EP3242090A1

EP3242090A1 - Radiant panel element

Info

Publication number: EP3242090A1
Application number: EP16168084.8A
Authority: EP
Inventors: Panu Mustakallio; Pauli Viinanen; Janne Summanen
Original assignee: Halton Oy
Current assignee: Halton Oy
Priority date: 2016-05-03
Filing date: 2016-05-03
Publication date: 2017-11-08

Abstract

The invention provides a radiant panel element (1) comprising a first panel (2) and a tubing (4), which comprises at least one circuit (4a), and wherein heat transfer medium flow. The tubing (4) is fastened to the first panel (2) with heat conducting adhesive (7). The radiant panel element (1) comprises also a second panel (3), which is arranged parallel to the first panel (2) so that the tubing (4) is arranged between the first and the second panel (2, 3). The tubing (4) is fastened also to the second panel (3) with heat conducting adhesive (7).

Description

FIELD OF THE INVENTION

The present invention relates to a radiant panel element for heating or cooling rooms.

BACKGROUND OF THE INVENTION

In prior art radiant panel elements are used for heating and cooling rooms. They are assembled for example to the ceiling. The radial panel elements comprise a radiant panel which is arranged as a bottom panel in the element so that it radiates towards the room. The radial panel elements comprise also tubing in which the heat transfer medium is flown. The tubing is usually made of round pipe and it is fastened to the radiant panel with grooves or clips. Because the upper part of these radiant panel elements is open, they collect dust and dirt and are hard to keep clean. Also they waste heat energy to the building structures.

OBJECTIVE OF THE INVENTION

The objective of the invention is to alleviate the disadvantages mentioned above.
In particular, it is an objective of the present invention to provide a radiant panel element, which is more energy efficient and also easier to maintain.

SUMMARY OF THE INVENTION

According to an aspect, the present invention provides a radiant panel element comprising a first panel and a tubing, which comprises at least one circuit, and wherein heat transfer medium flow. The tubing is fastened to the first panel with heat conducting adhesive. The radiant panel element comprises also a second panel, which is arranged parallel to the first panel so that the tubing is arranged between the first and the second panel. The tubing is fastened also to the second panel with heat conducting adhesive.
The advantage of the invention is that the heat transfer more efficiently not only to the first panel but also to the second panel from the heat transfer medium. Specially, when the radiant panel element is assembled hanging from the ceiling, the heat radiates from both of the first and the second panels to the room. By adding a second panel, the interior of the radiant panel element stays cleaner and is, therefore, easier to maintain.
In an embodiment of the invention, the profile of the tubing is flat.
In an embodiment of the invention, the profile of the tubing is flat so that its width is greater than height.
In an embodiment of the invention, the tubing comprises a second circuit, wherein second heat transfer medium flow.
In an embodiment of the invention, the second circuit is arranged on top of the first circuit.
In an embodiment of the invention, the second circuit is fastened to the first circuit, the first panel is fastened to the first circuit, and the second panel is fastened to the second circuit with heat conducting adhesive.
In an embodiment of the invention, the first and second circuits are arranged to run in pairs in the same plane between the first and second panels.
In an embodiment of the invention, the radiant panel element comprises heat conducting plates between the tubing, which are fastened to the first and second panels with heat conducting adhesive.
In an embodiment of the invention, the heat conducting plates are folded towards the first panel from the middle so that the ends of the plates are fastened to the second panel and the folded middle part is fastened to the first panel.
In an embodiment of the invention, the second panel comprises insulation layer outside of the radial panel element.
In an embodiment of the invention, the heat conductive adhesive comprises aluminum powder.
In an embodiment of the invention, the heat conductive adhesive comprises aluminum powder at least 20 %.
In an embodiment of the invention, the system for heating or cooling a room comprises a radiant panel element according to any of the previous embodiments, which is assembled either to the ceiling or hanging from the ceiling.
It is to be understood that the aspects and embodiments of the invention described above may be used in any combination with each other. Several of the aspects and embodiments may be combined together to form a further embodiment of the invention.

BRIEF DESCRIPTION OF THE DRAWINGS

The accompanying drawings, which are included to provide a further understanding of the invention and constitute a part of this specification, illustrate embodiments of the invention and together with the description help to explain the principles of the invention. In the drawings:

Fig. 1 shows an axonometric view of a radiant panel element. The second panel is cut open to show the tubing inside the radiant panel element.
Fig. 2 is a cross section of the radiant panel element, and
Fig. 3 is a cross section of the radiant panel element comprising a tubing with two circuits, which are arranged on top of each other.
Fig. 4 is a cross section of the radiant panel element comprising a tubing with two circuits, which are arranged in the same plane and they run in pairs.
Fig. 5 is a cross section of the radiant panel element comprising a tubing with two circuits, which are arranged in the same plane, and there are heat transfer plates between the tubing.

