Refrigerating plant

Refrigeration system with NH₃ in the primary circuit and glycol in the secondary circuit. The system consists of the following components: 1. 2 refrigeration compressors for compressing NH₃, of which: - 1 x reciprocating compressor (Sabroe, 2008) with a capacity of 75 kW (used during normal operation) - 1 x screw compressor (Stal, 1991) with a capacity of 75 kW (used as a standby unit) 2. Plate heat exchanger (Alfa Laval, 1997) for evaporating NH3 whilst simultaneously cooling glycol. 100 m³/h of glycol is cooled from 0°C to -3°C. The glycol transports the cold into the process. 3. Condenser for the liquefaction of NH₃ (Evapco, 2002) with a condensation capacity of 620 kW, installed outdoors. 4. NH3 collection tank (EM-Polar, 2009) with a volume of approx. 3 hl 5. Glycol tank, vertical, clad 6. 2 centrifugal pumps for pumping glycol 7. Control cabinet with touch panel as HMI. 8. Various pipework, valves, sensors