RU16768U1 - GRAVITY-HEAT POWER PLANT - Google Patents

Abstract

Gravity-thermal power plant containing a closed pipeline, H high, a turbine and an electric generator, characterized in that it further comprises tanks with nozzles for coolant injection in the upper and lower parts of the pipeline, a heat pump located in the lower part of the pipeline, and a refrigeration unit located in the upper part of the pipeline, and the pipeline height satisfies the condition: where ΔT is the specified temperature period, s = 1 kJ / (kg • deg) is the heat capacity of air at constant pressure, g = 9.8 m / s accelerator free fall.

Description

Gravity Thermal Power Station

2000122871

   F03G7 / 04

The utility model relates to the field of energy, in particular, to systems for generating electricity, namely to gravity systems, can be used as a backup source of energy.

A device is known that contains two shaft shafts (pipelines), a heat exchanger, a turbine and a generator (see US patent No. 4137719 IPC F03G 7/04, publ. 1977)

The disadvantage of this device is the difficulty in supplying heat to a heat exchanger located at the bottom of the shafts.

A gravitational thermal power plant is known which contains two pipelines, the upper and lower points of which are spaced apart in height by H, and due to natural temperature differences in natural conditions, the upper point of the pipelines has a temperature Tz, and the lower point of the pipeline has a temperature Tj. Since T2 TI, an air stream arises which is passed through a turbine connected to an electric generator (see Journal of Electricity and Life, No. 2, Znak Publishing House, M. 2000, p.2, prototype).

The disadvantage of the prototype are low natural temperature differences, low efficiency of the conversion of heat to work, low electricity level.

This utility model eliminates these disadvantages.

The technical result of the utility model is to increase the efficiency of converting gravitational-thermal energy into electrical energy.

The technical result is achieved by the fact that the gravitational thermal power plant, containing a closed pipeline of height H, a turbine and an electric generator, further comprises reservoirs with nozzles for injecting coolant in the upper and lower parts of the pipeline.

a heat pump located in the lower part of the pipeline and a refrigeration unit located in the upper part of the pipeline, and

the pipeline height satisfies the condition I, where AT is the given

temperature period, Cp 1 kJ / (kg deg) - heat capacity of air at

CONSTANT pressure,, 8 m / s - acceleration of gravity.

The essence of the utility model lies in the fact that by heating an additional upstream stream at AT, and the downstream stream, cooling by the value of -AT, it is possible to obtain an additional temperature difference between the 2AT flows. Due to this, a gain in the work of the AA power plant is obtained. At the same time, it is required to spend the work A on additional heating and cooling. The use of a heat pump and a refrigeration unit for these purposes, which operate according to the reverse Carnot cycle, allows these losses to be minimized.

The analysis showed that for optimal AT mode should be

selected from the ratio: ATs, -, where, 8 m / s - acceleration of free

fall, Day / (kg-deg) - heat capacity of air at constant pressure.

The essence of the utility model is illustrated in figure 1, which shows in the context of a gravitational thermal power plant (side view), and figure 2. The frontal projection of the power plant is shown.

The power plant is arranged as follows. Along the steep slope of the mountain are two parallel pipes 1 and 2, filled with gas or air. Above and below the pipes are interconnected using tanks 5 and 6, forming a closed pipeline. A wind turbine 3 with an electric generator 4 and a heat pump 7 are connected to the reservoir 5, and a refrigeration unit 8 is connected to the reservoir 6. The reservoirs contain nozzles and coolant injection systems. In FIG. 1 and 2, they are not shown.

The power plant operates as follows. The coolant (warm water) is injected into the pipe 1 from the bottom of the tank 5, and the coolant (water) from the tank 6 is injected from the top 2 into the pipe 2. As a result, the air temperature in the pipelines 1 and 2 is different, and the heavier air column through the pipe 2 is lowered down, and a lighter column of air through the pipe 1 rises up according to the rules of communicating vessels. A wind draft occurs, which rotates the turbine 3. In the steady state, the amount of warm water raised up into the tank 6 is equal to the amount of cold water falling down into the tank 5. When the temperature of the water in the tanks 5 and 6 is equalized, the wind disappears and the turbine stops. Such installations are capable of operating at negligible temperature changes. The heat pump 7 provides additional heating of the air rising through the pipe 1, relative to the outside temperature, and the refrigeration unit 8 provides additional cooling of the air, which drops down the pipe 2. As a result, the power of the power plant can be increased by 1.5-2 times.

We give an approximate calculation of a power plant for the case when Н 2 km, pipe diameter D - bm, with a natural temperature difference AT and additional overheating of ATj. Then the total temperature difference will be Gu. Work A, which will perform a gas stream

for one cycle, will be: 4 t here p 1.29

kg / m - air density, T. As a result, the work per cycle is 160 MJ. If we assume that the cycle duration is 100 s, then the turbine power is 1.6 MW.

This utility model will find wide application in a number of regions of Russia, not only as a backup source of electricity, but also as the main one, as Russia is one of the coldest countries in the world.

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Claims (1)

Gravity-thermal power plant containing a closed pipeline, H high, a turbine and an electric generator, characterized in that it further comprises tanks with nozzles for coolant injection in the upper and lower parts of the pipeline, a heat pump located in the lower part of the pipeline, and a refrigeration unit located in the upper part of the pipeline, and the height of the pipeline satisfies the condition:

where ΔT is the given temperature period, with _p = 1 kJ / (kg • deg) is the heat capacity of air at constant pressure, g = 9.8 m / s ² is the acceleration of gravity.