Use this method when storage alone must supply the additional air demand during the event, with no significant compressor recovery occurring during the storage discharge period. The tank is sized so that pressure can fall from the initial stored value to the minimum acceptable value while satisfying the full demand flow rate for the duration of the event.

\begin{equation}\label{eq:receiver-tank-dedicated-storage-size} V_{required} = \frac{k_{gal} \cdot t_{demand} \cdot Q_{flow} \cdot P_{atm}}{P_{in} - P_{out}} \end{equation}

Symbols

\(V_{required}\)	Required receiver tank size \([\unit{ \gallon}]\)
\(k_{gal}\)	Gallons per cubic foot (7.48) \([\unit{ \gallon\per\cubicFoot}]\)
\(t_{demand}\)	Duration of the air demand event \([\unit{ \minute}]\)
\(Q_{flow}\)	Required air flow rate during the demand event \([\unit{ \cubicFoot\per\minute}]\)
\(P_{atm}\)	Atmospheric pressure \([\unit{ \psi}]\)
\(P_{in}\)	Initial tank pressure \([\unit{ \psi}]\)
\(P_{out}\)	Final tank pressure \([\unit{ \psi}]\)