Energy efficiency in refrigeration systems Deluxe

The efficient use of energy in refrigeration is an important topic. A higher capacity requirement is implemented in industry by connecting several small compressors in parallel. This permits the optimum adaptation to the capacity requirement by adding and removing compressors. ET 428 includes three compressors connected in parallel for this purpose which can be switched on or off via a controller.

• refrigeration system in multicompressor operation to investigate energy efficiency
• refrigeration circuit with 3 compressors connected in parallel, condenser, thermostatic expansion valve and coaxial coil heat exchanger as evaporator
• heat exchanger for refrigerant supercooling can be added via valves
• glycol-water circuit includes pump and tank with heater serving as cooling load at the evaporator
• multicompressor controller for the parallel operation of the compressors
• separation of oil from the refrigerant on the delivery side and return to the intake side of the compressors
• fan at the condenser with adjustable speed
• software for data acquisition via USB under Windows 11
• refrigerant R513A, GWP: 631