Page 134 - Advanced Gas Turbine Cycles
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106 Advanced gas turbine cycles
55.5
55
54.5
E
G !!4
z
;
55.5
Y
y 53
Y
> 52.5
0
52
51.5
51
400 450 500 550 600 850 700 750
SPECIFIC WORK [kJlkg AIR]
Fig. 6.19. Overall efficiency and specific work of RWI plant (after Macchi et al. [9]).
was in the region of 10, but the efficiency plot against pressure ratio was very flat, and of
course the calculation method much simplified.
Macchi et al. presented similar calculations for the HAT cycle based on comparable
assumptions (Fig. 6.20). As to be expected, they obtain efficiencies about 2% higher
57.5
57
* 56.5
0
z
u
w56
LL
Y
W
-I 55.5
ii
w
55
54.5
54
500 550 600 650 700 750 800 850 900 950
SPECIFIC WORK [kJlkg AIR]
Fig. 6.20. Overall efficiency and specific work of HAT plant (after Macchi et al. [9]).
