Page 239 - Design and Operation of Heat Exchangers and their Networks

228 Design and operation of heat exchangers and their networks

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FPM c ¼594.6m , δ f,h ¼0.11mm, δ f,c ¼0.10mm, and l s,h ¼l s,c ¼10mm,
N fl,h ¼10. The detailed calculation procedure can be found in the
MatLab code for Example 5.2 in the appendix.
Under the new conditions used in this example and looking for the
minimum total annual cost, we can also evaluate the design parameters
taken from the literature for comparison:
Mishra et al. (2009): L h ¼0.994m, L c ¼0.883m, h f,h ¼h f,c ¼9.53mm,
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FPM h ¼FPM c ¼534.9m , δ f,h ¼δ f,c ¼0.146mm, l s,h ¼l s,c ¼6.3mm,
N fl,h ¼8.
Rao and Patel (2010): L h ¼0.925m, L c ¼0.996m, h f,h ¼h f,c ¼9.8mm,
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FPM h ¼FPM c ¼442.9m , δ f,h ¼δ f,c ¼0.1mm, l s,h ¼l s,c ¼9.8mm,
N fl,h ¼10.
Zarea et al. (2014): L h ¼0.995m, L c ¼0.995m, h f,h ¼h f,c ¼9.99mm,
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FPM h ¼FPM c ¼405.69m , δ f,h ¼δ f,c ¼0.167mm, l s,h ¼l s,c ¼9.998mm,
N fl,h ¼10.
Segundo et al. (2017): L h ¼0.996m, L c ¼0.994m, h f,h ¼h f,c ¼9.99mm,
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FPM h ¼FPM c ¼1000m , δ f,h ¼δ f,c ¼0.1mm, l s,h ¼l s,c ¼8.82mm,
N fl,h ¼10.
The results are listed in Table 5.3.

Table 5.3 Comparison of the optimal design results under the new conditions.
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Sources A (m ) Q (kW) C E (k$/yr) C U (k$/yr) TAC (k$/yr)
Mishra et al. (2009) 171 172 2.188 6.139 8.327
Rao and Patel (2010) 195 169 2.368 1.600 3.968
Zarea et al. (2014) 198 169 2.385 1.628 4.013
Segundo et al. (2017) 432 185 3.813 4.614 8.427
Present work 136 166 1.910 1.634 3.544

References
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