Optimizing Design and Controls for Thermal Energy Storage

Lumped Mass Approximation Model • Treats the thermal energy storage as an RC-circuit with an effective resistance and capacitance based on material and geometric properties • Defines a time constant capturing the impact of the driving. temperature difference • Relates the time required for a nearly complete discharge (99%) to the time required for discharge determined by the target C-rate % Discharge 63.2% τ Ttransition Ceff Reff Tcutoff 100% Discharge time

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