Environmentally friendly and economical warm air foil fireplaces

Abstract

The balloons used are tethered balloons filled with light gases, such as helium and hydrogen, or mixtures thereof. From a topological point of view, they have the shape of torus-shaped hollow bodies, and their hyperboloid-shaped upwardly tapered or continuously cylindrical openings are used as double-walled foil warm air chimneys.

Description

[0001] Warm air chimneys are required for the appropriate discharge of warm air flows for energy generation from greenhouses, for warm air production, and / or for cloud formation for rain production or cloud formation for climate cooling through sunlight reflection and for the breakdown of methane by the hydroxyl radicals formed in the clouds.

[0002] Chimneys that reach heights of 500 m to 2500 m or even more above ground or sea level are particularly suitable for this purpose. The construction and operation of such tall structures using conventional methods involves exceptionally high manufacturing and maintenance costs.

[0003] These disadvantages can be significantly reduced with the use of the warm air foil chimneys.

[0004] These are flexible double-walled chimneys that derive their stability from being filled with pressurized fluids and anchored to the ground, according to the principles of position and shape stabilization of flexible hollow bodies.

[0005] The stabilization of the claimed double-walled foil chimney is achieved by a chimney double wall filled with light gas, which flexibly encloses at least one gas-tight sealed cavity, and in which one or more cavities are contained a gas under overpressure that exerts both sufficient overpressure in the double-walled cavity and has a lower density than air, and in which the volume of the cavity is sufficient to provide the Fatien chimney with sufficient buoyancy.

[0006] The warm air flowing into the hollow cylindrical or hollow hyperbolic foil chimney is additionally stabilized by the warm air.

[0007] In addition to these stability principles, the double-wall foil chimneys used are stabilized in their position according to the known principles of stable anchoring on solid or floating substrates.

[0008] Therefore, the hot air chimneys used can be built and operated at a lower cost compared to conventional concrete construction. Description of the claimed foil chimneys.

[0009] In the Fig. Figure 1 shows the basic structure of a claimed foil chimney (1) as an example. From a topological point of view, this is a torus-shaped hollow body of sufficient volume, the light gas filling of which with helium and / or hydrogen gives the foil chimney buoyancy in the atmosphere.

[0010] The one in Fig.The double-walled foil chimney shown in 1 consists of a cylindrical, double-walled plastic foil tube (2) anchored at its lower end, the hollow interior of which is filled with helium and / or hydrogen. Instead of the double wall being cylindrical on both sides, the outer foil wall can also have a shape that deviates completely from the cylindrical form. Or the inner foil wall can, for example, narrow upwards in a hyperboloid shape.

[0011] In principle, from a topological point of view, the chimney is therefore a torus-shaped tethered balloon (1) filled with helium and / or hydrogen, held in an almost vertical position on a foundation (13, 14), while warm air (2) from a greenhouse covered with a transparent greenhouse roof (4) flows into a mixing chamber (5) and from there is vertically discharged through the double-walled chimney made of plastic film (1) and then emitted from the chimney opening at its upper end as a condensing vapor cloud (8). The double-walled cavity in the chimney's double wall (1) is filled with a light gas, for example hydrogen and / or helium, via the pressurized gas hose (12) and can also be emptied in the same way by pumping the gas back into the pressurized gas container (3) with a compression pump (7) and then closing the valve (6).The emptying of the cavity in the chimney double wall (1) is only carried out in the case of maintenance work or in the case of severe weather with lightning or storm threatens.

[0012] Suitable materials for the foil liner of the chimney include, for example, UV-resistant fluorinated plastic polymers. Those with carbon or glass fiber reinforcement are preferred. Reference symbol list (1) A flexible, double-walled chimney stabilized by buoyancy for the vertical discharge of heated and humidified warm air (2) for its transport to cloud level. The double wall of the chimney consists of a gas-tight and UV-resistant rubber skin or plastic film. The space between the chimney's double walls is filled with a light gas or a light gas mixture of hydrogen and helium under slight overpressure. (2) Warm and moist air produced in a warm house with a transparent greenhouse roof under solar radiation and water evaporation. (3) Pressurized gas storage tank for hydrogen and / or helium for filling or emptying the hot gas chimney with hydrogen and / or helium (4) Warm house roof (5) Mixing chamber for mixing the warm gas (2) with cloud condensation nucleus aerosol (CCN) (6) Shut-off valve (7) Pressure gas pump for emptying the light gas from the chimney double wall (1) into the pressure gas container (3) (8) Emitted moist warm gas which, after its emission from the chimney (1), rises to cloud level as a condensing droplet aerosol (9) Chimney height: 500 m to 2500 m (10) Chimney internal diameter: 5 m to 50 m (11) Warm house floor (12) Pressurized gas line for filling and emptying the chimney double wall (1) with light gas (13) Mixing chamber wall provided with numerous openings for the entry of the hot gas (2) into the mixing chamber (5), which also serves to fix the rising chimney. (1) serves (14) Steel-reinforced foundation slab of the mixing chamber wall (15) Chimney double wall distance: 5 m to 50 m

Claims

[1] A double-walled cylindrical or tapered foil chimney anchored to the ground, comprising an inner and an outer foil wall, by which a cavity filled with one or more light gases is enclosed in a gas-tight manner, and in which the volume of light gas enclosed by the foil double wall and the pressure prevailing therein are dimensioned such that the foil chimney experiences buoyancy. [2] Chimney according to claim 1, characterized by that the light gases are helium and hydrogen gas. [3] Chimney according to claim 1 and at least one of the following, characterized by that the cavity filled with one or more light gases is under overpressure. [4] Chimney according to claim 1 and at least one of the following, characterized by that the double-walled film consists of a plastic film resistant to UV radiation. [5] Chimney according to claim 1 and at least one of the following, characterized by that the double-walled film consists of a fiber-reinforced and / or fluorinated plastic film. [6] Chimney according to claim 1 and at least one of the following, characterized by that the double-walled film contains a fiber reinforcement from the group of glass fibers or carbon fibers. [7] Chimney according to claim 1, and at least one of the following, characterized by that the chimney is stabilized in position according to the conventional principles of anchoring on solid or floating ground, for example by means of cable pull and / or screw connections.

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