❄️ ANSI/IIAR 2 Ammonia Machinery Rooms (Emergency Exhaust CFM = 29 x √G Mass)

Ammonia (NH3) Machinery Room Ventilation Calculator

Size emergency mechanical ventilation and diffusion wash systems for industrial anhydrous ammonia (R-717 / NH3) refrigeration machinery rooms under ANSI/IIAR 2 & ASHRAE 15: calculate emergency exhaust ventilation airflow (CFM = 29 x Sqrt(System Charge Mass Lbs)), multi-stage ammonia gas sniffer detection thresholds, and refrigeration safety margins.

1. Project & Operating Inputs

Total System Anhydrous Ammonia Charge (Pounds - Lbs e.g. 12,000 Lbs NH3)

Machinery Room Footprint (Square Feet e.g. 3,500 Sq Ft Room)

Customer Bid Price for Emergency Exhaust & Gas Detection Skid ($)

Explosion-Proof Spark-Resistant Fans, NH3 Sensors, Automated Louvers ($)

2. Financial Breakdown & Yield

ANSI/IIAR 2 AMMONIA SAFETY

Turnkey Ammonia Safety Package Profit

Industrial Refrigeration Margin

0.0%

Gross Revenue / Bill

Total Project CapEx

Operating / Material Cost