Simple Compression Refrigeration Circuit

Simple Compression Refrigeration Circuit

Model: SR2002

Learning Objectives / Experiments

– fundamentals of a compression refrigeration circuit

– key components of a refrigeration system

* compressor, evaporator, condenser, expansion element

– relationship between the pressure and boiling point of a liquid

– operation of a refrigeration system / heat pump

– developing a basic understanding of the thermodynamic cycle

– simple energy balance

Specification

[1] fundamentals of refrigeration in a simplified model

[2] typical compression refrigeration system with piston compressor, thermostatic expansion valve, evaporator and condenser (each in the shape of a pipe coil)

[3] 2 manometers with temperature scale for the refrigerant show the values of the refrigerant on the high and low pressure sides

[4] 2 water-filled tanks with thermometer to demonstrate the cooling and heating effect

[5] pressure switch to protect the compressor

[6] sight glass to monitor the aggregate state of the refrigerant

[7] refrigerant R134a, CFC-free

Technical Data

Compressor – power consumption: 69,7W at 0/55°C – refrigeration capacity: 82,6W at 0/55°C – displaced volume: 1,41cm³

Manometer with temperature scale for R134a

– intake side (low pressure) pressure: -1…9bar temperature: -50…40°C

– delivery side (high pressure) pressure: -1…24bar temperature: -40…80°C 

Thermometer: 2x -10…50°C Tank: 4x 1.700ml

Dimensions and Weight LxWxH: 750x360x690mm Weight: approx. 30kg