Page 322 - Design and Operation of Heat Exchangers and their Networks
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308   Design and operation of heat exchangers and their networks



             Example H13C7—cont’d

            Table 6.34 Problem data for H13C7 (Xiao et al., 2018).
                                                        2
                                        _
            Stream   T in (°C)  T out (°C)  C (kW/K)  α (kW/m K)  Cost ($/kWyr)
            H1       576      437       23.1      0.06
            H2       599      399       15.22     0.06
            H3       530      382       15.15     0.06
            H4       449      237       14.76     0.06
            H5       368      177       10.7      0.06
            H6       121      114       149.6     1
            H7       202      185       258.2     1
            H8       185      113       8.38      1
            H9       140      120       59.89     1
            H10      69       66        165.79    1
            H11      120      68        8.74      1
            H12      67       35        7.62      1
            H13      1034.5   576       21.3      0.06
            C1       123      343       10.61     0.06
            C2       20       156       6.65      1.2
            C3       156      157       3291      2
            C4       20       182       26.63     1.2
            C5       182      318       31.19     1.2
            C6       318      320       4011.83   2
            C7       322      923.78    17.6      0.06
            HU       927      927                 5
            CU       9        17                  1
                                                     2
            Heat exchanger cost¼4000+500A 0.83 $/yr (A in m )
                                                 Total annual cost ($/yr)
            Solutions in the literature    Reported       Revised

            Own work                       –              1,410,649
                          a
            Xiao et al. (2018)             1,447,482      1,435,931
            Escobar and Trierweiler (2013)  1,461,006 b   1,489,667
            Pava ˜o et al. (2016)          1,516,482
            a
            No stream split.
            b
             After revision, H8C1 is deleted.
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