Page 318 - Design and Operation of Heat Exchangers and their Networks
P. 318

304   Design and operation of heat exchangers and their networks



             Example H6C10—cont’d


            Table 6.32 Problem data for H6C10 (Huo et al., 2013).
                                                         2
                                       _
            Stream   T in (°C)  T out (°C)  C (kW/K)  α (kW/m K)  Cost ($/kWyr)
            H1        385     159       131.51    1.238
            H2        516      43      1198.96    0.546
            H3        132      82       378.52    0.771
            H4         91      60       589.545   0.859
            H5        217      43       186.216   1
            H6        649      43       116       1
            C1         30     385       119.1     1.85
            C2         99     471       191.05    1.129
            C3        437     521       377.91    0.815
            C4         78     418.6     160.43    1
            C5        217     234      1297.7     0.443
            C6        256     266      2753       2.085
            C7         49     149       197.39    1
            C8         59     163.4     123.156   1.063
            C9        163     649        95.98    1.81
            C10       219     221.3    1997.5     1.377
            HU1      1800     800                 1.2          35
            HU2       509     509                 1            27
            CU         38      82                 1            2.1
                                            0.6
                                                        2
            Heat exchanger cost¼26,600+4147.5A $/yr (A in m )
                                                  Total annual cost ($/yr)
            Solutions in the literature      Reported      Revised
            Own work                                –      6,673,406
            Brandt et al. (2011)             6,110,902 a   6,790,990
            Zhang et al. (2017) b            6,511,584     7,094,611
            Pava ˜o et al. (2017c) b         7,301,437     7,128,572
            Huo et al. (2013, Fig. 8) b      7,385,856     7,218,412
            Khorasany and Fesanghary (2009)  7,435,740     7,982,270
            Gorji-Bandpy et al. (2011) b     8,220,154     9,048,250
            a
            Inlet/outlet temperatures of cold utility: 31.1°C/35.5°C.
            b
             No stream split.
   313   314   315   316   317   318   319   320   321   322   323