Johnson Controls Marine Case Study - CO2 Provision Plant

In the search for energy efficient and low emission units for provision cooling on board cruise liners, the old technology of using carbon dioxide (CO2) is now seeing new light.

This technology was very common in the early to mid 1900’s after which synthetic refrigerants took over during several decades. Now, however, there are cost effective solutions available that also take advantage of the environmental aspects and high efficiency CO2 units provide. 

The unit with its multiple compressors and variable frequency drives, is compact yet serviceable, based on an industrial and robust design and can be approved by any major classification society. Another of the many advantages is its reduced footprint compared with conventional provision units – the space used for a conventional set-up of one freeze and one chiller unit can be reduced by roughly 50% with our CO2 unit.

Even though, at first impression, it may seem strange to use CO2 units in the current days of chasing CO2 reductions, it is obvious when you look at the facts this is a very clever solution.

Basically, the CO2 units contain a relatively small amount of refrigerant (CO2), and moreover the Global Warming Potential (GWP) = 1. Compare this with the numbers of e.g. R448A (1273) or R407C/F (1774/1825) and you will see the superiority of using a unit operating with CO2.

So, if you need a compact, clever and clean provision cooling unit, contact us to see even more of the benefits we can offer.