Data Centre Cooling Systems and Solutions

Each cooling solution has been specifically selected to meet the client’s requirements while taking into account the constraints of the project in question. Space, budget and outside conditions are all factors which help us decide which data centre cooling solution is correct for a particular project.

Over the years we have designed and installed the following bespoke data centre cooling systems :

  • Direct fresh air free cooling – simply using filtered fresh air to cool a data centre
  • Indirect fresh air free cooling – using outside air to cool a data centre via an air to air heat exchanger
  • Chilled water free cooling systems – water based heat transfer with dry air coolers and chillers
  • Heat sink heat transfer – water based cooling using and external body of water, such as a pond, to provide compressor free cooling
  • Water cooled direct expansion systems – using a free cooling water circuit in conjunction with a direct expansion gas system to provide free cooling when ambient conditions allow
  • Traditional direct expansion – generally used in smaller facilities with IT loads below 70kW
  • Hybrid systems – combining direct expansion and fresh air free cooling to increase operation efficiency
  • Evaporative cooling
  • Direct chip cooling
  • Absorption cooling using waste heat

The heat rejection systems above can be deployed in various ways. We have experience of all that are relevant to data centres including; central plant air and water/glycol systems, Computer Room Air Conditioning (CRAC) units, direct cabinet cooling, in-row cooling, chilled beam ceilings and combinations of these.

Where mechanical cooling is required we have experience of DX cooling, compressor driven chillers (the most common type), absorption chillers (less common and generally only used on very large projects) and gas fired chillers (as opposed to using electricity – can free up power for your IT load).

Whatever the constraints of your project our Data Centre Design Teams will find a solution that works best for you. Since 2010 Convergent Technology  data centre cooling solutions have been recognised 6 times for industry leading innovation in energy efficiency and resilience on Saudi Arabia.

If you are embarking on a new project, or have a legacy data centre and want to get the best performance and efficiency out of your cooling systems, speak to us.

 More information about data centre cooling systems?

Irrespective of the size of your data centre it will require some form of cooling. This is because, along with performing computing tasks, IT equipment produces heat. It is important to remove waste heat from the data centre so IT equipment operates within an appropriate environment.

Legacy IT equipment operates within a tighter environmental window than newer equipment. Over recent years this operational window has widened from the traditional 20°C +/- 1°C and 50% relative humidity (RH) +/- 5% to today’s ASHRAE  allowable range of 22°C +/- 4°C and 50% +/- 30% RH.

Although this widening of data centre temperature set points may seem quite small it has a significant impact on the energy consumption of the systems that provide cooling. As a very simple guide, for every degree Celcius you raise you server air-on temperature you are likely to see an approximate rise in efficiency of 2%.

This means if your data centre cooling system is currently maintaining an 18°C supply air temperature and you are able to raise this to 23°C you will realise a circa 10% reduction in your data centre’s cooling costs.

The range in relative humidity (RH) has increased and also has a huge effect on energy consumption. By adopting the new ASHRAE allowable RH levels you may reduce your humidification energy consumption by 80%. Depending on the method of humidification used in your facility this could equate to a sizable financial saving.

Getting the right cooling solution in any facility is vital. Working with a company that has extensive experience designing and installing a broad range of solutions ensures resilience, efficiency and cost effectiveness.

For more information on data centre cooling and air conditioning systems visit equipment supply.