🚆 NFPA 130 / SES Simulation (Train Piston Effect Displacement CFM & Station Cooling)

Subway Piston Effect Ventilation Calculator

Model aerodynamic train piston effect air displacement and station platform environmental cooling requirements for underground rapid transit systems under NFPA 130 & Subway Environment Simulation (SES): calculate train braking aerodynamic draft displacement, size station platform air curtain barriers and blast relief shafts, and transit engineering margins.

1. Project & Operating Inputs

Underground Station Platform Volume (Cu Ft e.g. 450,000 Cu Ft Station)

Peak Train Speed Entering Station (MPH e.g. 35.0 MPH Train Deceleration)

Customer Bid Price for Supplied & Integrated Platform Ventilation ($)

Heavy Transit Axial Fans, Blast Relief Dampers, Acoustic Silencer Bank ($)

2. Financial Breakdown & Yield

NFPA 130 SUBWAY VENTILATION

Turnkey Subway Station HVAC Profit

Rapid Transit Mechanical Contractor Margin

0.0%

Gross Revenue / Bill

Total Project CapEx

Operating / Material Cost