EmJ: Electronic Modulating Ejector

From small convenience stores to large supermarkets, transcritical CO2 systems can now be optimised to operate in warmer climates
 

The fundamental feature of the solution is the continuous modulation ensured by the ejectors, which via dedicated control algorithms allows the system to continuously adapt to the typical variations in operating conditions of refrigeration systems.

EmJ modulating ejectors can be fully disassembled and inspected, and the body is installed separately, allowing the actuator to be removed independently; this makes installation and maintenance extremely simple.
The use of modulating ejectors with the CAREL pRack pR300T compressor rack controller allows integrated and synchronised management of all the rack’s components. The advanced algorithms that ensure energy efficiency and precise control also further simplify the system, allowing for example the reuse of compressors that are not traditionally used in certain operating modes, thus reducing the number of compressors needed.

The EmJ can moreover be used as a modulating high pressure valve, eliminating the need to install additional valves, which would be redundant. In both cases, the result is compressors that are not traditionally used in certain operating modes, thus reducing the number of compressors needed.

Continuous modulation
Continuous modulation represents the forefront of CAREL’s solutions, from electronic expansion valves to control systems for BLDC compressors and now modulating ejectors. Through such precise continuous modulation, CAREL can ensure the highest system efficiency, managing different operating conditions and adapting to different system requirements in the most optimum way, especially at part load.

Continuous modulation simplifies what is actually intrinsically complex technology. This is why CAREL has applied this concept to its range of ejectors, a unique feature allowing the use of just one self-adapting device to guarantee optimum energy efficiency.

For more information visit our stand in EuroShop hall 16 booth E03.