GREEN MATTERS
Keeping data centres fl uid
Simon Brady, product manager, liquid and high-density cooling at Vertiv, discusses the potential of liquid cooling.
T
he landscape of data centre cooling is undergoing rapid transformation, largely driven by the growing demand for high-performance computing (HPC)
in artifi cial intelligence (AI) and machine learning (ML) applications. Traditional air-cooling methods are proving inadequate in managing the increasing heat levels generated by the powerful chips, servers and racks deployed in modern data centres. Consequently, enterprises are exploring hybrid solutions that integrate both air and liquid cooling technologies.
The adoption of liquid cooling also presents a unique opportunity for data centre operators to align their thermal management strategies with broader sustainability goals - allowing them to capitalise on a range of environmental benefi ts that contribute to reducing the carbon footprint of data centre operations. By effi ciently dissipating heat and managing energy consumption, liquid cooling systems can help organisations to achieve reductions in power usage and associated carbon emissions. Additionally, the use of liquid cooling enables data centres to operate at
higher temperatures without compromising equipment performance, further enhancing energy effi ciency and lowering operating costs.
The implementation of liquid cooling systems also provides an opportunity to optimise water usage. Innovative cooling solutions, such as closed-loop systems that recirculate coolant without water loss, help conserve water resources and reduce the overall environmental footprint of data centre cooling operations. Liquid cooling also allows waste heat recovery, reutilizing heat to warm nearby offi ces, homes or farms to support the circular economy.
What are the challenges? While the benefi ts of liquid cooling are compelling, there are challenges to successful implementation. Its successful integration requires careful planning and coordination across various teams within the organisation, including IT, facility and power teams. Equally important is communication with external suppliers and service providers which helps to achieve a smooth implementation, addresses logistical challenges and mitigates disruptions. Another signifi cant challenge lies in ensuring that
existing infrastructure can support liquid cooling systems or identifying and addressing necessary upgrades. Budget constraints may limit the scope of the project, necessitating careful prioritisation and resource allocation. Managing potential risks, such as leaks or corrosion associated with liquid cooling, demands diligent attention - and implementing proper installation and maintenance protocols is essential to safeguard the integrity of the data centre environment.
In addition to technological safeguards, adherence to industry best practices plays a crucial role in maintaining operational integrity. Regular monitoring and maintenance activities, such as routine fl uid quality checks and equipment inspections, are essential for identifying and addressing any potential vulnerabilities or issues proactively. Regulatory
34 June 2024 •
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