JPS5960149A - Regenerative wall for building utilizing solar heat - Google Patents

Abstract

PURPOSE:To make it possible to effectively carry out invasion of heat into a regenerative wall so as to improve the heat collecting capacity of the regenerative wall by laminating fibrous or hairy coating materials having a high visible light reflection factor and a low heat conductivity, on the surface of the regenerative wall receiving solar radiation. CONSTITUTION:Solar radiation which has reaches the surface of the regenerative wall 3 through a light-transmissive plate (not shown) reflect in a multiplex manner within the coating material 5, and is transmitted to the regenerative wall 3. Thus, heat is accumulated and heat on the back surface (surface on the indoor side) is discharged by the radiation. On the surface receiving solar radiation from the back surface, the coating material 5 having a high visible light reflection factor such as a white fibrous coating material 5, for example, is applied in lamination. Therefore, when the solar beam radiates on the coating material 5, the solar rays successively reach up to innermost part of the fibrous body 6, and heat is applied efficiently by the regenerative wall 3. In addition, even when there is an air stream on the surface side the quantity of heat blowing backwardly through the fibrous body having a low heat conductivity, and hence heat loss from the surface become less.

Description

[Detailed Description of the Invention] [Technical Field of the Invention] The present invention relates to a transparent plate that transmits solar heat, and a heat storage wall disposed on the indoor side of the transparent plate with a space between the transparent plate and the transparent plate. The present invention relates to a heat storage wall for a building using solar heat, which forms part of the outer wall of a building, stores heat from the sun in the heat storage wall, and uses the stored heat to heat a room.

[Technical background of the invention and its problems] Recently, the use of solar heat has attracted attention from the perspective of energy saving. Various solar heat utilization devices have been proposed for use in bath water and the like.

However, such a device requires power to pump water into the heat storage tank, and there are problems in that it is not necessarily sufficient in terms of energy saving.

Therefore, a system has been proposed that does not require the above-mentioned power at all, stores solar heat in a seedling heating wall, and transmits the heat into the room by radiation and natural convection, thereby heating the entire room. That is, FIG. 1 is a full-length longitudinal section showing the outline of the above-mentioned solar heating building, and a part of its outer wall is covered with a transparent plate 1 such as glass that transmits solar heat. A space 2 is provided on the indoor side of the transparent plate 1, and a heat storage wall 3 such as a concrete wall is provided in parallel with the transparent plate 1.

When the sun shines during the day, the heat storage wall 3 is gradually warmed from the space 2 side by the solar heat that comes in through the transparent plate 1 and the space 2, and the entire wall becomes taller by dusk. On the other hand, although the outside temperature drops at night, since the sealed space 2 is formed between the heat storage wall 3 and the transparent plate 1,
This space serves as a heat insulating layer, preventing heat radiation to the outside, and transmitting the heat stored in the heat storage wall 3 into the room 4 by radiation. Further, the temperature of the air in contact with the heat storage wall 3 is increased by heat conduction and moves upward, causing natural convection, and the interior of the room is heated by this natural convection and internal radiation.

By the way, although the surface of the heat storage wall 3 is coated with thermochromic coating etc. to improve heat absorption, depending on the finishing condition of the surface, for example, natural convection etc. may occur on the surface of the heat storage wall 3 on the space 2 side. In the case where there is an air flow caused by the heat storage wall 3, there is a problem that the amount of heat that enters into the heat storage wall 3 decreases.

[Purpose of the invention]

In view of these points, it is an object of the present invention to effectively allow heat to penetrate into the heat storage wall and improve the heat collection effect of the heat storage wall.

[Summary of the invention]

The present invention constitutes a part of the outer wall of a building by a transparent plate that transmits solar heat and a heat storage wall that is arranged on the guiding side of the transparent plate with a space between the transparent plate and the transparent plate. In the heat storage wall for a building using solar heat, which stores the heat of It is characterized by a layer of conductive fibrous or hair-like skin material, which allows heat to easily penetrate from the surface when exposed to solar radiation, and prevents heat from escaping, thereby storing heat. This is to improve the effectiveness.

[Embodiments of the invention]

FIG. 2 is a cross-sectional side view of the heat storage wall of the present invention disposed on the indoor side of the transmitting plate, and the surface of the heat storage wall 3 on the side receiving solar radiation has a high visible light reflectance. , thermal conductivity is 0,
2 &n 17m h'c or less, fibrous b
(A layer of hair-like material 5 is deposited.)

However, the solar radiation that reaches the surface of the heat storage wall 30 through an overhang plate (not shown) is multiple-reflected inside the coating layer 5 and is transferred to the heat storage wall 3, where it is stored and transferred to the outside surface (indoor surface). )
Heat is dissipated by radiation.

By the way, if a black color with a low visible light repulsion rate is provided on the surface of the heat storage wall, solar radiation will be captured only by the surface layer of the fibrous covering material and will be transmitted to the inner part of the dark blue body of Mura 181. reached the point. Therefore, if there is an air flow on the surface of the fibrous material, heat can be easily removed from the surface layer.

However, in the present invention, the visible light reflectance is high on the surface of 41411 which receives solar radiation on the storage wall. When sunlight shines on the coating layer 5, as shown by the dotted line in FIG. Often added. Furthermore, even if there is an air flow on the surface side of the fibrous body 6, the amount of heat flowing back through the fiber A11J-like body having a low thermal conductivity is small, and the loss of heat from the surface is also reduced.

Generally, the radiation path 10 has a curved surface shape as shown in FIG.
So, the radiation transmission coefficient from the top surface to the bottom is the curved surface 11
When the surface reflectance ρ is 0, it is determined by τ=ρn. Therefore, it can be seen that the radiation transmittance of a white surface with a large reflectance ρ is higher than that of a black surface with a small reflectance ρ.

〔Effect of the invention〕

As explained above, in the present invention, a fibrous covering material with high reflectivity and low thermal conductivity is layered on the surface of the heat storage wall receiving solar radiation, so that the fibrous covering material with high reflectance and low thermal conductivity is captured by its ridge phase. The solar radiation #
In fact, the heat is transferred to the base of the frame material and the heat is effectively transferred to (1), ensuring a sufficient amount of heat storage.Moreover, since the temperature of the surface layer of the fibrous material is low, the heat caused by the red airflow is There is little loss, and since the casing material has low thermal conductivity, the amount of heat (2J) to the surface layer is also suppressed, preventing backflow of heat, and improving the heat collection outward curve of the heat storage wall. .

[Brief explanation of the drawing]

Figure 1 is a vertical partial side view of a conventional solar building.
The figure is a longitudinal sectional view of the heat storage wall of the present invention, and FIGS. 3 and 4 are diagrams illustrating the principle of the present invention. 1...Transmission plate, 2...Space, 3...Heat storage order, 5.
...Covering material. Applicant's agent Kiyoshi Inomata Figure 1 Figure 2 Figure 9 Figure 4

Claims (1)

[Claims] A part of the outer wall of the building is made up of a transparent plate that transmits solar heat and a heat storage wall that is placed on the indoor side of the transparent plate with a space between the transparent plate and the heat storage wall that absorbs all of the heat from the sun. A heat storage wall for a solar thermal building uses heat to store heat and use the stored heat to heat the room.The heat storage wall has a high visible light reflectance and low thermal conductivity on the side that receives sunlight. A heat storage wall for a building using solar heat, which is characterized by a layer of fibrous or hair-like covering material.