TY - JOUR
T1 - Simultaneous Utility and Heat Exchanger Area Targeting for Integrated Process Synthesis and Heat Integration
AU - Kong, Lingxun
AU - Wu, Yaqing
AU - Maravelias, Christos T.
N1 - Funding Information:
This work was funded by the DOE Great Lakes Bioenergy Research Center (DOE BER Office of Science DE-FC02-07ER64494).
Publisher Copyright:
© 2017 American Chemical Society.
PY - 2017/10/18
Y1 - 2017/10/18
N2 - We propose a mixed-integer nonlinear programming (MINLP) model for simultaneous utility and heat exchanger area targeting with variable stream conditions. The model represents the composite-curve-based area targeting method by constructing the hot and cold composite curves mathematically. We introduce a "dynamic" enthalpy grid onto which the stream inlet/outlet temperatures and enthalpies are mapped. By calculating the temperatures at each grid point and the stream heat duties at each interval, the utility consumption and heat exchanger areas are simultaneously optimized using an economic criterion. We discuss preprocessing methods tailored to aid the solution of the proposed MINLP model. The model is applied to two illustrative examples as well as an example where it is integrated with a process synthesis model.
AB - We propose a mixed-integer nonlinear programming (MINLP) model for simultaneous utility and heat exchanger area targeting with variable stream conditions. The model represents the composite-curve-based area targeting method by constructing the hot and cold composite curves mathematically. We introduce a "dynamic" enthalpy grid onto which the stream inlet/outlet temperatures and enthalpies are mapped. By calculating the temperatures at each grid point and the stream heat duties at each interval, the utility consumption and heat exchanger areas are simultaneously optimized using an economic criterion. We discuss preprocessing methods tailored to aid the solution of the proposed MINLP model. The model is applied to two illustrative examples as well as an example where it is integrated with a process synthesis model.
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U2 - 10.1021/acs.iecr.7b01689
DO - 10.1021/acs.iecr.7b01689
M3 - Article
AN - SCOPUS:85031787032
SN - 0888-5885
VL - 56
SP - 11847
EP - 11859
JO - Industrial and Engineering Chemistry Research
JF - Industrial and Engineering Chemistry Research
IS - 41
ER -