Data Centers

Data Centers

Significant power
savings with
adsorption cooling.

Data centers consume a lot of electricity, and the demand is rising: As of today, 3% of all electricity generated world-wide is used to drive data centers. Some research institutes forecast an increase in demand of more than 10% annually until 2020.

Besides the computing hardware, cooling is the largest power consumer in a data center. FAHRENHEIT adsorption chillers can yield enormous savings potential – particularly in data centers, because 100% of the computing power ends up becoming waste heat, and the machinery is running around the clock. This is just as applicable to server rooms in companies. Increasing IT demand increases the associated power consumption.

In general, FAHRENHEIT adsorption chillers can be used in two configurations for cooling computers (outlined below). Both have the added benefit of helping our environment by relying only on water as coolant, and by reducing CO2 in line with power consumption.

A. Using external heat as power source

Combined Heat and Power Plants (CHP) are particularly interesting as heat sources. Alternatively, solar heat or district heating can also be used.
You benefit from a significant reduction in electricity consumption &ndash& and from running a very environmentally friendly data center. This becomes a viable solution from as little as 5kW in cooling power.

B. Using CPUs as heat source

The waste heat generated by the computing cores themselves can be used to generate cold for peripheral devices such as hard drives, network switches, or power supplies. This saves in overall power consumption and TCO compared to free cooling of the CPUs. This constellation is particularly interesting in the case of fluid cooled CPUs.


Cooling servers with their own waste heat at Leibniz Data Center (LRZ) in Garching/Germany.

The Leibniz Computing Center (LRZ) north of Munich is the central IT infrastructure provider to all universities in Munich and operates one of the fastest computers in the world, SuperMUC. It has been conducting research on energy-efficient cooling solutions for high performance computers. The objective is to optimally re-use the waste heat generated by the servers. Using FAHRENHEIT adsorption chillers the waste heat generated by SuperMUC is used to cool its own components. This cooling solution unlocks an enormous savings potential saving hundreds of thousands of Euros worth of electricity each year. At the same time, it reinforces LRZ’s standing as a progressive and environmentally conscious computing center.

Server cooling setup