50 I I I I I I I I
49
48
A
*
E 47
0
-
3 46
0
t 45
W
iY
4
9 43
0
42
41
40
15 20 25 30 35 40 45 50 55
PRESSURE RATIO
Fig. 5.2. Overall efficiency of [CBTIlcl plant with single-step cooling of NGVs, as a function of pressure ratio with combustion temperature as a parameter.