Precise cooling with very narrow temperature tolerances and the smallest possible carbon footprint: for many planners and operators, this describes their perfect refrigeration supply. ENGIE Refrigeration meets these requirements in a sustainable manner with its AMONUM chiller. This model uses the natural refrigerant ammonia and is thus extremely eco-friendly.
Efficient, compact, sustainable – these three properties characterise the AMONUM chillers. The series has been part of the ENGIE Refrigeration portfolio since 2014 and meets the stringent requirements of the ‘zero carbon’ strategy of the French ENGIE Group, the parent company of the refrigeration and heating specialist. As the name ‘AMONUM’ reveals, the chiller uses the natural refrigerant ammonia. This offers a range of benefits for all planners and operating companies seeking an especially eco-friendly refrigeration supply.
Ammonia, technical name NH3 or R717, is a cost-effective and readily available natural product. It has been used as a refrigerant for more than 120 years and is now the most commonly used natural refrigerant worldwide. Its specific characteristics are convincing: ammonia has excellent thermodynamic properties and an exceedingly favourable pressure situation. It also has a very high volumetric refrigerating capacity, so the same refrigeration capacity can be achieved with a smaller refrigerant volume flow conveyed by the compressor. This makes it possible to achieve a higher energy efficiency ratio (EER) than with alternative refrigerants. Last but not least, ammonia has no harmful effects on the ozone layer. Both its ozone depletion potential (ODP) and its global warming potential (GWP) are zero. In spite of all these advantages, there are some reservations regarding the use of ammonia. It is flammable when mixed with air in specific mixing ratios and is classified as Water Hazard Class 2. Companies operating ammonia refrigeration systems must therefore meet strict legal requirements and perform regular safety inspections, among other things. With these measures, the risks involved in the use of ammonia as a refrigerant are however easy to manage.
Water-cooled AMONUM chillers utilise the special benefits of ammonia as a refrigerant and also feature a sophisticated and long-established safety concept. It is possible, for example, to install a gas warning device inside the machine housing to detect even tiny leaks immediately. In addition, leaks are clearly perceptible even at low concentrations due to the characteristically biting smell of ammonia, and are thus easy to locate. Furthermore, the AMONUM also has a very high power density due to its compact design and can – as it requires less than ten kilograms of refrigerant – be placed in any non-public machine room. It is available in four performance classes from 50 to 200 kilowatts. All models are equipped with an open speed-controlled reciprocating compressor, an innovative evaporation system and a SIMATIC S7 controller for energy-optimised control of the entire periphery. AMONUM chillers thus offer especially good efficiency values under full and partial load and low operating costs – a real added value for the operating company.
As AMONUM chillers enable a very wide range of operating temperatures, they are suitable for numerous applications: from brine applications to -15 degrees Celsius to process cooling and air conditioning up to +15 degrees Celsius. In addition, heat recovery is possible for a condensation temperature of up to 53 degrees Celsius. Commercial and industrial ENGIE customers around the world rely on the highly functional refrigeration system, especially in the chemicals industry and in the food processing and storage sector. They benefit from eco-friendly refrigeration for their processes, which creates no carbon emissions thanks to the use of ammonia as a refrigerant and thus represents a milestone on the path towards climate neutrality.
The dairy industry is both energy-intensive and particularly demanding when it comes to cooling and heating. A solution that convinces with quality, efficiency and climate friendliness is therefore essential. How ENGIE Refrigeration manages this task for a specialist in drying and evaporating technology with a thermeco2 high-temperature heat pump and ensures sustainable dairy production in the process, Frank Glaser, Key Account Manager Industrial & Commercial Heating, reveals in an interview.
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.
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.
Digitisation is one of the economic megatrends of our age. Most businesses are reliant on smooth-running information technology (IT) – and thus on data centres, the IT all-rounder. But how can a sensitive digital infrastructure be operated as safely, efficiently and sustainably as possible? With its QUANTUM chiller and SPECTRUM heat pump, ENGIE Refrigeration now takes care of ten local data centres belonging to a German provider – and is breaking new ground for the IT industry in the process.
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.