How Liquid Cooling Addresses Server Room Issues

Liquid cooling is redefining data center efficiency... Delivering a powerful combination of sustainability and cost savings. As computing demands increase, traditional air cooling is falling behind. Data centers are turning to liquid cooling to reduce energy use, cut costs, and support high-performance workloads. Operators are considering direct-to-chip cooling, which circulates liquid over heat-generating components, and immersion cooling, where servers are fully submerged in a dielectric fluid for maximum efficiency. Developed markets, like the U.S. and Europe, are adopting liquid cooling to support AI-driven workloads and reduce carbon footprints in large-scale facilities. Meanwhile, emerging markets in Southeast Asia and Latin America are leveraging liquid cooling to manage high-density computing in regions with hotter climates and less reliable power grids, ensuring operational stability and efficiency. Greater Energy Efficiency Liquid cooling reduces total data center power consumption by 10.2%, with facility-wide savings up to 18.1%. It also uses 90% less energy than air conditioning, improving heat transfer and maintaining stable operating temperatures. Sustainability Gains Lower PUE (Power Usage Effectiveness) means less wasted energy, while reduced electricity use cuts carbon emissions. Closed-loop systems also minimize water consumption, making liquid cooling a more sustainable option. Cost and Performance Advantages Efficient temperature management prevents thermal throttling, optimizing CPU and GPU performance. Higher-density computing lowers construction costs by 15-30%, while cooling energy savings of up to 50% reduce long-term operational expenses. The Future of Cooling As #AI and cloud workloads grow, liquid cooling is becoming a competitive advantage. Early adopters will benefit from lower costs, improved efficiency, and a more sustainable infrastructure. #datacenters

🌍 Microsoft’s new data center design wastes zero water - featuring a closed liquid cooling loop. I saw something similar in Oak Ridge National Laboratory closed liquid cooling for the Summit SuperComputer. Anyway, here’s why this matters: Traditionally, AI operations in data centers consume enormous amounts of energy and water. For every 20–50 ChatGPT queries, nearly a bottle of fresh water is evaporated during cooling: https://lnkd.in/expaA8pc Microsoft’s new design eliminates this problem. Here’s how it works: • Traditional Cooling: Most data centers are air-cooled. Heat from servers is removed by cooling towers, which use water that partially evaporates into the air during cooling. •Microsoft’s Liquid Cooling: Heat from server chips is transferred to a closed-loop water system via direct-to-chip liquid cooling. The heated water is carried to a chiller, where a second refrigerant loop removes the heat. The water stays in the system, eliminating evaporation entirely. What Made This Possible: 1️⃣ Chips were redesigned to operate at higher temperatures. 2️⃣ Direct-to-chip liquid cooling systems were developed to safely manage the process. 3️⃣ AI growth created a critical demand for more efficient cooling technologies. To learn more about Microsoft data center design, check out: https://lnkd.in/e2vNanX7 #watercooling #ai #datacenter #cooling #water #energy #hvac #automation #builtenvironment #thermalmanagment

AWS Builds Custom Liquid Cooling System for Data Centers Amazon Web Services (AWS) is sharing details of a new liquid cooling system to support high-density AI infrastructure in its data centers, including custom designs for a coolant distribution unit and an engineered fluid. “We've crossed a threshold where it becomes more economical to use liquid cooling to extract the heat,” said Dave Klusas, AWS’s senior manager of data center cooling systems, in a blog post. The AWS team considered multiple vendor liquid cooling solutions, but found none met its needs and began designing a completely custom system, which was delivered in 11 months, the company said. The direct-to-chip solution uses a cold plate placed directly on top of the chip. The coolant, a fluid specifically engineered by AWS, runs in tubes through the sealed cold plate, absorbing the heat and carrying it out of the server rack to a heat rejection system, and then back to the cold plates. It’s a closed loop system, meaning the liquid continuously recirculates without increasing the data center’s water consumption. AWS also developed a custom coolant distribution unit, which it said is more powerful and more efficient than its off-the-shelf competitors. “We invented that specifically for our needs,” Klusas says. “By focusing specifically on our problem, we were able to optimize for lower cost, greater efficiency, and higher capacity.” Klusas said the liquid is typically at “hot tub” temperatures for improved efficiency. AWS has shared details of its process, including photos: https://lnkd.in/e-D4HvcK

🌡️ Revolutionizing Data Center Cooling: The Power of Fluorinated Liquids!** 🌊✨ Discover how cutting-edge immersion cooling technology is transforming the way we manage heat in high-performance computing. With fluorinated liquids leading the charge, we’re not just enhancing efficiency—we’re paving the way for a sustainable future in tech! 🔧💚 Immersion cooling is an advanced cooling technique used primarily in data centers and high-performance computing environments. This method involves submerging electronic components, such as servers and other hardware, directly into a dielectric (non-conductive) liquid coolant. How Immersion Cooling Works The process of immersion cooling can be broken down into three main steps: 1. Submersion: Hardware components are fully submerged in a dielectric coolant, which is designed to avoid electrical interference. Fans and power supplies must be removed before submersion. 2. Heat Absorption: The liquid coolant, which has a higher thermal conductivity than air, absorbs the heat generated by the electronic components. 3. Heat Dissipation: The heated liquid is circulated to a heat exchanger where the heat is transferred away from the coolant, allowing it to be recirculated back to the hardware. Types of Immersion Cooling There are two main approaches to immersion cooling: 1. Single-Phase Immersion Cooling:    - The coolant remains in liquid form throughout the process.   - The liquid is pumped to a heat exchanger where heat is transferred to a cool water circuit.   - Cooling baths are typically open-topped due to low evaporation risk. 2. Two-Phase Immersion Cooling:   - Uses a dielectric fluid with a low boiling point (around 56°C).   - The heat causes the liquid to boil and change to gas.   - The gas rises, meets a condenser, and 'rains' back into the pool, cooling the working fluid again.   - Requires sealed baths to prevent gas escape. Benefits of Immersion Cooling Immersion cooling offers several advantages over traditional air cooling methods: - Energy Efficiency: Can reduce Power Usage Effectiveness (PUE) to below 1.1, compared to the global average of 1.55. - Space Saving: Allows for higher computing density in a smaller space. - Noise Reduction: Eliminates the need for fans, resulting in quieter operation. - Hardware Longevity: Maintains consistent temperatures, reducing thermal stress on components. - Sustainability: Can reduce carbon emissions by up to 39% and water consumption by up to 91%. Coolants Used The dielectric fluids used in immersion cooling fall into two categories: 1. Oils (synthetic, mineral, bio) 2. Engineered fluids (e.g., 3M's Novec or Fluorinert lines) Immersion cooling represents a significant advancement in data center cooling technology, offering improved efficiency, sustainability, and performance compared to traditional air cooling methods. What do you think? #DataCenter #CoolingTechnology #Sustainability #Innovation #3M #Novec #ai Video courtesy of MechMarvelTV