TY - JOUR
T1 - An algorithmic approach to generate timesharing schemes for multi-period HEN designs
AU - Jiang, Da
AU - Chang, Chuei Tin
N1 - Publisher Copyright:
© 2014 The Institution of Chemical Engineers.
PY - 2015/1/1
Y1 - 2015/1/1
N2 - Without changing the conceptual configuration of a given multi-period HEN design, it has been shown in this work that the total capital cost can be significantly reduced by allowing a chosen set of exchangers to be shared by more than one match in different periods. Systematic synthesis strategies have been developed to generate the timesharing schemes needed for realizing this novel idea. The proposed strategies can be implemented either with generic area allocation algorithms or by solving a MINLP model. The former approach is not only easy to use but also effective for creating practical solutions which are near optimal. Somewhat better results may be obtained by using the latter method with considerably larger computation effort. Based on the extensive case studies performed so far, it was found that both approaches are applicable for generating the timesharing schemes that achieve significant saving in capital investment.
AB - Without changing the conceptual configuration of a given multi-period HEN design, it has been shown in this work that the total capital cost can be significantly reduced by allowing a chosen set of exchangers to be shared by more than one match in different periods. Systematic synthesis strategies have been developed to generate the timesharing schemes needed for realizing this novel idea. The proposed strategies can be implemented either with generic area allocation algorithms or by solving a MINLP model. The former approach is not only easy to use but also effective for creating practical solutions which are near optimal. Somewhat better results may be obtained by using the latter method with considerably larger computation effort. Based on the extensive case studies performed so far, it was found that both approaches are applicable for generating the timesharing schemes that achieve significant saving in capital investment.
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U2 - 10.1016/j.cherd.2014.04.011
DO - 10.1016/j.cherd.2014.04.011
M3 - Article
AN - SCOPUS:84920759095
SN - 0263-8762
VL - 93
SP - 402
EP - 410
JO - Chemical Engineering Research and Design
JF - Chemical Engineering Research and Design
ER -