Page 7 - Climalife_Contact_15_EN

INDUSTRIAL REFRIGERATION I BAKERY
7 | CASE STUDY | February 2019 | Climalife contact #15
Ultimately, IceCool recommended a system with 16 independent condensing units installed outside the building with a total cooling capacity of 320 kW, which limits the risks.
In total, 480 kg of Solstice® L40X was charged into the different units that supply two freezers with an evaporation temperature at -42°C, three freezers at -28°C and 11 cooling at -8°C / -10°C. The installation is equipped with evaporators and condensers specially selected by the manufacturer Güntner, which allows for the temperature glide of R-455A to be managed without any difficulty. The cooling process ensures the dough rises within 24 hours. This process is carried out at a temperature of +/-0°C and is fully automated. Der Backer Feihl is known on the market for its unique production process and low gluten content in all its breads.
The choice of R-455A has the added advantage of reducing the number of leakage tests to once a year for both freezers and is not necessary for other refrigeration installations with a charge of less than 5 CO2 tonne equivalent.
Six months after commissioning, the installation is working perfectly, and all stakeholders are satisfied with the result and warmly thank Climalife and Honeywell for their support throughout this project.
Description of the refrigeration system at the Feihl bakery in Neumarkt
Number of cooling circuits ASHRAE 34 classification
The 16 condensing units with a total cooling capacity of approximately 320 kW and charged with 480 kg of Solstice® L40X.
Solstice® L40X:
the standard fluid as of January 1, 2019 at IceCool
With a GWP of 148, R-455A meets the requirements
of F-Gas and offers a long-term solution for
new installations. Its low flammability, high energy efficiency, high critical temperature and low critical pressure are significant advantages for freezing and refrigeration applications.
"In 2018, we completed several projects with R-455A and chose to use this fluid, next to the “natural” refrigerants, the standard for future installations based on lower energy consumption and end customer satisfaction," says Peter Wehrens.
+ More info at:
climalife.dehon.com/r-455a
System technical data
Total
Deep frozen
Frozen
Frozen
Refrigeration
Refrigeration
Refrigeration
Evaporation temperature (°C)
-35°C
-25°C
-25°C
-10°C
-8°C
-8°C
Cooling capacity (kW) / circuit
321.2
23.3
36.9
15
18.7
13.8
25.6
16
2
1
2
9
1
1
Bitzer compressor type
30hp 2-stage
34hp
14hp
6hp
4hp
9hp
A2L
A2L
A2L
A2L
A2L
A2L
Refrigerant fluid
R-455A
R-455A
R-455A
R-455A
R-455A
R-455A
GWP of the fluid
148.0
148.0
148.0
148.0
148.0
148.0
Refrigerant charge (kg)
480.4
39.7
33.5
21.2
31.4
11.7
30.8
Charge in CO2 eq Tonnes
5.8
4.9
3.1
4.6
1.7
4.5
PED category
III
III
III
III
III
III
Leak test per year
1
0
0
0
0
0