Carrier Transicold has returned to active controlled atmosphere with the launch of its “Next-Gen EverFRESH” system at Intermodal Europe.
Carrier Transicold has launched its next-generation EverFRESH system at the Intermodal Exhibition in Hamburg this week. For some time now Carrier Transicold has offered its “XtendFRESH” controlled atmosphere system, which is a passive CA technology that uses a scrubber to remove CO2 and ethylene from the atmosphere in a reefer container.
Carrier Transicold now joins Daikin in offering active CA technology, which uses a nitrogen pump in the system, rather than relying on cargo respiration. One of the benefits of generating nitrogen is that oxygen can be displaced more quickly than relying on natural cargo respiration, slowing the natural ripening process more quickly.
EverFRESH features sensors, a nitrogen membrane separator, air compressor and air filters. “In use, the compressor pulls fresh air into the system, which then removes water vapor from the compressed air stream before it enters the membrane separator. The hollow-fiber media of the separator extracts oxygen and captures carbon dioxide, discharging concentrated nitrogen into the container. If supplemental oxygen is needed, the membrane can be bypassed. The EverFRESH system can independently maintain oxygen at user-selected levels between 3 – 17% and carbon dioxide at between 2 – 19%,” Carrier Transicold explains.
“The active nature of the EverFRESH system can handle a broader range of perishable commodities than modified controlled-atmosphere systems, making it a more versatile choice for many customers,” said Jim Taeckens, senior product manager, Global Container Refrigeration, Carrier Transicold. “Another key benefit of the EverFRESH system’s active technology is that it maintains a positive air pressure within the container, making it far less sensitive to box leakage than other types of systems".
Currently only Daikin offers an active CA system in the market, and despite its success with active technology some reefer machinery manufacturers still active technology as too expensive and complex for the market. Cargo owners, however, do see real benefits from active CA systems. A February 2018 WorldCargo News feature noted a freight services provider working for New Zealand avocado exporters regarded Hamburg Sud’s EverFRESH 40’ CA containers (which used the previous Carrier EverFresh active CA system) as the best option for avocados, due to the built-in nitrogen pump, and lamented that there were not enough units still available in the market.
Carrier has responded, and the new Next-Gen EverFRESH has been improved to address issues with the original system and broaden its appeal. “While the original design had a very strong following, the costs associated with its components and associated controls limited its adoption. Today, our technology has improved to the point that we are pleased to be able to offer an active system that is significantly more affordable. It is also much less complex and easier to service than competitive systems,” Taeckens said.
EverFRESH will be available in early 2020 for Carrier Transicold PrimeLINE refrigeration systems equipped with its new Micro-Link 5 controller option.