Page 253 - Sustainability in the process industry

230 Cha p te r T e n

Source Source Source Source
TB [°C]
A1 A2 B1 B2
180
ΣCP = 2 ΔH = 100
130
ΣCP = 0 ΔH = 0
90
ΣCP = 1 ΔH = 20
70
ΣCP = 3 ΔH = 60
50
ΣCP = 6 ΔH = 180
20
ΔH [kW] 40 180 100 40
CP [kW/°C] 1 6 2 2
FIGURE 10.10 Combined Site heat sources for Problem 3(c).

FIGURE 10.11 TB [°C]
Combined Site Sink A1 Sink A2 Sink B1
heat sinks for 250
Problem 3(c). ΣCP = 4 ΔH = 240
190
ΣCP = 0 ΔH = 0
150
ΣCP = 7 ΔH = 280
110
ΣCP = 5 ΔH = 50
100
ΔH [kW] 280 50 240
CP [kW/°C] 7 5 4

Temperature
250

Temperature interval with
100 kW heat recovery via
the steam system
∗∗ 150
T = 130°C
∗∗
T = 117.1°C
50

−400 −200 0 200 400 600
ΔH [kW]
FIGURE 10.12 Total Site Profi les for Problem 3(c).