🌡️ L2A Approach (Direct Air Approach Delta-T <5.0°C, 8,000 CFM Airflow)

Liquid-to-Air CDU Air Approach & Fan Power Calculator

Model dry-coil air approach temperatures ($Delta T_{approach} = T_{coolant} - T_{air} < 5.0^circ ext{C}$) and electrical fan power draw on liquid-to-air CDUs: optimize multi-fan EC matrices ($<3.5 ext{ kW}$ fan power @ $8,000 ext{ CFM}$), maintain GPU cold plate supply coolant at $<45^circ ext{C}$, and energy efficiency profits.

1. Project & Operating Inputs

Coolant Return Temperature (°C e.g. 50.0°C GPU Cold Plate Outlet)

Entering Air Temperature (°C e.g. 24.0°C Data Hall Air Inflow)

Customer Bid Price for Supplied High-Efficiency L2A Array ($)

High-Efficiency CTAF Dry Coils, EC Backward-Curved Fans, Controller ($)

2. Financial Breakdown & Yield

APPROACH DELTA-T <5.0°C

Annual L2A CDU Energy Efficiency Profit

Air-Cooled Data Center Thermal Margin

0.0%

Gross Revenue / Bill

Total Project CapEx

Operating / Direct Cost