METHOD OF ACCELERATING EVAPORATION OF WATER AND DEVICE FOR ITS IMPLEMENTATION

Abstract

The invention relates to a method and device for accelerating the evaporation of liquids, in particular water, using solar energy. The device is made of a polymer material with a density of 0.8-0.95 g/cm.sup.3 and contains a flat base, on the upper and lower surfaces of which there are ribs to ensure that the surface of the base is immersed under the surface of water, while the ratio the mass of the upper, lower ribs and base is 1:1:1. The efficiency of water evaporation is increased due to solar energy absorption into the thin surface layer of water having a thickness from 1 to 10 mm. The method uses the fact that the thin surface layer of water is isolated while the device under the surface of water. As the surface layer evaporates the device is steadily positioned at a given depth below the water surface.

Claims

1. A method of accelerating an evaporation of water, wherein a surface layer of water is isolated by placing a device for accelerating the evaporation of water under the surface layer of water, while a heat absorbed by a base of the device is transferred to the surface water layer to stimulate evaporation, and as the surface water layer evaporates, the device is stably placed at a predetermined level below a surface of the water, wherein the base of the device has ribs on an upper and a lower surfaces; the base being made of a polymer material with a density of 0.8-0.95 g/cm.sup.3, wherein a mass ratio of the upper, the lower ribs and the base is 1:1:1.

2. The method according to claim 1, wherein the surface layer of water has a thickness of 1-10 mm.

3. A device for accelerating evaporation of water, comprising: a flat base, having ribs on an upper and a lower surfaces, the base being made of a polymer material with a density of 0.8-0.95 g/cm.sup.3, wherein a mass ratio of the upper, the lower ribs and the base is 1:1:1.

4. The device according to claim 3, wherein the base has a developed texture.

5. The device according to claim 4, wherein the developed texture is a rough structure.

6. The device according to claim 3, the device is black.

7. The device according to claim 3, wherein the base additionally has an internal cavity of 3-5 mm deep, the cavity is filled with water.

8. The device according to claim 3, wherein a presence of the ribs on the device ensures facilitates its immersion under a surface layer of water with a thickness of 1-10 mm.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

[0028] The invention is illustrated by FIGS. 1-4.

[0029] FIG. 1 shows the device (top view).

[0030] FIG. 2 shows a device immersed under the surface layer of water (side view).

[0031] FIG. 3 shows a device whose base has an internal cavity filled with water, immersed under the surface layer of water (side view).

[0032] FIG. 4 shows a group of devices distributed over the surface of a reservoir.

[0033] In the figures, positions 1-5 are indicated: [0034] 1the base of the device, [0035] 2internal cavity, [0036] 3ribs [0037] 4the surface of the water, [0038] 5an isolated layer of water.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT

[0039] The device is made in the form of a hexagonal base 1 of black color from low pressure polyethylene with a density of 0.95 g/cm.sup.3 and a mass of 30 g with an internal cavity 2 filled with water and ribs of a triangular shape located on the upper and lower surface of the base 3. The height of the ribs on the surface of the base is 10 mm with a total device height of 21 mm, and the total mass of the ribs (upper and lower) is 20 g.

[0040] The device is placed on the surface of the water 4. At the same time, the surface of the base of the device is submerged 95% of its volume under the surface of the water to a depth of 1-10 mm, due to a flotation of the device provided by the mass of the device and its design, including the location of the ribs relative to the base. The positive buoyancy of the device is partially compensated by the mass of ribs located above the water level so that the base of the device is always under a layer of water of a given thickness, thereby isolating the surface layer of water. The sun's rays penetrate the insulated layer of water 5, and under their influence the base of the device heats up. The internal cavity of the base prevents the diffusion of heat into the deep water. Most of the heat received by the device is transferred to the surface layer of water, helping to increase its temperature, increase the pressure of saturated vapors on the surface of the liquid, thus leading to evaporation of the liquid from the surface of the insulated layer. As water evaporates from the surface layer, it is replenished from the periphery of the device, due to the difference in the densities of water and the device (given the buoyancy of the device).

[0041] The given example is a special case and does not exhaust all possible implementations of the group of inventions.