LIQUID COOLED SERVER COMPONENTS PUT TO THE TEST
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LIQUID COOLED SERVER COMPONENTS PUT TO THE TEST Test stands for the validation of colocation cooling systems Technical specifications: Pressure pulsation test with flow control 0.2 bar – 20 bar (rel.) at 30 1/min incl. hydraulic system Flow of up to 30 L/min PC incl. LabView-Software Test media: Water Glycol, PG25, ... Test Frequency up to 2 Hz Test multiple DUTs simultaneously USB-Port or integration into Network Infrastructure for Data Transfer Flexible design Flexible Fluid and Environmental Temperature: -30 °C to 110 °C Pressure Cycle Test Bench The efficiency and reliability of server rack (colocation) cooling are important factors for managing data center operations. These cooling systems are necessary for maintaining optimal server performance and ensuring the longevity of hardware components. To guarantee leak-free reliability of cooling solutions, media-carrying components within these systems are tested with specific testing solutions. Test stands from the German company Poppe + Potthoff Maschinenbau (PPM) enable the identification of potential system and component weaknesses while enabling the optimization of cooling components. Forecasts indicate that by 2026, data centers worldwide will use more than 800 terawatt-hours of energy, over twice the consumption recorded in 2022. Given this sharp increase in energy demand, methods for liquid cooling are becoming increasingly critical as they can save substantial energy costs due to their greater efficiency compared to air cooling. Studies show that liquid cooling systems can be up to 40 % more efficient, significantly reducing the energy footprint of data centers. Poppe + Potthoff Maschinenbau GmbH E-mail: salesppm@poppe-potthoff.com www.poppe-potthoff-maschinenbau.com One particular solution for managing the thermal output of server racks is direct liquid cooling (DLC) systems. In DLC systems a liquid coolant is in direct contact with various heat-generating components within the server rack, which allows for an effective heat transfer. This method is especially beneficial in high-density data centers where the temperatures can be too high for other cooling methods, such as air cooling. As liquids have a higher heat capacity than air, DLC systems can significantly reduce the overall energy consumption required for cooling. In addition, DLC systems can be designed compactly, which is essential in server housing. They also contribute to a quieter operational environment by reducing the number of required fans. Another method for server thermal management is cold plate cooling. With this method, cold plates are in direct contact with heat-producing components such as CPUs or GPUs. A cooling fluid flows through channels within these plates and absorbs heat from the server components. Cold plate cooling allows for precise cooling while maintaining uniform temperature distribution across the server. Like DLC, cold plate cooling offers advantages in densely packed data centers. Additionally, it enhances the efficiency of heat extraction, which leads to improved server reliability while also enabling more compact server designs

POPPE + POTTHOFF MASCHINENBAU GMBH Validation of DLC- and cold plate systems for server racks Specialized test stands from Poppe + Potthoff Maschinenbau are used to verify the durability and quality of various media-carrying components, including cold plates, manifolds, pipes, connectors, and valves. The testing solutions of PPM allow for burst testing, leak testing, and dynamic pressure cycle testing for DLC systems, as well as leak testing and pressure pulsation testing for cold plates. In a typical test for server cooling components, the component is inserted into a temperature-regulated...