In June 2015 Frialsa opened a new facility. The company had a long history using ammonia since its inception in 1983, but in 2010 decided to work with CO2 as well.
Using a cascade system, we have been able to reduce the ammonia charge from 15,000kg to 1,500kg. The role of CO2 in the cascade system accounts for the heavily reduced ammonia charge and can also be used inside the cold room while ammonia is employed in an outdoor machinery room so employees don't have contact with it."
However, we look at energy efficiency improvements and how to reduce our energy consumption in the long term. You can buy a more economic system but you will end up spending more in energy bills,” García noted."
We are very pleased with the results obtained so far, and if we can choose NH3/ CO2 cascade technology once again, we will definitely do it."