No doubt, these rising chip and rack densities are a key driver for liquid cooling. Energy consumption of data centers represents a growing percentage of our global energy. This has prompted regulations and corporate initiatives requiring power usage effectiveness (PUE) and overall energy consumption reductions. Next to the IT systems themselves, cooling system energy is the biggest energy consumer in data centers. Liquid cooling has been proven as a more efficient cooling approach than conventional air cooling, in part because of a significant reduction in IT fan energy, ranging from 4-15 percent.
Dell on Thursday outlined new data center liquid cooling technology custom built for eBay. The technology, created by Dell's Extreme Scale Infrastructure (ESI) unit, is designed for hyperscale data centers and rack infrastructure. After the eBay collaboration, Dell has outlined the proof of concept and called it Triton. In a nutshell, Dell made liquid cooling more efficient by eliminating liquid to liquid heat exchangers, pumping systems and cooling loops. Dell brought facility water into each server sled to cool CPUs.
Flagship phones in 2018 can easily handle graphically demanding games, but many of them run hot or simply can't sustain their performance after several minutes of play. The Galaxy Note 9 has a feature designed to keep this flagship cool while delivering consistent speed: Samsung put a water-carbon cooling system in the device to keep it from breaking a sweat while you're in the middle of an extended Fortnite session. The advanced carbon-water cooling system, combined with a heat sink that's three times larger than the one inside the Note 8, helps with heat dissipation. Samsung says those improvements can prevent overheating by 21 percent, but the company is emphasizing performance over temperatures. We decided to put the Note 9's cooling to the test, and the results are mixed.
Liquid cooling in the data center has typically been reserved for high-performance computing, but Lenovo is making a bet--via a set of technologies called Neptune--that it'll go mainstream. Neptune represents Lenovo's approach to liquid cooling and include a variety of approaches. The techniques include using Rear Door Heat Exchangers, Direct to Node liquid cooling as well as hybrid cooling that mixes air and liquid. Scott Tease, executive director of Lenovo's HPC and AI units, said the company has worked on liquid cool systems for supercomputers for years and is now on its fourth generation of technologies. As TPUs, GPUs are added to increasingly dense and converged racks, it's getting harder to cool systems used for analytics and artificial intelligence.
The British summer is a cruel mistress. It's either dank, grey and raining, or so hot you practically melt on the way to work. An umbrella takes care of the former, but it's difficult to stay cool in the heat. When a fan just doesn't cut it, or simply isn't practical, here are some of the best gadgets to keep the sweat at bay during work, rest and play. Evaporative cooling systems have been around for a while, and are a decent alternative to air conditioning simply because they don't need any special installation or pipes to get rid of the heat.