🚇 NFPA 130 (Over-Track Exhaust OTE & Under-Platform Exhaust UPE 50,000-150,000 CFM)

Subway OTE & UPE Ventilation Calculator

Size Over-Track Exhaust (OTE) and Under-Platform Exhaust (UPE) mechanical ventilation duct systems beneath passenger platforms in underground subway stations under NFPA 130: capture regenerative braking resistor grid heat directly from undercarriage train cars (50,000 to 150,000 CFM), prevent platform heat buildup, and transit HVAC profits.

1. Project & Operating Inputs

Station Platform Length (Linear Feet e.g. 600 ft Full-Length Platform)

Heat Removal Airflow Demand (CFM e.g. 85,000 CFM Continuous Exhaust)

Customer Bid Price for Supplied & Piped OTE/UPE Duct & Fan Skid ($)

Heavy FRP Under-Platform Ducts, Direct-Drive Vane-Axial Exhaust Fans ($)

2. Financial Breakdown & Yield

NFPA 130 SUBWAY OTE / UPE

Turnkey Subway OTE/UPE System Profit

Transit Environmental Systems Margin

0.0%

Gross Revenue / Bill

Total Project CapEx

Operating / Material Cost