Several theories and key terms are fundamental to understanding energy systems in data centers: Thermodynamics: The study of heat transfer and energy conversion, crucial for designing efficient cooling systems.
Why do we need thermal energy storage in data center?
Due to specific operation conditions, high security and high cooling load is required in data center. To achieve energy saving, cost saving and high security, novel cooling systems integrated with thermal energy storage (TES) technologies have been proposed.
Data center consumes a great amount of energy and accounts for an increasing proportion of global energy demand. Low efficiency of cooling systems leads to a cooling cost at about 40% of the total energy consumption of a data center. Due to specific operation conditions, high security and high cooling load is required in data center.
What is data center waste heat recovery structure?
A data center waste heat recovery structure that integrated energy storage batteries (ESB) and waste heat-driven cooling/power generation system was proposed in this study for energy saving and operating cost reduction.
What type of energy storage is used in data centers?
What widely used in data centers is physical energy storage. Physical energy storage is further divided into sensible thermal energy storage (STES) and latent thermal energy storage (LTES). The commercial viability of LTES is limited by material characteristics and its initial cost, as opposed to STES that is mostly employed in data center.
Are thermochemical energy storage materials available in data centers?
Currently, various thermochemical energy storage materials are at development stage and such a system is not yet commercially available. What widely used in data centers is physical energy storage. Physical energy storage is further divided into sensible thermal energy storage (STES) and latent thermal energy storage (LTES).
Solar energy and high quality heat of the data center was stored in TES to drive the absorption refrigerator, which provided cold energy to the data center. TES was integrated with the condenser to be cooled by the ambient air and provide cold energy to condenser. The PUE was decreased to 1.51. The energy saving rate reached 28%.