08/12/2024
The Circlemiser with Free Cooling chillers are a revolutionary range by Geoclima that integrates free cooling technology into the Circlemiser series. These next-generation chillers use the cold ambient air to lower the entering water temperature and use cylindrical microchannel heat exchangers (Circlemiser) to further reduce the load on compressors. The series integrates the coils in a concentric configuration with the condenser placed inside the free cooling heat exchanger under a single fan.
Geoclima has launched the Circlemiser with Free Cooling chillers.
The benefits are clear and tangible. They have a greater energy efficiency compared to traditional coils – thanks to the larger heat exchange surface of the condensing and free cooling modules. These chillers also have a high cooling capacity, up to 625.6 RT (2200 kW) and are optimized for mission-critical applications, thanks to the innovative integration of the two technologies.
For the design of this range, Geoclima’s Research and Development division was inspired by the Circlemiser series, using three complementary technologies. First, the use of cylindrical microchannel heat exchangers increases the heat exchange surface by 35% compared to traditional exchangers, all while maintaining the same footprint as a traditional chiller. This is an innovative AHRI-certified solution. Secondly, the series employs Turbocor technology, an oil-free centrifugal compressor with magnetic levitation. These compressors ensure exceptional performance and efficiency, significantly reducing environmental impact. Lastly, the chillers are equipped with high efficiency flooded evaporators that minimize the difference between evaporation temperature and fluid outlet temperature. This feature not only reduces energy consumption but also enhances overall performance and energy efficiency.
In addition to Circlemiser technology, the new range uses the free cooling system, which leverages ambient temperature to lower the entering water temperature when it is at least 3°K (3°C or 5.4°F) above the external temperature. The free cooling coils are MCHX microchannel cylindrical heat exchangers, with the condenser placed inside. This allows air to pass through the free cooling coil before reaching the condenser. Thanks to these heat exchangers with a large surface area, the load on compressors is minimized or eliminated, even with positive ambient temperatures. Free cooling is therefore a particularly energy-efficient cooling technology.
The Circlemiser with Free Cooling range has also been designed with a focus on environmental sustainability. Besides being available with widely used R-513A and R-134a refrigerants, it is also compatible with HFO-R1234ze, which boasts a GWP (Global Warming Potential) of 6 and an ODP (Ozone Depletion Potential) of 0. Additionally, HFO-R1234ze guarantees particularly high efficiency. With an entering water temperature of 93.2°F (34°C) and a leaving water temperature of 75.2°F (24°C), the chiller can provide up to 625.6 RT and an E.E.R. (Energy Efficiency Ratio) at full load ranging from 18.19 BTU/Wh at 95°F (35°C) to 121.19 BTU/Wh at 59°F (15°C).
The combination of Circlemiser technology with the free cooling system guarantees unmatched performance, making it the ideal solution for mission-critical applications, including data centers, hospitals, power plants, pharmaceutical, food, chemical and automotive industries, as well as high-precision manufacturing plants.
About Geoclima
Since 1994, Geoclima has been designing and producing special chillers for applications in air conditioning and refrigeration systems, with a strong focus on quality and environmental sustainability. Geoclima Group counts multiple offices and companies around the world, with its headquarters in North-East Italy. Recently, it was acquired by Munters Group, global leader in energy-efficient air treatment and climate solutions. For more information, visit https://www.geoclima.com.
