FIELD: gas-turbine power plants for electrical energy generation in regions abound in cheap fuel.
SUBSTANCE: proposed power plant has compressor operated by electrical energy from power supply mains; steam tube boiler heated by burning solid fuel (coal, peat, fire wood) or liquid fuel (raw oil, fuel oil); gas turbine coupled with electric generator; and running water cooled refrigerator. Working gas (air, nitrogen, argon, helium) is supplied at initial pressure of 2 - 50 at. to compressor wherein it is adiabatically compressed so that gas pressure rises by 2 to 5 times and temperature, by 50 to 250 K; then gas is heated in steam-tube boiler to 800 - 1400 K and passed through nozzles to gas-turbine rotor for rotating turbine and electric generator coupled thereto; in the process it expands and performs mechanical work converted into electrical energy conveyed to power mains. Exhaust gas escaping the turbine flows to running water cooled refrigerator and returns to compressor at initial pressure and temperature for next working cycle that can be repeated without limit. As exhaust gas passes through refrigerator, running water heats and can be used for heating houses and for domestic needs.
EFFECT: enhanced efficiency of power generation using cheaper low-grade fuels compared with steam-turbine plants.
1 cl
