GAS-TURBINE POWER PLANT OPERATING PROCESS Russian patent published in 2001 - IPC

FIELD: power engineering; electric power generation. SUBSTANCE: process depends on air compression in air-turbine engine compressor with air compression efficiency within engine as high as 0.85, absorption of heat by engine heat-transfer apparatus in amount equal to that discharged downstream of engine air turbine to wind box of boiler unit followed by air pressure release in engine air turbine and electric power generation by means of generator mounted on same shaft as compressor and turbine. Main-line gas temperature is raised by heat of boiler-unit exhaust gases passed through heat-transfer apparatus of air-turbine engine so that upon pressure release in turbo-expander temperature of main-line gas were still equal to that at inlet of gas heat-transfer apparatus , that is, in which case l = 1.6, engine useful power Q_e = 67 kcal/kg, turbo-expander useful power at pressure drop 1_TE = 1,77 amounts to Q_ee = 62,5 kcal/kg with one- second heat discharge Q_cm = 138 kcal/kg which ensures power plant efficiency η_gxp = 0,94 = 0.94 and fuel saving by more than two times, as well as air turbine efficiency of 0.92. EFFECT: enhanced efficiency and fuel saving. 1 cl, 1 dwg