Research on room air temperature rise caused by cooling failure in data centers

Summarizes the current research results on room air temperature rise caused by cooling failure in data centers, derives some basic conclusions, and obtains the description equations of heat transfer model for data centers. Taking a 100 m2 data center as an example, establishes a 3D model and performs CFD simulation using 6SigmaDC software, and simulates the temperature rise after cooling failure. The basic conclusions are as follows: in the data center, the duration of cooling failure must be compatible with power backup response time; otherwise a special cool storage device should be designed as backup cooling source (generally 15 minutes). When power density is less than 10 kW per rack, the relationship of temperature rising rate and rack power density is basically linear after cooling failure. When the average inlet air temperature is lower than 80 ℃, the temperature rising rate caused by cooling failure is approximate constant.