Multiperiod work and heat integration

The synthesis of multiperiod heat exchanger networks (HEN) is a well-studied topic in integration. Several methods for identifying network designs that are able to feasibly operate under multiple conditions have been presented. Multiperiod models certainly notable form achieving such resilient designs. In work and integration, however, solutions presented so far nominal only. This presents step-wise optimization-based exchange framework. Hybrid meta-heuristic used the optimization steps. methodology obtain (WHENs) known scenarios. A set critical stream properties integration proposed. When these scenarios modeled as finite operating periods (which here referred non-nominal periods), WHEN which can be obtained. An example tackled two cases: first, with one six critical, periods; second twelve periods. Note number periods, problem considerably more complex than HEN usually comprises three or four periods). Solutions obtained present method compared those obtaining by simply merging single-period each period individually. Capital investments 30.2% 58.2% lower Cases 1 2 straightforwardly merged solutions. capacity utilization parameters also demonstrate overdesign issue notably reduced