Overview
This lecture discusses the environmental controls in data centers, including power usage, humidity and temperature management, and fire suppression methods.
Data Center Power Usage
- Data centers consume about 2% of all US power.
- Significant power is used to control environmental factors such as temperature and humidity.
Humidity Control in Data Centers
- Managing humidity is crucial: high humidity causes condensation, low humidity causes static discharge.
- Ideal humidity levels for data centers are around 40-60% to balance condensation and static risks.
- These levels may vary slightly depending on geographic location.
Temperature Control in Data Centers
- Equipment generates significant heat, requiring constant cooling.
- Optimal temperature range is 64–81°F.
- HVAC (Heating, Ventilation, and Air Conditioning) systems maintain temperature and humidity.
- External factors like outdoor temperature and system load affect cooling needs.
- Sensors throughout the data center help maintain consistent conditions.
Fire Suppression in Data Centers
- Standard water-based fire suppression is not safe for data centers due to electrical equipment.
- Inert gases or chemical agents are used to suppress fires or remove oxygen.
- Fire suppression systems are often integrated with HVAC to shut down airflow and limit oxygen during a fire.
Key Terms & Definitions
- HVAC (Heating, Ventilation, and Air Conditioning) — System used to control temperature and humidity in data centers.
- Condensation — Water formation due to high humidity, which is dangerous for equipment.
- Static Discharge — Release of static electricity, a risk when humidity is too low.
- Inert Gas — Non-reactive gas used to suppress fires by displacing oxygen.
Action Items / Next Steps
- Review recommended readings on data center environmental controls and safety protocols.