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RSS FeedsEnergies, Vol. 12, Pages 1877: An Optimal-Control Scheme for Coordinated Surplus-Heat Exchange in Industry Clusters (Energies)


17 may 2019 00:00:12

Energies, Vol. 12, Pages 1877: An Optimal-Control Scheme for Coordinated Surplus-Heat Exchange in Industry Clusters (Energies)

Industrial plants organized in clusters may improve their economics and energy efficiency by exchanging and utilizing surplus heat. However, integrating inherently dynamic processes and highly time-varying surplus-heat supplies and demands is challenging. To this end, a structured optimization and control framework may significantly improve inter-plant surplus-heat valorization. We present a Modelica-based systems model and optimal-control scheme for surplus-heat exchange in industrial clusters. An industry-cluster operator is assumed to coordinate and control the surplus-heat exchange infrastructure and responsible for handling the surplus heat and satisfy the sink plants’ heat demands. As a case study, we use an industry cluster consisting of two plants with surplus heat available and two plants with heat demand. The total surplus heat and heat demand are equal, but the availability and demand are highly asynchronous. By optimally utilizing demand predictions and a thermal energy storage (TES) unit, the operator is able to supply more than 98% of the deficit heat as surplus heat from the plants in the industry cluster, while only 77% in a corresponding case without TES. We argue that the proposed framework and case study illustrates a direction for increasing inter-plant surplus-heat utilization in industry clusters with reduced use of peak heating, often associated with high costs or emissions. Digg Facebook Google StumbleUpon Twitter
39 viewsCategory: Biophysics, Biotechnology, Physics
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