SU439252A1 - Thermoelectric generator - Google Patents

Description

The invention of fires to usgroysvam for thermo-epcgric energy conversion.

In heat-generating thermo-epic generators, heat release to the atmosphere was realized by means of hollow ribs pressed by the ends to the thermoelectric battery. The heat transfer from the thermopile to the side surfaces of the ribs is provided by the convective (laminar) movement of the fluid poured into the internal cavity of the ribs, under the action of gravitational forces and temperature gradients.

However, in a known generator between the coolant and the cold

Thermal battery SPEs exhibit a loss of temperature overhead, which is associated with a low heat transfer coefficient during free convective motion of the liquid.

In addition, since the cooling fins are structurally intermixed with a thermal battery, it is difficult to use oiv of the worked heat to heat objects remote from the generator.

The purpose of the invention is to increase the efficiency of the generator by reducing the temperature loss between the cold thermopile junction points and the cooling fluid, ensuring easy start-up and improving the operating conditions of the generator, using the treated heat to heat objects that are remote from it.

This is achieved by installing a turbulizer inside the jacket, which increases the heat transfer coefficient; as well as using a heat transfer tube included in the cooling circuit, in which a vapor-liquid mixture forms, creating the necessary pressure drop for circulating the fluid.

The drawing shows the scheme of the proposed thermogenerator.

Claims (1)

Thermal batteries 2 are located on the hot heat pipe 1, covered with a cover 3 and equipped with a cooling jacket 4. In the gap between the cover and the cooling jacket there is a turbulator 5 in the form of a wire helix. The burner 6 is installed in the lower part of the hot heat pipe, fed by fuel from the tank 7. A heat-dissolving tube 8 is connected to the upper part of the cooling jacket, connected to the pipe 9 connected to the radiator inlet 10 unions. . The jixnax eHHH system has an expansion tank. The electrical load is connected to the electric leads 12 of the thermoelectric module. The design provides for a turbulent flow of liquid in the gap between the cover 3 and jacket 4. due to the formation of a vapor-fluid mixture in the tube 8 and high hydraulic resistance in the gap between the cooling jacket and the module. The hydraulic resistance of the gap between the cover 3 and the jacket 4 is substantially greater than the hydraulic resistance of the rest of the cooling system. The generator works as follows. T MI from the tank is fed to the burner, and the heating system is heated by the flame of a flame and hot gases. The heat flux passes through thermopiles, creating a temperature differential and heats the liquid in the cooling jacket, as a result of which its density decreases. Under the action of the difference between the densities of the fluid in the cooling head and the outer part of the cooling circuit, the fluid circulates in the circuit. Installing a thermoelectric module at an angle to-mount an umbrella facilitates the occurrence of this circulation. The heated fluid enters the heat-insulated tube, where a section with a parasite mixture is formed, which ensures an intensive circulation of the fluid. The height of the heat-insulated tube and the hydraulic resistance of the cavity between the cover and cooling jacket are chosen such that the flow of fluid in the cavity is turbulent. Due to this loss of temperature napo-. rav ps the primary layer is drastically reduced. The fluid flow in the rest of the cooling circuit is laminar, since its hydraulic resistance is substantially less than the hydraulic resistance of the cooling cavity of the thermoelectric module. Thus, the average temperature of the liquid in the cooling jacket is below the boiling point and equal to the average temperature J (liquid in the radiators. Liquid-vapor mixture from the thermally insulated tube, condenses into the horizontal portion of the upper tube. valves are connected to radiators installed in heated rooms. Invention A thermoelectric generator containing a thermoelectric module, a burner device a cooling system in the cooling jacket and radiator pipes, characterized in that, in order to increase efficiency, a turbulator is installed inside the cooling jacket.