In all kind of data centers (enterprise, hyperscale or HPC data centers) servers and other IT equipment (storage, network) creates thermal energy that needs to be removed by a cooling system. Cold air, e.g. at 20 °C (68 °F), is supplied from the cooling system to the server inlet. At a server exit temperature of 35 °C (95 °F) the server temperature difference is 15 °C (27 °F).
Server, manufactured by HP, IBM, Dell and others are designed in a similar way. Most of them are equipped on the rear side with fans that pulls the cold air into and through the server and pushes the warm air out of the server on the rear side. The air is heated up by the thermal energy emitted from the components inside the server. This server temperature difference, the difference between the cold air at the server inlet and the warm air at the server exit is an important parameter for a proper design of the cooling system but in many cases difficult to determine.
The fans inside the server are usually speed controlled depending on the server inlet temperature and the utilization of the server to run the server efficient and to avoid overheating. This makes the determination of the server temperature difference even more difficult.
It is challenging to find proper information for the server temperature difference in the product documentation of the server manufacturer.
This data can be found for the IBM Bladecenter S (8886/7779):
The Bladecenter requires an air circulation of 5,66 m³/minute up to 12,74 m³/minute. The thermal load ranges between 400 Watt and 3.500 Watt. This results in air temperature differences between 4 °C (7,2 °F) and 14°C (25,2 °F). At a supply air temperature of 20 °C (68 °F) the server exit temperature is between 24 °C (75,2 °F) and 34°C (93,2 °F).
Server temperature differences in today’s real live data centers
It has been seen that the data centers form a high temperature because of its equipment that generates heat because of its wider use. Usually, the heat can be diminished, if any types of cooling system is used. It has come into sight that the service providers of TechXact have got much admiration among innumerable people. I have acquired some satisfactory outcome by the stunning services of TechXact, By the way, thanks for the conversations.
On-Demand Cooling for Hot Aisle Vendors are starting to offer equipment that can address conditions in the hot aisle. Tate, which makes flooring tiles for raised-floor environments, recently introduced the SmartAire T, an in-floor damper that can provide on-demand cooling in hot aisles. When maintenance is required, cool air can be briefly redirected into the hot aisle to make the area tolerable for staff.Before entering the hot aisle, a technician uses a supply trigger, typically a switch located outside the hot aisle, to activate the SmartAire T units. Cool air then enters the hot aisle until a comfortable temperature is established. SmartAire T units maintain this temperature until the technician completes the assigned work and deactivates the units.
Server temperature differences in today’s real live data centers
