Capacity Control And Faults In Refrigeration Systems Didactic Equipment Vocational Education Equipment Refrigeration Training Equipment

Name: Capacity Control And Faults In Refrigeration Systems Didactic Equipment Vocational Education Equipment Refrigeration Training Equipment
Brand: sdafit.com
SKU: ET 422
Availability: InStock
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Item No.: ET 422

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Description

ET 422 Capacity Control And Faults In Refrigeration Systems Didactic Equipment Vocational Education Equipment Refrigeration Training Equipment

Investigation of different methods for capacity control; fault simulation
Features
- practice-oriented model of a commercial refrigeration system
- refrigeration and freezing chamber to investigate different methods for capacity control
- simulation of twelve faults
- two defrosting methods for freezing chamber
Learning objectives/experiments
- familiarisation with the key devices for changing the refrigeration capacity
-- thermostat
-- capacity controller
-- start-up controller
-- evaporation pressure controller
-- condensation pressure controller
- fault finding in refrigeration system components
- effect of refrigerant supercooling
- familiarisation with defrosting methods
-- electric defrost heater
-- hot gas defrosting
- representation of the thermodynamic cycle in the log p-h diagram
Specification
[1] investigation of a refrigeration system with refrigeration and freezing chambers
[2] refrigeration circuit with compressor, condenser, capacity controller, start-up controller, combined pressure switch and 2 evaporators in insulated chambers
[3] each chamber with solenoid valve, thermostat, thermostatic expansion valve, fan and heat exchanger for refrigerant supercooling
[4] refrigeration chamber with evaporation pressure controller
[5] freezing chamber with electric defrost heater and hot gas defrosting
[6] separate or parallel operation of the chambers via solenoid valves
[7] simulation of 12 faults
[8] touch panel PC for fault activation, data acquisition, evaluation and representation in the log p-h diagram
[9] refrigerant R449A, GWP: 1397

Technical data
Compressor
- refrigeration capacity: 1640W at -10/50°C
- power consumption: 980W at -10/50°C
Condenser with fan
- volumetric air flow rate: 570m3/h
Evaporator transfer areas
- refrigeration chamber: 1,12m2
- freezing chamber: 1,88m2
Electric defrost heater: approx. 125W
Capacity controller: 0,2...6bar
Start-up controller: 0,2...6bar
Thermostat: 2x -25...15°C
Evaporation pressure controller: 0...5,5bar
Refrigerant
- R449A
- GWP: 1397
- filling volume: 3,21kg
- CO2-equivalent: 4,5t
Measuring ranges
- temperature: 6x -50...50°C; 5x 0...100°C
- pressure: 3x -1...15bar; 2x -1...24bar
- flow rate: 2x 2...29L/h
- power consumption: 0...5kW (compressor)
400V, 50Hz, 3 phases
230V, 60Hz, 3 phases; 400V, 60Hz, 3 phases
UL/CSA optional
LxWxH: 2420x780x1900mm
Weight: approx. 280kg