Passive wall cooling system for building facades in brick form, modeled after termites

Abstract

Passive wall cooling system for building facades in brick form based on the termite model, which can be installed in a masonry structure and has a tunnel system characterized in that the cold air tunnel (1) and the warm air chimney (2) open to the front and that both tunnels end in the air chamber (3) and are connected with the lateral connection (4).

Description

Bricks of conventional type have a rectangular shape. Perforated tiles also have holes to improve the insulating capacity. These usually run from top side to bottom side and are not open to any other side. The use of the gait system of termites has hitherto been carried out by buildings which are designed and built according to this preliminary picture. For this purpose, the ventilation systems are correspondingly set up.Thus, power consumption for actively cooling down the building can be reduced.For the construction of clinker facades and cereals, the stated bricks are used. This permits only insulation in the wall by the brick material and the enclosed air. This reduces the insulating capacity at prolonged warm temperatures. No air exchange with the outside air is possible, which can cool down the interior of the brick. With poor facade insulation, the use of refrigeration systems such as air conditioners is necessary to cool the temperature inside the building below the outdoor temperature. This results in a high power consumption. For passive cooling of buildings without high power consumption, the ventilation system is installed inside the building after the pre-picture of termite hills and the corridor systems present therein. For this purpose, the buildings must be re-established. Retrofitting is difficult. The insulation of the building cannot be improved by means of the ventilation system.The invention disclosed in claim 1 is based on the problem of providing passive cooling according to termite concept which can be installed as part of a facade made of bricks.This problem is solved by the features set out in claim 1.The invention achieves the effect that the brick can be installed according to the usual construction. The gear system generates an air exchange. The back, sides, top and bottom of the brick can be used regularly. Passive cooling can also be optimized by the curvature at the front side, since the curvature adapts the termite hill and reinforces the temperature differences.An exemplary embodiment is explained with reference to FIGS. 1 and 2. The following are shown: FIG. 1 shows a cross section of the brick with the passage systems of variant 1 FIG. 2 : a cross section of the brick with the passage systems of variant 2The cross section of the brick with cold air duct (1), warm air chimney (2), air chamber (3), lateral connection (4) and curvature (5) is shown in the figures. The cold air duct (1) extends curvedly from the lower part of the bulge (5) to the air chamber (3) in the rear part of the brick. The warm air chimney (2) rises from the air chamber (3) to the upper side of the bulge (5). The lateral connection (4) connects the cold air duct (1) and the hot air chimney (2) at the top of the first curve of the cold air duct (1) after the air chamber (3).When the outside is heated by incidence of light, the heated air inside flows away through the warm air chimney ( 2). From the cold air duct (1), cold air gradually flows into the air chamber (3). The lateral connection (4) prevents a back-up of warm air in the cold air duct (1).FIG. 1 shows the duct system with exclusively horizontal curves in the cold air duct ( 1).FIG. 2 shows the duct system with horizontal and vertical curves in the cold air duct ( 1).List of reference characters1 Cold air duct 2 Warm air chimney 3 Air chamber 4 Lateral connection 5 Curvature

Claims

Passive wall cooling system for brick-shaped building facades according to the termite model, which can be installed in a masonry and has a duct system, characterized in that the cold air duct (1) and the hot air chimney (2) open to the front side and that both ducts end in the air chamber (3) and are connected to the lateral connection (4).The brick according to claim 1, characterized in that the brick is 24 cm long, 7.1 cm high and 11.5 cm at the lowest point of the curvature (5) and 16.5 cm wide at the highest point of the curvature (5).The brick according to any one of the preceding claims, characterized in that the air chamber (3) is located in the rear part of the brick without direct connection to the outside.Brick according to one of the preceding claims, characterized in that the warm air chimney (2) opens above the cold air duct (1) into the air chamber (3) and to the upper outer side of the curvature (5) and has a positive gradient in its course.The brick according to the preceding claims, characterized in that the lateral connection (4) is positioned between the warm air chimney (2) and the top of the cold air duct (1) and connects the two ducts.Brick according to one of the preceding claims, characterized in that the cold air duct (1) opens into the air chamber (3) below the warm air chimney (2) and to the lower outer side of the curvature (5) and has at least one complete horizontal wave in its course.The brick according to claim 6, characterized in that the cold air duct (1) additionally has a complete vertical wave at the connection to the lateral connection (4) in its course.

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