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Sabroe CAFP CO2/NH3 low-temperature chiller Compact packaged freezer systems using reciprocating or screw compressors, with a 100–2,500 kW capacity range The highly customisable Sabroe CAFP freezer systems are using CO2 on the low-temperature side and NH3 (ammonia) on the high-temperature side, giving you the best of both worlds CO2 has its strength at low temperatures, and NH3 at high temperatures A combination of both provides the user with a system, which is working on natural refrigerants and at the same time ensuring high efficiency and safety The ammonia charge has been reduced to an absolute minimum and, instead of ammonia, CO2 is distributed to the user production area CO2 has a high volumetric cooling capacity and this goes hand in hand with high efficiency These packaged systems are built around Sabroe reciprocating compressors that use CO2 as refrigerant, which gives them eight times greater cooling capacity than corresponding compressors using ammonia This in turn makes the low-temperature compressor much smaller, and the whole package considerably more compact than traditional two-stage ammonia-based freezer systems The compact design means the CAFP package can be installed even when space is limited Compared with other solutions for low temperatures, a CAFP unit uses significantly less power in the temperature range down to –54°C This results in energy savings of as much as 15 percent compared with traditional two-stage ammonia systems, and up to 45 percent compared with single-stage setups Alternatively, the higher capacity can be used for a higher throughput on the freezer equipment Range There are six standard models in this range of freezer systems, with capacities ranging from 100 kW to 800 kW On request, we offer units up to 2,500 kW All CAFP units are operationally tested with refrigerant before dispatch Factory acceptance test (FAT) available Compact design and technology that require small footprint Use of CO2 as low-temperature refrigerant reduces piping complexity CO2 is a simple, inexpensive natural refrigerant Big savings on installation costs Reduces installation costs Low operating costs CAFP unit controlled and monitored by UniSAB systems controller Features Benefits High COP and extremely low power consumption, even at part load Low operating costs Very small ammonia charge, located on the unit itself No risk of ammonia leaks in production areas, cold stores and working areas 48PDF Image | Sabroe Products 2022
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