DETAILED DESCRIPTION OF THE INVENTION

Figure 1 shows an axonometric view of a radiant panel element 1 comprising a first panel 2 as a bottom of the radiant panel element 1 and a second panel 3 as a roof of the radiant panel element 1. In fig. 1, the second panel 2 is cut open to show the interiors of the radiant panel element 1, but in use it is a closed structure. The first panel 2 and the second panel 3 are arranged parallel to each other and a tubing 4 is arranged between them. The tubing 4 comprises at least one circuit 4a, in which a heat transfer medium is flown. Each circuit 4a, 4b... comprises an inlet 5 and an outlet 6 for the heat transfer medium. The tubing 4 is arranged to wind end to end of the radiant panel element 1 to cover the whole area of the first panel 2. The second panel 3 can comprise an insulation layer 9 (see FIG. 2) outside of the radiant panel element 1. The insulation layer 9 prevents the heat transferring upwards from the radiant panel element 1. This is may be preferable when the radiant panel element 1 is assembled to the ceiling.
Figure 2 shows a cross section of the radiant panel element 1 comprising a first panel 2, a second panel 3 and a tubing 4. The tubing 4 comprises one circuit 4a and it has a flat profile. The tubing 4 is fastened to the first panel 2 and to the second panel 3 with heat conducting adhesive 7. The flat profile of the tubing allows the structure of the radiant panel element 1 to be thinner and lighter, and therefore easier to assemble. Also the heat transfer is more efficient. The profile of the tubing may, however, be other than flat i.e. rectangular or round. The radiant panel element 1 in FIG. 2 comprises also an insulation layer 9 fastened to the second panel 3 outside of the radiant panel element 1. The heat conducting adhesive 7 may comprise aluminum powder to improve the heat transferring. One suitable solution is to use aluminum powder at least 20%, but it is also suitable to use heat conducting adhesive 7 comprising aluminum powder at least 50%. Figure 3 shows a cross section of the radiant panel element 1 comprising a tubing 4 with two circuits 4a and 4b. The circuits 4a and 4b are arranged on top of each other and they are fastened to each other with heat conducting adhesive 7. The first circuit 4a is fastened to the first panel 2 and the second circuit 4b is fastened to the second panel 3 with heat conducting adhesive 7. Each circuit 4a, 4b... has an inlet 5 and an outlet 6 for the heat transfer medium. Therefore, it is possible to use heating medium in other circuit and cooling medium in other circuit. The profile of the tubing is preferably flat but it may be other also in this embodiment.
Figure 4 shows a cross section of the radiant panel element 1 comprising a tubing 4 with two circuits 4a and 4b. The circuits 4a and 4b are arranged to run in the same plane in pairs. Both circuits 4a and 4b are fastened to the first panel 2 and to the second panel 3 with the heat conducting adhesive 7. The profile of the tubing is preferably flat but it may be other also in this embodiment.
Figure 5 shows heat conducting plates 8 between the tubing 4. In fig. 5 the tubing 4 comprises two circuits 4a and 4b arranged to run in the same plane in pairs. However, the tubing 4 can also comprise only one circuit or more circuits. The heat conducting plates 8 are arranged to transfer heat from the second panel 3 to the first panel 2. The heat conducting plates 8 are folded towards the first panel 2 from the middle so that the ends 10 and 11 of the heat conducting plates 8 are fastened to the second panel 3 and the middle part 12 to the first panel 2.
The radiant panel element 1 is used in systems for heating and/or cooling rooms. The radiant panel elements can be assembled to the ceiling or hanging from the ceiling.
Although the invention has been the described in conjunction with a certain type of radiant panel element, it should be understood that the invention is not limited to any certain type of radiant panel element. While the present inventions have been described in connection with a number of exemplary embodiments, and implementations, the present inventions are not so limited, but rather cover various modifications, and equivalent arrangements, which fall within the purview of prospective claims.

Claims

Radiant panel element (1) comprising a first panel (2); a tubing (4) arranged on the first panel (2), which tubing (4) comprises at least one circuit (4a), wherein heat transfer medium flows, and the tubing (4) is fastened to the first panel (2) with heat conducting adhesive (7) characterized in that the radiant panel element (1) comprises a second panel (3) arranged parallel to the first panel (2) so that the tubing (4) is arranged between the first and the second panels (2, 3), and the tubing (4) is fastened also to the second panel (3) with heat conducting adhesive (7).
Radiant panel element (1) according to claim 1 ch aracterized in that the profile of the tubing (4) is flat.
Radiant panel element (1) according to claim 1 or 2 characterized in that the profile of the tubing (4) is flat so that its width is greater than height.
Radiant panel element (1) according to any of claims 1-3 c h a r a c t e r i z e d in that the tubing (4) comprises a second circuit (4b), wherein second heat transfer medium flow.
Radiant panel element (1) according to claim 4 ch aracterized in that the second circuit (4b) is arranged on top of the first circuit (4a).
Radiant panel element (1) according to claim 5 ch aracterized in that the second circuit (4b) is fastened to the first circuit (4a), the first panel (2) is fastened to the first circuit (4a), and the second panel (3) is fastened to the second circuit (4b) with heat conducting adhesive (7).
Radiant panel element (1) according to claim 4 ch aracterized in that the first and second circuits (4a, 4b) are arranged to run in pairs in the same plane between the first and second panels (2, 3).
Radiant panel element (1) according to any of claims 1-7 characterized in that the radiant panel element (1) comprises heat conducting plates (8) between the tubing (4), which are fastened to the first and second panels (2, 3) with heat conducting adhesive (7).
Radiant panel element (1) according to claim 8 ch aracterized in that the heat conducting plates (8) are folded towards the first panel (2) from the middle so that the ends (10, 11) of the heat conducting plates (8) are fastened to the second panel (3) and the folded middle part (12) is fastened to the first panel (2).
Radiant panel element (1) according to any of claims 1-9 characterized in that the second panel (3) comprises insulation layer (9) outside of the radial panel element (1).
Radiant panel element (1) according to any of claims 1-10 characterized in that the heat conductive adhesive (7) comprises aluminum powder.
Radiant panel element (1) according to claim 11 c haracterized in that the heat conductive adhesive (7) comprises aluminum powder at least 20 %.
A system for heating or cooling a room charac terized in that the system comprises a radiant panel element (1) according to any of claims 1-12, which is assembled either to the ceiling or hanging from the ceiling.