Page 27 - Advanced Gas Turbine Cycles

4 Advonced gas turbine cycles

FUEL ENERGY
SUPPLIED F
1 [HIGHER] t
UPPER
WORK
POWER
OUTPUT WH
PLANT

HEAT
LOSS

BOTTOMING
[LOWER] WORK
POWER OUTPUT WL
I HEAT RWECTED Qr,

Fig. 1.5. Combined power plant.

1.2. Criteria for the performance of power plants
1.2.1. Eficiency of a closed circuit gas turbine plant

For a cyclic gas turbine plant in which fluid is circulated continuously within the plant
(e.g. the plant enclosed within the control surface Yin Fig. 1.2), one criterion of performance

POWER
4 PLANT b
USEFUL HEAT WORK OUTPUT W
OUTPUT Qu

NON-USEFUL