Civil Engineering Reference
In-Depth Information
Table 9.4
Technical parameters for standard gas turbines
Efficiency
Heat
recovery
Electrical
size unit
Input
power
Specific
consumption
Input fuel as natural
gas
Heat
recovery
Input air flow
Electrical Total
Btu/kWh 10
6
Btu/h
Sm
3
/h
10
3
Sm
3
/h
10
3
kg/h
10
3
lb/h
MW
MW
MW
kJ/kWh
%
%
%
0.6
2.7
16,364
15,511
9.3
286.0
12.9
16.6
36.6
1.4
50
22
72
1
4.0
14,400
13,649
13.6
419.5
18.9
24.4
53.7
2.0
50
25
75
5
15.6
11,250
10,664
53.3
1,638.7
73.7
95.1
209.7
7.8
50
32
82
10
31.3
11,250
10,664
106.6
3,277.5
147.5
190.3
419.5
15.6
50
32
82
25
65.8
9,474
8,980
224.5
6,900.0
310.5
400.5
883.1
32.9
50
35
88
40
114.3
10,286
9,749
390.0
11,986.3
539.4
695.8
1,534.0
57.1
50
35
85
100
263.2
9,474
8,980
898.0
27,600.0 1,242.0
1,602.2
3,532.2
131.6
50
38
88
200
526.3
9,474
8,980
1,796.0
55,199.9 2,484.0
3,204.4
7,064.4
263.2
50
38
88
Notes
Air density in standard conditions 1.29 kg/Sm
3
(0
C, 32
F; 0.1 MPa, 145 psi)
Combustion air 45 Sm
3
per unity of Sm
3
of natural gas (standard for natural gas 15.6
C, 60
F)
Air pressure ratio in the range 5-7
Exhaust temperature 723 K, 450
C, 842
F; stack exhaust temperature 423 K, 150
C, 302
F
Temperature drop available for recovery 300 K, 300
C, 540
F
