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Recupero di calore ad alta temperatura a Sali Fusi

Smartrec


Spike Renewables sta progettando e realizzando un impianto pilota di laboratorio per il recupero termico ad alta temperatura al fine di definire gli standard per una soluzione modulare e flessibile da applicare su scala industriale nell’industria dell’alluminio e della ceramica. L’impianto prevede l’accumulo termico tramite DMT (Dual Media Thermocline) ed il trasporto del calore tramite Sali Fusi.

Le attività fanno parte del progetto SMARTREC cofinanziato dalla CE all'interno del  programma quadro H2020.

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SMARTREC abstract:

Waste heat is a problem common to high temperature processing industries as a significantly underused resource, often due to challenges in economic heat valorisation. Secondary aluminium recycling and ceramic processing were identified as key examples with economically recoverable waste heat. Several challenges are inherent; these processes are batch-based rather than continuous with corrosive particulate-laden flue gas over a wide temperature range.

The Smartrec system meets these challenges by development of a standard, modular solution for integration of heat recovery with thermal storage that valorizes medium to high grade waste heat, adaptable to different temperatures and industries. Following end-user analysis and characterization of exhaust streams and waste products, full life cycle costing and assessment will be carried out with candidate molten salts selected for thermal storage and heat transfer fluid, validated by corrosion testing. A custom heat pipe heat exchanger will be modelled and designed around the requirements of heat transport capacity wick structure and capable of heat exchange with a molten salt pumping loop.

This loop will include dual media thermocline thermal storage system with cost/system modelling, validation and instrumentation incorporated. A pilot Smartrec system will be constructed and deployed in a secondary aluminum recycler and/or ceramic processor valorizing high grade heat for continuous energy-intensive salt-cake recycling. Smartrec will be validated by integration with existing systems with >6 months operation including a fully developed instrumentation framework. A knowledge-based tool will be developed containing all relevant Smartrec parameters and information to model the system fully and allow users to determine their requirements, potential benefits and integrate Smartrec into their own systems via an open access workshop hosted by the consortium.