Page 316 - Design and Operation of Heat Exchangers and their Networks

302 Design and operation of heat exchangers and their networks

Example H8C7—cont’d

Table 6.31 Problem data for H8C7 (Bjork and Pettersson, 2003).
2
_
Stream T in (°C) T out (°C) C (kW/K) α (kW/m K) Cost ($/kWyr)
H1 180 75 30 2
H2 280 120 60 1
H3 180 75 30 2
H4 140 40 30 1
H5 220 120 50 1
H6 180 55 35 2
H7 200 60 30 0.4
H8 120 40 100 0.5
C1 40 230 20 1
C2 100 220 60 1
C3 40 190 35 2
C4 50 190 30 2
C5 50 250 60 2
C6 90 190 50 1
C7 160 250 60 3
HU 325 325 1 80
CU 25 40 2 10
2
Heat exchanger cost¼8000+500A 0.75 $/yr (A in m )
Total annual cost ($/yr)
Solutions in the literature Reported Revised
Pava ˜o et al. (2017a) 1,497,325 1,497,252
Escobar and Trierweiler (2013) 1,506,667 1,503,317
Pava ˜o et al. (2017b) 1,507,290 1,506,858
Fieg et al. (2009) 1,510,891 1,510,892
Wang et al. (2017) a 1,519,250 1,519,250
a
Pava ˜o et al. (2017c) 1,525,394 1,523,736
Peng and Cui (2015) a 1,527,240 1,526,948
Myankooh and Shafiei (2015) a 1,460,097 1,587,206
a
No stream split.