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.
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.
What does the heat supply of the future look like? An interdisciplinary team at ENGIE Refrigeration has been focussing on this question for the past few months. The result: our new SPECTRUM Water heat pump, which has been available worldwide since 28 March 2022. Our employees explain the product characteristics and special benefits of this model in our ‘on point.’ magazine.
The redesigned QUANTUM Water from ENGIE Refrigeration has been available for about half a year. How is the model being received on the international market? And which properties do customers appreciate most? Our expert Daniel Keller, head of product and application management at ENGIE Refrigeration, shares his initial conclusions and talks about plans for the coming months.
Beethoven could never have imagined this: artificial intelligence (AI) has now completed his ‘unfinished’ 10th symphony. AI has already been used to complete compositions by Gustav Mahler and Franz Schubert. Applications involving artificial intelligence are finding their way into more and more parts of our lives – and providing entirely new opportunities. ENGIE Refrigeration is ready for the future: we asked our expert Jörn Stiegelmeier, head of technology and development, about the smart refrigeration and heating solutions our users can look forward to.
Airports are the hubs of our globalised world. Refrigeration technology plays a key role in ensuring that processes run smoothly and visitors feel comfortable in the terminal buildings. In this interview our expert Bernd Heine, Head of Sales Support, explains what the aviation industry requires from chillers – and the sophisticated solutions that ENGIE Refrigeration provides for this business sector. In addition, he presents the best practices we have developed in our many years of experience.
From producing companies and data centres to hospitals and hotels: wherever companies use refrigeration on an industrial scale, they produce valuable waste heat. Anyone who utilises this waste heat saves energy, lowers operating costs and protects the environment – a real win-win-win situation. With its smart chillers with heat recovery, ENGIE Refrigeration assists businesses on their path to greater efficiency and sustainability.
If the required refrigeration capacity is not (or no longer) adequate during major events, winter amusements or seasonal peak demand, or if an important system fails, solutions must be produced quickly. However, permanent expansions to cover temporary refrigeration requirements involve additional investment costs and are only very rarely worthwhile.
The digitalisation of the economy is advancing in leaps and bounds, and it has not steered clear of the refrigeration sector. In this interview, our expert Senad Handanovic, head of MSR at ENGIE Refrigeration, explains the digital features of the redesigned QUANTUM Water – and the added value that these chillers therefore offer their users.