Data Center Cooling Load Calculator
dc_calculate_cooling_loadCalculate data center cooling capacity requirements in kW, tons, and BTU/hr from IT load, PUE, and environmental factors, and get design recommendations.
Instructions
Calculate the total cooling load for a data center facility based on IT load, PUE, and environmental factors.
This tool computes cooling capacity requirements in kW, tons, and BTU/hr, estimates required airflow in CFM, rates the facility's PUE efficiency, and provides actionable recommendations for cooling system design.
Accounts for: IT heat rejection, electrical overhead losses, lighting loads, humidification, and altitude derating above 5,000 ft.
Args:
it_load_kw (number): Total IT electrical load in kW
pue (number): Power Usage Effectiveness ratio (1.0-3.0)
safety_factor (number): Design margin (default 1.15 = 15%)
lighting_area_sqft (number): Floor area for lighting heat gain
include_humidification (boolean): Include humidification load
altitude_ft (number): Site altitude for equipment derating
design_outdoor_temp_f (number): ASHRAE design day temperature
Returns structured JSON with cooling_load_kw, cooling_load_tons, cooling_load_btu, estimated_airflow_cfm, pue_rating, and engineering recommendations.
Examples:
"Calculate cooling for a 2 MW data center with PUE of 1.4" -> it_load_kw: 2000, pue: 1.4
"What cooling do I need for 500 kW at 6000 ft altitude?" -> it_load_kw: 500, pue: 1.5, altitude_ft: 6000
Input Schema
| Name | Required | Description | Default |
|---|---|---|---|
| pue | Yes | Power Usage Effectiveness — ratio of total facility power to IT power (typically 1.2-1.8) | |
| it_load_kw | Yes | Total IT electrical load in kilowatts (kW) | |
| altitude_ft | No | Site altitude in feet above sea level (equipment derating applied above 5,000 ft) | |
| safety_factor | No | Design safety factor applied to cooling capacity (default: 1.15 = 15% margin) | |
| lighting_area_sqft | No | White space floor area in square feet (for lighting/misc heat gain calculation) | |
| design_outdoor_temp_f | No | Design outdoor dry-bulb temperature in Fahrenheit (ASHRAE 0.4% cooling design day) | |
| include_humidification | No | Whether to include humidification load in calculation (adds ~7%) |