The Brief discuss primarily two aspects of air flow management in raised floor data centers. Firstly, cooling air delivery through perforated tiles will be examined and influence of the tile geometry on flow field development and hot air entrainment above perforated tiles will be discussed. Secondly, the use of cold aisle containment to physically separate hot and cold regions, and minimize hot and cold air mixing will be presented. Both experimental investigations and computational efforts are discussed and development of computational fluid dynamics (CFD) based models for simulating air flow in data centers is included. In addition, metrology tools for facility scale air velocity and temperature measurement, and air flow rate measurement through perforated floor tiles and server racks are examined and the authors present thermodynamics-based models to gauge the effectiveness and importance of air flow management schemes in data centers.

Illustrates for the reader the importance of air flow management in raised floor data centers through thermodynamics based models Examines metrology tools for measurement air flow rate through perforated tiles and server racks, and large scale velocity and temperature measurements Discusses cooling air flow delivery though perforated tiles, and using cold aisle containment to minimize cold and hot air mixing Presents CFD based models for air flow field prediction in data centers

Inhalt

1. Introduction.- 2. Metrology Tools.- 3. Cooling Air Delivery Through Perforated Tiles.- 4. Cold Aisle Containment.- 5. Other Air Delivery Schemes.