Seeking help with heat exchange networks, Aspen Energy Analyzer

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This post was last edited by greatniu on 2017-7-20 at 14:25. The Aspen Plus process has been calculated, and the logistics data to be integrated were extracted; these logistics data were then manually entered into Aspen Energy Analyzer. The logistics have been processed in detailed segments. The resulting total combination curve is shown in the PDF attached. My integration issue is a threshold problem; no hot utility is required, only cold utility. Here comes the problem: below the pinch point, the sum of the average CPs of all hot streams is less than the sum of the average CPs of the cold streams, which prevents a successful match. Any suggestions based on the overall combination curve? It can be seen that the heat flux is very low in a considerable area, and near-pinch phenomena occur. Is it necessary to perform matching simultaneously at the pinch and near-pinch locations? Thank you all!