SR2022 Energy Efficiency in Refrigeration Systems Teaching Equipment Refrigerator Trainer Vocational Training EquipmentBrand: ShouldShine
Model: SR2022
Learning Objectives / Experiments
- Variables affecting energy efficiency
* controller parameters
* refrigerant supercooling
- Interconnected operation of compressors
- Operation of a multicompressor controller
- Methods for returning oil in a multicompressor refrigeration system
- Representation of the thermodynamic cycle in the log p-h diagram
Specification
[1] Refrigeration system in multicompressor operation to investigate energy efficiency
[2] Refrigeration circuit with 3 compressors connected in parallel, condenser, thermostatic expansion valve and coaxial coil heat exchanger as evaporator
[3] Heat exchanger for refrigerant supercooling can be added via valves
[4] Glycol-water circuit includes pump and tank with heater serving as cooling load at the evaporator
[5] Multicompressor controller for the parallel operation of the compressors
[6] Separation of oil from the refrigerant on the delivery side and return to the intake side of the compressors
[7] Fan at the condenser with adjustable speed
[8] LabVIEW software for data acquisition via USB under Windows XP or Windows Vista
[9] Refrigerant R134a, CFC-free
Technical Data
3 compressors
- refrigeration capacity: each 1584W at -10°C/55°C
- power consumption: each 1156W at -10°C/55°C
Condenser with fan
- capacity: 4100W
- air flow: 1250m³/h
Coaxial coil heat exchanger capacity
- 4kW at ΔT=9K; 0,6m³/h glycol-water mixture
Glycol-water mixture pump
- max. flow rate: 5m³/h
- max. head: 6m
Heater power: 3kW
Tank
- glycol-water mixture: 23L
- refrigeration circuit receiver: 5,8L
Measuring ranges
- temperature: 4x 0...100°C, 4x -100°C...100°C
- pressure: 1x -1...9bar, 1x -1...24bar
- flow rate: 1x 1..25L/min
- compressor power: 0...4995W
Dimensions and Weight
l x w x h: 1800x700x1900mm
Weight: approx. 300kg
Connections
400V, 50/60Hz, 3 phases
