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- W4366285786 abstract "Energy integration is a strong concern in process synthesis. Most methods are applied with simplifying assumptions for better computational efficiency. Enthalpies are obtained considering constant heat capacities, which is coherent for some processes. However, for streams in near-critical or phase-changing conditions, enthalpy may vary in a strongly nonlinear form. This paper proposes an optimization approach using concepts from Pinch Analysis for utility and heat exchange area targeting considering process and utility stream heat capacity variations with temperature. Decision variables are heat recovery approach temperature (HRAT), final utility temperatures, and energy duties for each available utility. Three case studies were evaluated. Large differences in utility allocations were observed (e.g., in Example 1, for the rigorous cp case, no medium- or low-pressure steam is applied, while high-pressure steam heat duty is 2.32 times the value from the constant cp case). Processing times were reasonable for early design stages (around one minute)." @default.
- W4366285786 created "2023-04-20" @default.
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- W4366285786 date "2023-07-01" @default.
- W4366285786 modified "2023-10-16" @default.
- W4366285786 title "Multiple utilities targeting in energy integration considering rigorous temperature-enthalpy relations" @default.
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- W4366285786 doi "https://doi.org/10.1016/j.ces.2023.118763" @default.
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