38-Secondary Controllers In Refrigeration Systems Refrigeration Trainer Didactic Equipment

38-Secondary Controllers In Refrigeration Systems Refrigeration Trainer Didactic Equipment

Brand: ShouldShine

Model: SR2038

Learning Objectives / Experiments

– properties and application options of different secondary controllers

* evaporation pressure controller (KVP)

* start-up controller (compressor intake control;

KVL)

* capacity controller (control of the compressor delivery capacity; KVC)

* condensation pressure controller (WVFX, KVR)

* receiver pressure controller (KVD with NRD)

– adjustment of optimum operating points

– fault finding in secondary controllers

Specification

[1] trainer from the practical series for the training of mechatronics engineers for refrigeration

[2] refrigeration system with different secondary controllers: evaporation pressure controller KVP, capacity controller KVC, condensation pressure controller KVR, pressure-controlled water valve WVFX as condensation pressure controller, receiver pressure controller KVD, start-up controller KVL

[3] 2 refrigeration chambers: refrigeration and freezing stage

[4] evaporator selectable via solenoid valves

[5] adjustable electric heater in the refrigeration chambers as cooling load

[6] water-cooled coaxial condenser

[7] pressure measurement at all relevant points in the system

[8] refrigerant R134a, CFC-free

Technical Data

Compressor according to CECOMAF

– refrigeration capacity: 990W at -5/55°C

– power consumption: 685W

Cooling load: 0…500W

Receiver: 1,3L

Measuring ranges

– pressure: 5x -1…9bar / 3x -1…24bar

– flow rate water: 20…250L/h

– flow rate refrigerant: 1x 1…11,5L/h; 1x 2…27L/h

– temperature: -50…300°C

Dimensions and Weight

LxWxH: 2.500x790x1.900mm

Weight: approx. 280kg

Connections

230V, 50Hz, 1 phase

Water connection