Best practice examples

R290 Natural Chiller for CO2 transcritical application in supermarkets The CO2 installations in transcritical application, significantly reduce their performance in the presence of high ambient temperatures, a typical situation of warmer European countries. Euroklimat offers its Propane powered chillers for this situation. Even in the specific case of transcritical CO2 installations, the performances can significantly improve by subcooling the gas after the “gas cooler”. Hence, Euroklimat’s proposal to use special chillers purposely designed for this application. In particular, the use of a natural refrigerant such as Propane (R290 is a hydrocarbon present in nature and not a chemical synthesis) fits in well with the use of another natural refrigerant such as CO2 giving the whole system a high “ecological” content as well as a secure focus on energy efficiency. Carrefour has adopted this solution already using it in four supermarkets in Europe. Several seasons have passed since the first installations and some control system operators have expressed very favorable judgments and satisfaction with the results achieved, especially in summer. Refrigerant: R290 (Propane) Cooling capacity: 45,0 kW Energy efficiency rating: 3,50 …

The chiller GS-1-KO-1-N-102-SP designed by the German Chiller Manufacturer (GCM) uses ammonia (R717) and combines three independently operating machines in one unit. The operator therefore profits from full redundancy; if one of the three machines fails, the remaining two continue to cool. The three machines comprising the GS-1-KO-1-N-102-SP are connected by a master control system, but each machine has its own control center for emergencies. By choosing a system that runs on a natural refrigerant without global warming potential (GWP), the consumer is actively contributing to environmentally friendly cooling. The use of R717 in combination with qualitatively high components ensures that the chiller system has an energy efficiency rating (EER) of 5.56. The investment into the environmentally friendly and economic cooling system was supported with a 20% grant of the total production costs by the Federal Office for Economic Affairs and Export Control (BAFA). Furthermore, the GCM grants a five-year warranty for the cooling system with a maintenance contract upon purchase. Refrigerant: R717 Cooling capacity: 444 kW Energy efficiency rating: EER 5,56 …

The GA-2 KO-1-N-200 is a highly efficient air-cooled chiller that produces cold water for industrial processes using the natural refrigerant ammonia (R717). By using high quality components and a natural refrigerant, the chiller achieves an energy efficiency ratio (EER) of 4.94. This in turn reduces the operating costs and increases the machine’s lifetime. Moreover, ammonia is characterized by a global warming potential (GWP) of 0, such that it is not affected by the F-Gas regulation and its phase down schedule. By choosing a system that runs on a natural refrigerant without global warming potential (GWP), the consumer is actively contributing to environmentally friendly cooling. Refrigerant: R717 Cooling capacity: 200 kW Energy efficiency rating: EER 4,94 …

The Fridge Factory’s upright beverage cooler EM1140 has 8 shelves with a storage capacity of up to 670 330ml cans. It is made for tropical climates between 10 and 32°C, and operates on propane (R290). …

LU-VE’s Dry Coolers with axial fans operate with carbon dioxide (R744) as a natural refrigerant. R744 is non-toxic and non-flammable, and has no Ozone Depletion Potential. Moreover, the Global Warming Potential of R744 is much lower than that of hydrofluorocarbons. With low-noise axial fans and reduced energy consumption due to the combination of special profile aluminum fans and copper tubes in the heat exchanger, the Dry Coolers constitute a cost-efficient and climate-friendly solution for industrial water cooling, free cooling or other liquid cooling needs. …

ICOOL, within the Ninhua Group, is the first local company to export natural refrigerants in entire China. In 2012, almost 30000 tons of refrigerants were exported. ICOOL specializes on a range of natural refrigerants including propane (R290), isobutane (R600a) and carbon-dioxide (R744). These are non-ozone depleting, non-corrosive, non-toxic and non-global warming potential alternatives to synthetic refrigerants. Natural refrigerants can be used for a range of applications in both commerical and industrial markets. ICOOL instructs their customers on the correct use and application of natural refrigerants, particularly hydrocarbons. They deliver the clear message that hydrocarbon refrigerants are already in use in many places and that the application of them is not as dangerous as generally believed. …