Pasta & Co.

Planning / Implementation / Main components

KWN Engineering-Gesellschaft mbH

Refrigerant

Ammonia (NH₃) / carbon dioxide (CO₂)

System start-up

2004

For the manufacturing of filled fresh and frozen pasta, and to store the raw materials that go into them, the Austrian market leader Recheis Teigwaren GmbH required conditioned storehouses, regular and deep-freeze storehouses and a combined spiral/freezer-cooler.

Demands

The company required an economical and environmentally friendly refrigeration facility that complies with Austria's F-Gases regulation.

Solution

To furnish all the cold energy demand without using HFCs, the KWN Engineering-Gesellschaft mbH designed a refrigeration facility using the natural refrigerant ammonia. A carbon dioxide-cascade was additionally installed for the deep-freeze storehouse and the spiral freezer and cooler.

Type of facility

Flooded NH3 plant
CO2 direct expansion in cascade

Refrigerant

NH₃ / CO₂

Refrigerant volume

460 kg NH₃ / 135 kg CO₂

Refrigerant

1,200 kg Antifrogen L

Refrigerant temperature

Conditioned stores +2 °C / +6 °C
Cold stores -8 °C / -4 °C
spiral cooler -6 °C / -2 °C

Refrigerant capacity

325 kW NH₃ plant
110 kW CO₂ plant

Main components

4 piston compressors NH₃ plant
3 piston compressors CO₂ plant