Metodologia
Calcola volume utile, ricambio nominale e continuità dell’inventario per intervallo da ingressi, uscite e durate dichiarati. Il ricambio nominale non è età reale dell’acqua, RTD, tempo di contatto con tracciante T10 o CT di disinfezione; lo strumento non calcola T10.
Usable storage = gross storage × user-entered usable fraction. Operational storage is separately entered as a declared operating-storage basis and remains a subset of usable storage.
Nominal turnover time = usable storage / average throughput; nominal turnovers/day = average throughput / usable storage.
Interval continuity uses Snext = Scurrent + (Qin − Qout) × duration. When physical limits are enabled, overflow is recorded above the maximum and supply shortfall below the minimum; the modeled endpoint is limited to the applicable bound.
Working storage swing = maximum modeled inventory − minimum modeled inventory, including initial inventory and all modeled interval endpoints.