📐 RDHx Coil Drop (Water Delta-P <8.0 PSI, Air Exhaust Backpressure <0.02" H2O)

Rear Door Heat Exchanger Pressure Drop Calculator

Size multi-row copper-tube aluminum-fin (CTAF) cooling coils inside rear doors: optimize hydronic water-side pressure drop ($Delta P_{water} < 8.0 ext{ PSI}$ @ $25 ext{ GPM}$) and air-side aerodynamic drag ($Delta P_{air} < 0.02 ext{" H}_2 ext{O}$), preventing server fan overspeed, and data center PUE profits.

1. Project & Operating Inputs

Chilled Water Coil Flow (GPM e.g. 24 GPM Chilled Water / Rack Door)

Airflow Throughput (CFM e.g. 4,800 CFM Server Rack Exhaust)

Customer Bid Price for Supplied Balancing Valve Array ($)

Dynamic Balancing Valves, CTAF Low-Pressure Drop Coils, Manifold ($)

2. Financial Breakdown & Yield

LOW-DRAG REAR DOOR COILS

Turnkey RDHx Hydraulic Balancing Array Profit

Hydronic Thermal Efficiency Margin

0.0%

Gross Revenue / Bill

Total Project CapEx

Operating / Direct Cost