SR2006 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 R134a, 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 R134a: 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