From telecommunications and research to finance and traffic – in our digital age, data centres are increasingly shaping our economy and society, and are thus part of our critical infrastructure. Reliability, flexibility, availability and efficiency requirements are correspondingly demanding. In order to fulfil these requirements as well as possible, operating companies must tackle several obstacles. One of the most challenging but also key disciplines is the continuous cooling supply for server rooms, which is also being continuously optimised. Even minor fluctuations in the required room temperature affect the reliability of IT devices and thus the availability of system-relevant data. Reliable chillers and heat pumps are essential in preventing such fluctuations. ENGIE Refrigeration is currently demonstrating this fact, in an extensive project involving ten data centres in Germany’s metropolitan areas. They belong to an edge data centre platform set up by a German provider, who has chosen to localise their data business and provide the relevant computing power to end users over the shortest possible distance – a novel approach for Germany. For this progressive and small-scale concept to work, all the components of the cooling and heating supply must harmonise perfectly with one another.
ENGIE Refrigeration masters this challenge with concentrated machine power: nine air-cooled QUANTUM Air chillers with integrated free cooling and a cooling capacity of 6.75 megawatts, seven SPECTRUM Water heat pumps in a container with a heating capacity of 5.25 megawatts, and three QUANTUM Air chillers with green heat recovery (GHR) with a cooling capacity of 2.25 megawatts ensure the smooth operation and optimal cooling and heating supply of the IT buildings. In the process, each model plays to its strengths: the air-cooled QUANTUM chiller with optional heat recovery and 2.5 megawatts (green heat recovery) brings the server rooms of each individual data centre to the optimum temperature and allows the waste heat generated by the cooling process to be utilised. Jürgen Martin, Key Account Manager for Data Centers at ENGIE Refrigeration, explains: ‘Thanks to our cooling and heating supply concept, our customers are in a clear win-win situation: by scaling down to smaller data centres and utilising the heat recovery technology of our chiller, the customer can now make the waste heat from each data centre available to individual local interested parties. This way, the generated energy is deployed in the best interests of society and the economy. Reusing the waste heat, which would otherwise simply be released into the environment, also allows the customer to reduce energy consumption by up to 60 per cent.’ With this value, ENGIE Refrigeration easily exceeds the current ecological requirements for the industry, which oblige operating companies to reduce their carbon emissions by around 30 per cent by 2025 on a voluntary basis – an important step towards climate neutrality.
In winter and during cool transition periods, the QUANTUM Air chiller with integrated free cooling module guarantees maximum energy efficiency. It really comes into its own as soon as the ambient temperature drops below the chilled water temperature – and goes perfectly with the process cooling required at the data centre. For its cooling supply, the developers of the QUANTUM chiller chose a non-glycol concept, a solution that is rarely used. Jürgen Martin explains: ‘The free cooling module runs on glycol, while the machine itself is operated with water. As a result, both areas are highly efficient, and the operating companies have lower energy costs in the long term.’ The models in the QUANTUM series provide an uninterruptible power supply (UPS) for data centres that is both climate-friendly and powerful. In the event of a power outage, the innovative fast-restart technology (FRS) ensures the full cooling supply in just three minutes. The customer can therefore be certain that all the highly sensitive devices and systems in the data centre receive timely cooling – so that data loss and failures due to overheating cannot occur.
Jürgen Martin explains: ‘Thanks to the unbeatable combination of our QUANTUM chiller and our SPECTRUM heat pump, our customer benefits in multiple ways: they can complete their concept for local data centres perfectly by adding an efficient cooling and heating supply. As well as saving running costs at the data centre, this also considerably reduces the customer’s carbon footprint. The customer can also be certain of absolute reliability, which secures the data supply for businesses and society in the metropolitan areas of Germany. In short, thanks to the reliable cooling and heating technology from ENGIE Refrigeration, our customer can fully exploit the potential offered by digitisation. They are ready for the future!
At ENGIE Refrigeration, we set promising standards for numerous industries not only with chillers but also with heat pumps. We are now communicating this more strongly to the outside world with our new corporate visual, which is both eye-catching and forward-looking.
The energy and heat transition are considered to be the central challenges of our time. The use of waste heat offers tangible opportunities for numerous industries in the transition to climate neutrality. With the QUANTUM chiller with optional heat recovery (Green Heat Recovery), ENGIE Refrigeration shows environmentally friendly and economic perspectives for the reuse of heat from refrigeration processes.
20 Jahre QUANTUM, 20 Jahre starke Leistung, hervorragende Betriebssicherheit und hohe Effizienz – der Geburtstag unserer Kältemaschine bietet den perfekten Anlass, um zwei Jahrzehnte der Vorzeigeserie Revue passieren zu lassen.
Due to their environmental impact, refrigeration systems and heat pumps have faced increased scrutiny from environmental organisations, governments and the public for some time. Debate has centred on the greenhouse effect of refrigerants, not least because of planned amendments to the F-Gas Regulation, which will make it more stringent. However, the climate relevance of chillers and heat pumps can only be properly assessed with the help of an ecological balance sheet that includes the entire greenhouse effect of the systems. One popular method of holistic ecological assessment is provided by the TEWI value.
The digital transformation is opening up a wealth of new opportunities for companies. Augmented reality (AR) in particular is providing innovative momentum to Industry 4.0 and making complex processes significantly more efficient. ENGIE Refrigeration has long recognised the potential of this technology for the refrigeration and heating industry and has been working together with the global AR/VR technology leader HOLO-LIGHT since 2017 to integrate AR applications into individual work areas. Jannick Hartmann, Senior Software Sales Manager at HOLO-LIGHT, and Jörn Stiegelmeier, Head of Technology and Development at ENGIE Refrigeration, talk about the benefits of augmented reality for both employees and customers.
There are many chillers, but SPECTRUM Water only exists once. The model is unique in its performance range – this is ensured by the sophisticated product features. What precise added value does this offer to users?
The heating transition starts in buildings. This means that cities and municipalities, with their large number of buildings, play a crucial role on the path to carbon neutrality. What’s the best way to structure the energy transition and heating transition as soon as possible and as successfully as possible? Large heat pumps such as the SPECTRUM Water and thermeco2 can make an important contribution to this endeavour
Heat pumps instead of gas! At a state-of-the-art real-estate complex near the French metropolitan region of Bordeaux, a climate-neutral future is in the air, assisted by a new SPECTRUM Water from ENGIE Refrigeration. In our interview with Roman Steddin, the product manager explains why our heat pump is exactly the right choice for this project.
Anyone who has been in hospital knows that pleasant temperatures assist recovery. A clinic in Bavaria now provides such temperatures with a QUANTUM Water chiller from ENGIE Refrigeration, ensuring that the clinic runs smoothly.
Food production is one of the most sensitive industries. In this sector, heating supply requirements are particularly exacting. What reliable solutions does ENGIE Refrigeration provide to meet these requirements? The expert Frank Glaser, a key account manager for industrial and commercial heating at ENGIE Refrigeration, explains using the Osatina Group as an example.