Design of Data Center Cooling Systems
Brief Project Description
The project included comprehensive planning of a cooling system reconstruction for a data center. In the first phase, a feasibility study and conceptual design were prepared, analyzing existing conditions, future technological needs, and possible cooling concepts.
Based on the approved solution, detailed design documentation (PZI) was developed for reconstruction and implementation of a new central cooling infrastructure with high reliability and availability.
Challenge
The core challenge was ensuring extremely high system availability while accommodating increasing heat loads from new generations of high-density IT and telecommunications equipment.
The system had to operate continuously (24/7), allow maintenance without service interruption, and meet stringent redundancy and diversity requirements. Phased replacement of existing systems during continuous operation was also a major challenge.
Solution and Benefits
A new central cooling architecture was designed addressing availability, redundancy, and diversity. The system is designed with N+2 redundancy, ensuring very high reliability and operation during component failures or maintenance. This meets Tier III requirements according to Uptime Institute methodology (≈99.98% availability).
The central plant supplies chilled water to CRAH units in technical rooms, with free cooling included to improve energy efficiency. Modular design enables future scalability while meeting the highest reliability and safety requirements.
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