ASR2006 Refrigeration System With Open Compressor Teaching Equipment Refrigeration Training Equipment
Learning Objectives / Experiments
– fundamentals of refrigeration
– design and components of a refrigeration system
* open compressor with drive
* condenser
* evaporator
* thermostatic expansion valve
* pressure switch
– determination of important characteristic variables
* coefficient of performance
* compressor capacity
* refrigeration capacity
* compression ratio
* volumetric efficiency
– representation of the thermodynamic cycle in the log p-h diagram
– determination of the compressor efficiency
– effect of the compressor flow rate on the refrigeration circuit
Specification
[1] investigation of a refrigeration circuit with speedcontrolled
compressor
[2] refrigeration circuit with open compressor,
condenser, thermostatic expansion valve and
evaporator in refrigeration chamber
[3] cooling load in the refrigeration chamber adjustable via heater
[4] drive and speed adjustment of the open compressor
[5] condenser and evaporator with fan
[6] digital displays for pressure, temperature, flow rate, power and speed
[7]software for data acquisition via USB under Windows Vista or Windows 7
[8] refrigerant AR134a, CFC-free
Technical Data
Open compressor
– refrigeration capacity: approx. 845W (at speed:
975min-1 and -10/40°C)
– speed: 500…1.000min-1
Condenser with fan transfer area: 2,5m²
– capacity: approx. 1.935W at 25°C air temperature
(ambient) / Δt=15°C
Evaporator
– transfer area: 3,62m²
– capacity: 460W at 3°C air temperature
(chamber) / Δt=13°C
Heater power: 500W
Measuring ranges
– temperature: 4x -5…105°C, 1x -50…250°C
– pressure: 2x -1…15bar
– speed: 1x 0…1.000min-1
– flow rate AR134a: 1x 2…15g/s
– power: 1x 0…500W
Dimensions and Weight
LxWxH: 1.470x800x1.850mm
Weight: approx. 185kg
Required for Operation
230V, 50/60Hz, 1 phase or 120V, 60Hz/CSA, 1 phase
