Teaching Equipment Fridge Training Equipment capacity control and faults in refrigeration systems

SR2021 capacity control and faults in refrigeration systems

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 R404a

Technical Data

Compressor

- refrigeration capacity: 2440W at -10/30°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

Measuring ranges

- temperature: 6x -50...50°C; 5x 0...100°C

- pressure: 3x -1...12,5bar; 2x -1...24bar

- flow rate: 2x 1.5...22,5L/h

- compressor power consumption: 0...5kW

Dimensions and Weight

LxWxH: 2420x780x1900mm

Weight: approx. 280kg

Required for Operation

400V, 50Hz, 3 phases or 230V, 60Hz/CSA, 3 phases

Product Details and Warranty
We supply suitable spare pats according to experiment requirement, our products take aluminum structure, A4 paper dimension aluminum and plastic hanging box structure.
We supply 3 years warranty time.

Packaging & Delivery
Package details: plastic film+ plastic foam + plywood box with pallet, and for equipment dimension less than 1CBM, we supply plastic film+ plastic foam+ fine carton.

Arrange delivery within 45 days upon receipt of payment.

Please see below photo for detailed package.

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Company Information

We supply professional educational training equipment and technical teaching equipment, which has been widely applied in Engineering Universities, Polytechnics, Technical Institute, Vocational Schools as well as Industry workforce Development Programs and Training Center. Our products allow students to learn and experiment through valuable hands-on experience, and the technology covered by our training equipment provides knowledge, experiments and didactic skills development that are of critical importance to today´s and tomorrow´s careers.

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Service

We supply supply7*24 hours service, customer design service, OEM service, buyer label service. With professional engineers team and sales team, we assure you good product quality.

Certificate
Our products takes ISO9001 product management system.