Method — Screening-level estimate
A storage-and-pump screen with an explicit minimum. NOT a code-compliance calculation and NOT an escape or evacuation design.
Every result below is produced by the same engineering engine that feeds the High-Rise reference project, so a quantity taken from this page and a quantity taken from the workflow cannot disagree.
Governing Formula
Governing Formula
P_occ = A_total / density Where:
-
A= Total protected area [m2] -
rho= Occupant density [m2/person]
Derived Equations:
Design fire flow:
Q = A x flow per m2 Tank, never below the minimum:
V = max(minimum, Q x duration / 1000) Duty plus standby per zone:
N_pump = zones x 2 Assumptions & Limitations
- No escape width, travel distance, exit separation, stair pressurisation or smoke control design.
- No sprinkler hydraulic calculation - pipe sizing and pump duty curves are out of scope.
- Rated door count assumes one door per stair per served floor; actual layout depends on the architecture.