Two HFO-1234ze units have been installed at a French fruit producers to replace HCFC-22 for the cooling of 1,400 m3 cold rooms, each storing around 300 tonnes of apples at +1°C.
HFO1234ze has been selected for its GWP of 1 and its energy efficiency compared to other refrigerants.
In particular, CO2 was not suitable for fruit storage since the most intense operating period would be during the summer and autumn, when the CO2 performance would be at its lowest.
The company produces 3,500 tonnes of apples per year; the apples are stored for between four and 12 months in cold rooms in a controlled atmosphere.
The storage facility has more than 12 cold rooms, most of which are still cooled by units operating on R-404A refrigerant. Measurements have shown that the HFO-1234ze units are much more energy efficient.
Source : Producer information