NL1026984C2 - Structural construction. - Google Patents

Description

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Structural construction

The present invention relates to an architectural construction comprising a space, a shielding between that space and the environment and a sun protection arranged adjacent to that space, which sun protection comprises a solar heat-absorbing material and solar heat-emitting material, wherein a further light-transmitting shield is present, installed between that awning and that space.

An architectural construction is known from US 4,739,748. Therein a facade is described in which behind the window, i.e. in the space to be shielded, there is a sun protection in which a heat-buffering material is included. This material is preferably a PCM. Therefore, when a certain temperature is exceeded, heat can be absorbed and heat will be released when the temperature drops again. Because the aim of this construction is to release heat into the space, it is necessary that the sun protection in which the PCM is present is also within that space. As a result, the effect of the sun protection will be limited because, after all, the radiation in the room is retained when functioning as a sun protection and not outside the room. As a result, it is true that an optimum release of heat in the relevant space is possible, but the sun-resistant properties are limited.

The object of the present invention is to provide heat control of a building in a more efficient manner, whereby both heat absorption and heat emission can be optimized.

This object is achieved in the above-described architectural construction in that said shielding is common to a number of separate spaces arranged one above the other and that heat-absorbing / emitting material is a phase-change material.

The present invention proposes an architectural construction with an inner and outer skin. As such, such structures are well known in the art. It is known that this results in a considerable improvement of the climate and that the users of the different rooms have the option of opening a window even at higher buildings without this leading to unacceptable draft or other problems.

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The climate conditions that prevail in the space between the inner skin and outer skin are different from the conditions that prevail in the relevant space. According to the invention it is now proposed to apply the heat buffering capacity in the space between the inner skin and the outer skin. Moreover, this heat buffering functions as sun protection.

Here, on the one hand, the effect is obtained that it is prevented that solar radiation, in the active state of the sun protection, radiates through the inner skin into the relevant space. As a result, an effective blockage of energy in that space is prevented, so that it is not or hardly necessary to provide additional cooling capacity.

Because the buffer is arranged in a space between the inner skin and the outer skin, a completely different pattern of absorption and release of heat resists. After all, the temperature requirements for the space between the inner and outer skin are less high than the requirements for the room. That is, the temperature between the inner and outer skin may vary over a wider range than the temperature in the space. This makes it possible to choose other more efficient materials for functioning as a buffer. An example of this is materials with phase change in a certain temperature range. Because the temperature variations can be greater in the space between the inner and outer skin than in the working / living space, such materials with phase transition can be used more efficiently. In particular, such materials include those that have a solid / liquid transition at about 12-18 ° C. More in particular, materials are used for this which become liquid at about 15 ° C and solidify again at 18 ° C. Such materials are generally known in the art.

The invention also relates to a method for controlling the temperature in an architectural construction, which structural construction comprises a number of superimposed individual spaces placed one above the other, wherein each space is provided with a window and the windows of the space a first 30 form a façade, as well as a second façade made of light-transmitting material that is common to those spaces and spaced apart from the first façade, the temperature in that architectural construction being controlled by controlling the temperature between said first and second façade, controlling includes receiving or releasing heat in said space, wherein receiving or releasing heat comprises a solid-liquid phase transformation of a PCM, wherein during the night the temperature between said first and second facade is lowered to below the solidification point of that PCM due to ambient air in the room 5 introduce the first and second façades.

More in particular, the invention makes it possible to influence the temperature in the space between the first and second façade and thus the buffering capacity thereof. For example, it is possible (by forced ventilation), for example, to lower the temperature in the space between the first and second façade below the freezing point of the PCM, so that a buffer capacity is provided for the following day.

The invention will be explained in more detail below with reference to an exemplary embodiment shown in the drawing. Show:

FIG. 1 schematically a structural construction according to the present invention with effective sun protection; and

FIG. 2 shows the structure according to FIG. 1 during the night.

