parts requires relatively small dimensions and also generates heat transfer fluid temperatures when there is global solar radiation which are significantly above the ambient temperature.

Claims (5)

rv - YY Y · * · t. * »··" * »ft ■ Claims: 1. Variable heat absorber, characterized in that for the Flow of a heat transfer fluid (l) through a plug tube (2) is used with a cross-section which is several times the width of its height and which is provided by opposite, additional areas are added to create a large, contiguous area Heat-absorbing surface is created (see Fig. 1 and 2). ber 2. Variable heat absorber according to claim 1, characterized in that that for the flow of a heat transfer fluid (l) a Fin tube (2) is realized, which consists of two good heat-conducting, blackened and provided with slight curvatures heat absorber sheets is joined together to create a watertight cavity (see Fig. 1). 3 .. Variable heat absorber according to claim 1, characterized in that that for the flow of a heat transfer fluid (l) a Fin tube (2) is used, which consists of one unit as a finished profile (see Fig. 2). 4. Variable heat absorber according to claim 1, 2 and 3td characterized that the fin tube (2) at both ends / I because it is finished with an end piece (3) that connects a round connection or deflection hose (6) is permitted (see Figures 1.3 and 6). 5. Variable heat absorber according to claim 1, 2 and 3 »characterized in that the fastening of the fin tubes (2) via heat-insulating sliders (k) on a support rail (5) is done in such a way that the heat-absorbing surfaces have an inclination of 45 degrees.