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Viewing category 'Cooling Systems'

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The ideal temperature for a server room is 18 to 24⁰C. This ambient temperature range is ideal to ensure your servers, storage devices, networking switches, routers, and uninterruptible power supplies can perform safely within their operating ranges. It is also a good range to aim for, for those working inside the computer or server room.

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Very often IT closets, computer and server rooms are overlooked when it comes to cooling and environment monitoring and yet they can experience rapid heat build-up. One of the biggest issues is deciding how to calculate the actual cooling requirements and then how best to deliver this into the relatively small and confined spaces.

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The range of cooling solutions available for server room and datacentre operators continues to evolve and can be split into two types: active cooling (forced convection) and passive cooling (natural connection). Innovation is driven by how to affect the most energy efficient and environmentally friendly cooling systems as the actual power demands for IT servers continue to increase.

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Whether your organisation runs a small server closest or large server room or onsite datacentre, ambient and temperature control is critically important to prevent system downtime.

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Whether you are running an in-house enterprise server room or colocation datacentre, critical power and cooling are key environmental factors that must be managed to prevent IT system operating errors, erroneous alarm conditions, data processing errors, system malfunctions and unexpected shutdowns.

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If you do not have a purpose-built server room or data centre it can be difficult to control room temperatures and humidity. This time of year, our projects team are often asked to assist sites with small server rooms or computer rooms, whose temperatures will be expected to rise over the summer period and even more so during those occasional ‘heatwaves’ we have in the UK. So why is server room cooling and temperature control so important?

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The datacentre industry is under immense pressure to reduce its energy usage and achieve a smaller carbon footprint. One of the biggest users of non-compute energy are the cooling solutions used within hyperscale down to medium and small-sized datacentres.

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Traditional air conditioners use a refrigerant gas and this type of closed-loop air-based cooling system is perfectly adequate for most for server rooms and small datacentres. However, as server rack power densities continue to increase due to machine learning applications, larger datacentres and hyperscale operators are turning to liquid cooling.

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From 2015, it became illegal to use Hydrochlorofluorocarbons (HCFCs), including the ozone-depleting refrigerant gas R22, in refrigeration, heat pump and air conditioning (AC) systems. R22 was commonly used in cooling systems pre-dating 2004 and its ban has had a major effect on air-conditioning costs.

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When it comes to designing server room air conditioning systems the ‘one-size-fits-all’ approach just doesn’t work. Every building and room is different and will have its own thermodynamic and physical properties, usage and demands.

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There are several ways to manage heat within a datacentre, computer or server room, and improve operational efficiency. Some are relatively easy and straightforward, and others require a little more planning and capital investment. Collectively, they can not only help improve operational efficiency and save costs but can help to extend the life of the assets and reduce their service costs.

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The world is not getting any cooler and in the data centre industry critical cooling is becoming one of the prime areas for energy saving. Unlike the uninterruptible power supplies used within a critical power path, which are already approaching their maximum available energy efficiency (>97% in on-line mode) critical cooling has a long way to go.

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There is a very good chance that we will always remember the UK summer of 2018. Week-long heatwaves and an average temperature of 15.8˚C saw this summer narrowly beat the previous record temperature levels of 1976. The summer months of June and July were also notably dry, although August seemed to return to more average conditions.

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The statement that our world is becoming more inter-connected is an understatement when you consider ‘The Internet of Things’ (IoT). In the world of HVAC and cooling systems it is easy to see that air conditioning systems are becoming more intelligent with a greater range of remote communications options which should lead to improvements in operating costs and overall energy efficiency.

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Edge computing coupled with 5G mobile wireless technology promises to be the next stage in the 5th industrial revolution and to provide the bridge to many new services, some of which are still ideas in their nascent stage of ‘if I had an App for this…’

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Heat is a form of ‘waste’ energy that results from the way the CPUs (central processing units) within a typical IT server work. In a server room or data centre environment, managing ‘heat’ and keeping server racks cool is as critical an issue as ensuring the servers are protected from mains power supply failures. Excessive heat can age components and can lead to early system failures, erratic system operation and presents a potential fire risk both within a server cabinet and its local environment.

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With the UK experiencing one of the hottest summers since 1976 many server room air conditioners and datacentre cooling systems are facing extreme workloads. The issue is not the ambient temperature itself but the length of time that the higher than average temperatures have been around. For future upgrades and new system installations it may well become the norm to have to build in a ‘heatwave’ factor to prevent disruption and potential system failures. So how do you size an air conditioner for a server room or datacentre?

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Despite what many of us may think in the UK on this cold and snowy December day, there is one thing we can guarantee about our climate and the global climate in general. It is not getting any cooler and the demand for air conditioning systems continues to grow worldwide. This growth is also fueled not just by climate change but the growing tendency for IT based operations (server rooms and datacentres) and the general growth of industry and commercialisation across our planet. For many people, air conditioning could be considered a utility-type service without which they simply cannot function.