Page 108 - Advanced Gas Turbine Cycles
P. 108
Chapter 5. Full calculations of plant eficiency 81
50
45
40
[ 35
3 30
3
(D
p 25
n
20
15
10
lo00 I200 1400 1 600 1800 2000 2200 2400
COMBUSTION TEMPERATURE 'C
Fig. 5.8. Contours of overall efficiency for [CBTIIC~ plant with three step cooling, against combustion
temperature and pressure ratio.
46
45
41
40
200 250 300 350 400 450 500 550 600 650
SPECIFIC WORK [kJlkg exhaust gas]
Fig. 5.9. Overall efficiency and specific work for [CBT]rc3 plant with three step cooling (of first stage and second
nozzle row), with combustion temperature and pressure ratio as parameters (after Ref. [5], Chapter 4).
