Page 460 - Advanced thermodynamics for engineers
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19.2 STEP 1: TEMPERATURE INTERVALS 451
Table 19.2 Ordering of Hot and Cold Streams
Supply Target
Stream Stream Temperature Temperature Adjusted
No Type T S /( C) T T /( C) Temperatures Order
1 Cold 95 95 T 9
205 205 T 5
2 Cold 40 40 T 13
220 220 T 4
3 Hot 310 300 T 1
205 195 T 6
4 Cold 150 150 T 7
205 205 Duplicate
5 Hot 245 235 T 3
95 85 T 10
6 Cold 65 65 T 11
140 140 T 8
7 Hot 280 270 T 2
65 55 T 12
400
210 MJ/h
300
Temperature/ C 200
o Hot stream
100 Cold stream
Pinch
0
0 500 1000 1500 2000
Heat load / MJ/h
FIGURE 19.5
Temperature – heat load diagram.
