Task id13981
The turbine of the Kostroma thermal power plant develops a power of N = 1200 MW in a mode in which the pressure ratio on the isobars is m = 6 (see task. (In a gas turbine, the change in the state of the working fluid is described by a cycle of two isobars and two adiabats (figure). Find the theoretical efficiency turbines, if the pressure ratio on the isobars is equal to m.)). The turbine efficiency is 90% of the theoretical value. What amount of fuel (fuel oil, l = 4•107 J/kg) is needed for continuous operation of such a turbine during
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