In Fig. 1, an architectural construction is indicated in its entirety by 1. The actual living spaces are indicated by 11 and 12 and separated by a storey floor 6. This floor is extended with a grid 15. The screen with the surrounding area consists of a so-called outer skin 2 and an inner skin 3. In this example, the inner skin 3 is made of double glass 4, 5 between which an insulating gas layer is arranged. The outer skin 2 is designed as a single layer, but it will be understood that numerous variations of inner and outer skin are possible. It is important that both the inner and outer skin are translucent. Possible windows and the like may be present in the inner skin 3. The area is indicated by 13.

A sunblind 7 is provided in the space 14 between the inner skin and outer skin. This consists of a number of tiltable slats 8. Each tiltable slat is provided with a cavity 9 in which a PCM is arranged. This material with phase change at about room temperature can be incorporated in cassettes according to any other way known in the prior art and is available as standard. Such a material has a considerable heat-buffering effect through the solid-liquid-solid phase transition. The space 14 is provided with ventilation means that enable heat exchange with the environment.

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In FIG. 1 shows the state in which the sunblind is closed when the sun shines. As a result, no heat is introduced into the spaces 11 and 12. The incoming heat is accumulated in PCM 10.

Figure 2 shows the situation during the night. The sunblind 7 is then opened because the slats 9 are placed in a horizontal position. In that state, cooling of the space 14 between inner skin 3 and outer skin 2 will occur. In the present example, when the temperature drops to about 15 °, the liquefied material will solidify, releasing a considerable amount of heat. This heat will circulate within space 14. This temperature drop can, for example, be achieved at night with the ventilation means by introducing colder ambient air into the room 14. This buffer effect prevents further lowering of the temperature in space 14 in most cases. This also prevents the temperature in the space 11 from falling considerably during the night. As a result, a considerable energy saving for cooling and / or heating can be obtained.

It will be understood that a particularly large surface area for material 10 is available through the application in a sun protection. The "thickness" of the slats moreover determines the volume material 10 that may be present.

The construction described above is particularly simple to realize and can be fitted or adjusted later. It is possible not to provide all slats with material, but only certain slats, in particular the lower slats. Moreover, it is possible to perforate the higher-lying slats so that even with the awning closed, some light always penetrates into the room 11,12.

Although the invention has been described above with reference to a preferred embodiment, it will be immediately understood by those skilled in the art that numerous changes can be made without going beyond the scope of the present invention. It is thus possible to use all kinds of special types of materials 10 to provide certain heating / cooling characteristics of the space 14. These further changes are within the scope of the appended claims.

1026984

Claims (7)

1. Architectural construction comprising a space, a screen between said room and the environment and a sunblind arranged adjacent to that room, which sunblind comprises a solar heat-absorbing material and solar heat-emitting material, wherein a further light-transmitting screen is present arranged between said sunblind and said space, characterized in that said shield (2) is common to a number of separate spaces (11, 12) arranged one above the other and that heat-absorbing / emitting material is a phase-change material. Architectural construction according to claim 1, wherein said (further) shielding comprises a double-walled substrate (3) with insulation. 3. Structural construction according to one of the preceding claims, wherein said sunblind comprises a number of adjacent tiltable slats (8), each slat comprising a heat-absorbing / releasing material (10). 4. Structural construction according to claim 3, wherein the slats (8) on the side facing the environment (13) are provided with photovoltaic cells (16). 5. Structural construction according to one of the preceding claims, wherein said phase-change material comprises a melt / solidification range. 25 The architectural construction of claim 5, wherein the melt-solidification temperature is approximately 12-20 ° C. 7. Method for controlling the temperature in an architectural construction, which architectural construction comprises a number of superimposed individual spaces (11, 12) superimposed, wherein each space is provided with a window and the windows of the space have a window form a first façade, as well as a second façade, placed at a distance from the first façade, of translucent material which is common to those spaces (11, 12), the temperature in that architectural construction being controlled by controlling the temperature between those first and second façade, wherein controlling comprises taking up or releasing heat in that space, characterized in that taking up or releasing heat comprises a solid-liquid phase transformation of a PCM, wherein the temperature between said first and second is during the night façade is lowered to below the freezing point of that PCM by ambient air in the space between those first to introduce a second façade. 10 1026984-