Keeping servers at a temperature where they can run efficiently in the age of artificial intelligence is a challenge for many data center operators.

While the AI revolution has heralded the dawn of the liquid cooling era, older technologies remain vital to the operation of many data centers, and vendors are busy finding ways to innovate and commercialize ideas that have been doing the rounds for years.

In this supplement we explore:

• How nanofluids can improve cooling efficiency, even in legacy cooling systems
• A replacement for fans inside servers, to boost the efficiency and reliability of air-cooling
• Water harvesting technology that can cooling costs for data centers
• The importance of antifreeze in liquid cooling systems