Improvement of the Efficiency of Cogeneration Gas-Turbine Units

The scheme of a gas-turbine unit (GTU) with a heat-recovery steam boiler and a hot-water exchanger installed in series is considered. Because the waste gases become wetter, most of the steam from the gases condenses, and the heat output from the GTU increases. Moreover, condensate for feeding the heat-recovery boiler is also obtained in the unit.