10. 1
OPERATION WITH
DESUPERHEATER
COOLING CAPACITY
INPUT POWER AND
HEATING CAPACITY
The heating capacity that can be obtai-
ned from the desuperheater is obtai-
ned multiplying the nominal value (Pd)
shown in the table under the diagram
for a suitable coefficient (Cd).
For the cooling water temperature
produced different from 7 °C, the
result obtained is multiplied by the cor-
rection factor that can be obtained
from TAV 9. 1 . 1
KEY
The heating capacity available to
the desuperheaters is in the rated
conditions:
Air temperature
Water produced
∆t
Size
Available heating capacity
Water flow rate
Pressure drop
Size
Available heating capacity
Water flow rate
Pressure drop
Size
Available heating capacity
Water flow rate
Pressure drop
Size
Available heating capacity
Water flow rate
Pressure drop
24
10
Cd
TAV.9. 1 . 1
Refrigerated water temperature°C
Multiplicational coefficient
35 °C
45 °C
5 °C
A
1251
1401
1601
1801
kW
70
78,5
88,2
105
m 3 /h
11,8
13,5
15,0
18,0
kPa
4
4
4
4
A
3202
3402
3602
3902
kW
176,5
193,0
223,2
221,2
m 3 /h
30,27
33, 1 9
38,39
38,04
kPa
4
4
4
4
1251
1401
1601
1801
E
kW
63
73
82.5
98
m 3 /h
10.8
15.2
14.2
16.8
kPa
4
4
4
4
E
3202
3402
3602
3902
kW
165
180
195.5
205.5
m 3 /h
28.4
31
33.6
35.3
kPa
4
4
4
4
DESUPERHEATERS
1,40
1,30
1,20
1,10
1,00
0,90
0,80
0,70
0,60
0,50
40
41
42
43
Temperature of the water produced at the desuperheater(∆t 5°C)
The broken line curves refer
to operation in high efficiency mode.
5
0,95
2101
2401
1402
1602
1802
116,5
133,5
76
86,3
98
20,0
23,0
13,0
14,8
16,8
4
4
4
4
4
4202
4502
4802
5003
5203
238,2
249,8
266,5
281,2
298,0
41,0
43,0
45,8
48,3
51,2
4
4
4
4
4
2101
2401
1402
1602
1802
108
124
68
78.5
91
18.5
21.4
11.8
13.5
15.6
4
4
4
4
4
4202
4502
4802
5003
5203
222
232
248.5
263
278
38. 1
40
42.7
45.2
47.8
4
4
4
4
4
44
45
46
47
48 49
7
9
11
1
1,06
1, 1 1
2002
2202
2352
2502
110,8
123,8
129,8
135,7
19,0
21,3
22,3
23,3
4
4
4
4
5403
5703
6003
6303
314,7
326,2
343,0
354,7
54,0
56, 1 0
59,0
61,0
4
4
4
4
2002
2202
2352
2502
102.5
113
119.5
126
17.6
19.5
20.5
21.6
4
4
4
4
5403
5703
6003
6303
293
303
319.5
330
50.5
52.2
54.6
56.7
4
4
4
4
45
45
40
40
35
35
30
30
25
25
20
20
50
13
15
1, 1 7
1,23
2652
2802
3002
146,2
156,7
166,5
25, 1 4
27,0
28,6
4
4
4
6603
6903
7203
371,5
383,0
400,0
63,8
65,8
68,8
4
4
4
2652
2802
3002
135
143.5
155.5
23.2
24.7
26.7
4
4
4
6603
6903
7203
346
356
372.5
59.5
61.2
64
4
4
4