FR2946130A1 - Air and water heating system i.e. solar heater, has inlet and outlet allowing air to circulate in cans, to return and leave cans during exposure to sun and to heat air and liquid, where cans are equipped with elongated spiral shaped plates - Google Patents

Abstract

The system has standard cans containing drink such as soda, juice, coke or beer, and piled up on one another, where upper part of each can is removed. Lower part of each can has the shape of an end fitting (3) and a propeller (1) with blades. A tube is introduced into each can and filled with liquid. An inlet and an outlet allow air to circulate in the cans, to return and leave the cans during exposure to the sun and to heat the air circulating in the cans and the liquid circulating in the tube. The cans are equipped with vertically arranged elongated spiral shaped plates.

Description

The invention presented here relates to a heating system of air and water simultaneously. Hot air and hot water are produced in a solar boiler that combines the production of hot and hot air while improving the efficiency of the solar collectors.

Current solar systems produce hot air or hot water. To produce comfort heating with conventional solar systems, the water must pass through radiators or a water / air heat exchanger. Also, to produce hot water with solar systems for producing hot air, have used an air / water heat exchanger. The yield is relatively low.

Standard cans (soda, juice, coca, beer) are treated so that the aluminum of the outer wall, which is usually covered by the product logo, is exposed.

A helix and a tip are formed on the bottom of the bobbin whose upper part is previously removed (Fig.2 & 3 page 2/6). The degree of inclination of the propeller, the number of blades and its shape will determine the speed of the air in the can.

The tip is formed towards the inside of the bobbin. The longer the nozzle, the greater the heat transfer between it and the copper pipe.

There are two types of cans. Bobbin D with the propeller blades pointing to the right (clockwise) (Fig. 2 A page 3/6).

Bobbin G with the propeller blades pointing to the left (counterclockwise) (Fig. 2 B page 3/6)

Aluminum cans are cut into thin strips and formed into elongated spirals (Fig.4 page 4/6).

A copper tube is inserted into the tip of the D-type bobbin. The bobbin is filled with elongated spiral-shaped slats (Fig. 5 page 4/6). The slats are arranged in the bobbin so that they follow the direction of rotation of the helix of the bobbin.

A can of type G is introduced from the upper part is filled with slats which follow the direction of orientation of its propeller. (Fig. 6 & 7 page 5/6) A nesting system is created to stack the cans in a click-clack system.

The outer wall (exposed to the sun's rays) of the can is treated with black chrome to give it the characteristics of a selective layer.

The inner wall of the bobbin is polished to reflect maximum heat towards the aluminum lamellae and the copper tube. The lamellae and the copper tube are painted black for maximum heat absorption.

The system is mounted in an insulated structure whose part exposed to the sun is covered with UV stabilized plexiglass (Fig. 8 page 6/6).

The air entering through the lower part of the boiler (solar collector) is heated by the high temperature inside the cans exposed to the sun's rays.

By the suction effect of the fan at the top of the boiler and the thermosiphon effect, the air rises upwards. The helix and the slats of the first bobbin rotate the air in one direction (vortex).

Arrived at the second can, the propeller of this one forces the air to change direction of orientation (counter-vortex).

A settling effect of the air is obtained at each step (can). The air becomes hotter and heavier.

The slats that are in contact with the copper pipe, the hot air and the nozzle, transfer maximum heat to the pipe.

Once the heated air has reached the last stage of the system (last can) it is blown to the place to be heated.

The liquid in the pipe flows in a closed circuit between the boiler and the cumulus. To lower the boiling temperature of the liquid inside the pipe, it is composed of water and antifreeze under pressure. The liquid carried in the pipe will heat the cumulus water.

An autonomous system of adjustment is planned to optimize the yield.

At night or in very cold weather, we can reverse the effect of the system. The liquid in the copper pipe transports heat from the cumulus to heat the air in the boiler, which ejects it to the place to be heated.

Claims (7)

CLAIMS1) Air heating system and water simultaneously, characterized in that it consists of: - standard drink cans (soda, juice, coca, beer, etc.) stacked on top of each other, of which the upper part of each is removed and the lower part of each has the shape of a propeller with blades, and a tip. - a tube inserted into the cans and filled with a liquid, - an inlet and an outlet to allow air to circulate in the cans, to come in and out, the cans, at their sun exposure, serving to heat the liquid flowing 10 in the tube and the air circulating in the cans. 2) System according to claim 1 characterized in that the cans are filled with lamellae arranged vertically. 3) System according to claim 2 characterized in that the slats are shaped elongate spiral. 15 4) System according to any preceding claim characterized in that the blades of the propeller constituting the lower part of the bobbin are oriented to the left to force the air to turn left. 5) System according to one of claims 1 to 3 characterized in that the blades of the helix constituting the lower part of the bobbin are oriented to the right to force the air to turn right. 6) System according to claims 4 and 5 characterized in that the cans are stacked so as to alternate the canisters with blades oriented to the right and the canisters with blades oriented to the left. 7) System according to any preceding claim 25 characterized in that the inner wall of the can is polished.