ASR2013 Refrigeration System with Two Stage Compression Educational Equipment Air Conditioner Training Equipment
Learning Objectives / Experiments
– design and function of a refrigeration system with
two-stage compression and injection intercooling
– effect of the inlet temperature at the HP compressor on the efficiency of the compression
* with intercooling
* without intercooling
– effect of the additional refrigerant intercooling
– distribution of the compressor pressure ratios
– represent and understand the refrigeration cycle process in the log p-h diagram
Specification
[1] refrigeration system with two-stage compression
[2] hermetic low and high pressure compressors
[3] adjustable intercooling via refrigerant injection
[4] heat exchange for additional supercooling of the liquid refrigerant
[5] closed refrigeration chamber contains evaporator with fan and adjustable electric heater as cooling load
[6] digital display for temperatures, drive power of the compressors and cooling load power
[7] software for data acquisition with USB under Windows Vista or Windows 7 with online display of the log p-h diagram
[8] refrigerant AR404a, CFC-free
Technical Data
Low pressure compressor (LP)
– displaced volume: 25,93cm³
– power consumption: 550W
– refrigeration capacity: 1744W at -10/32°C
High pressure compressor (HP)
– displaced volume: 8,86cm³
– power consumption: aprrox. 375W
– refrigeration capacity: 583W at -10/32°C
Measuring ranges
– flow rate: 1x 2…29L/h, 1x 4…40L/h
– pressure: 1x -1…15bar, 2x -1…24bar
– temperature: 8x -75…125°C
– power: 0…562W, 0…750W, 0…2250W
Dimensions and Weight
LxWxH: 1900x790x1900mm
Weight: approx. 283kg
Required for Operation
230V, 50/60Hz, 1 phase
