방법론
유량과 유효 성분 투입량으로 유효 성분 수요를 계산한 뒤 입력된 유효 성분 질량분율과 제품 밀도로 제품 공급량, 저장량, 펌프 유량을 선별합니다. 제품 강도와 밀도는 사용자 입력이며 모델이 추정하지 않습니다.
Active demand = flow × user-entered active dose × 0.001. Commercial product mass = active demand / user-entered active mass fraction, where fraction means active ingredient mass per commercial product mass.
Product solution volume = commercial product mass / user-entered product density (kg/L). Normal feed = daily solution volume / 24 h.
Working storage = daily product volume × storage days. Gross storage basis = working storage / usable storage fraction.
Minimum and maximum feed cases use the entered design doses. Required turndown = maximum / minimum feed when minimum feed is positive.
Pump-rate screening assumes entered duty pumps share the required feed equally. Pump staging/on-off control is not modeled.