37-Refrigeration Circuit With Variable Load Refrigeration Laboratory Equipment Teaching Equipment

37-Refrigeration Circuit With Variable Load Refrigeration Laboratory Equipment Teaching Equipment

Brand: ShouldShine

Model: SR2004

Learning Objectives / Experiments

– design and components of a refrigeration system

* compressor

* condenser

* thermostatic expansion valve

* evaporator

* pressure switch

– representation of the thermodynamic cycle in the log p-h diagram

– determination of important characteristic variables

* coefficient of performance

* refrigeration capacity

* compressor work

– operating behaviour under load

Specification

[1] investigation of a refrigeration circuit with water circuit as load

[2] refrigeration circuit with compressor, condenser with fan, thermostatic expansion valve and coaxial coil heat exchanger as evaporator

[3] water circuit with pump, tank with heater as cooling load at the evaporator

[4] heater with controller to adjust the tank temperature

[5] record of all relevant measured values and display directly at the location of measurement

[6] LabVIEW software for data acquisition via USB under Windows XP or Windows Vista

[7] refrigerant R134a, CFC-free

Technical Data

Compressor

– refrigeration capacity: approx. 380W at 5/40°C

Evaporator

– refrigerant volume: 0.4L

– water volume: 0.8L

Condenser

– transfer area: approx. 0.175m²

– fan power consumption: 2x 29W

Pump

– max. flow rate: 1.9m³/h

– max. head: 1.4m

Tank

– volume: approx. 4.5L

– heater: approx. 450W

Measuring ranges

– pressure: 2x -1…15bar

– compressor power: 1x 0…600W

– temperature: 6x 0…100°C

– flow rate (water): 1x 0.05…1.8L/min

Dimensions and Weight

LxWxH: 1400x560x1800mm

Weight: approx. 120kg

Connections

230V, 50/60Hz, 1 phase or 120V, 60Hz, 1 phase