Features:
Model of an absorption refrigeration system;
Boiler operated alternatively by gas or electrically;
Adjustable heating at the evaporator serves as cooling load;
This basic principle of the absorption refrigeration system is demonstrated in the experimental unit taking the example of an ammonia-water solution with the ammonia acting as refrigerant. In the evaporator the liquid ammonia evaporates and withdraws heat from the environment;
The item should demonstrate the functional principle of an absorption refrigeration system with its main components: evaporator, absorber, boiler as generator with bubble pump, condenser. The boiler can alternatively be operated with gas or electrically. Another electric heater at the evaporator generates the cooling load.
Temperatures in the refrigeration circuit and the heating power at the boiler and at the evaporator should be recorded and displayed digitally.
Learning objectives/experiments:
Demonstrate the basic principle of an absorption refrigeration system
Absorption refrigeration system and its main components
Operating behaviour under load
Technical Specification:
Operation of an absorption refrigeration system
Main system components: evaporator, absorber, boiler with bubble pump, condenser
Ammonia-water solution as working medium, hydrogen as auxiliary gas
Boiler to separate ammonia
Bubble pump for transportation in the circuit
Adjustable electrical heater at the evaporator serves as cooling load
Boiler is alternatively heated by electrical heater or gas burner
Piezoelectric igniter for gas operation
Digital displays for temperature and power
 
Technical Specifications:
Working medium: 
ammonia-water solution
Auxiliary gas: hydrogen
Electric heater: 125W
Gas burner, adjustable: propane gas
Evaporator heater, adjustable: 50W
Measuring ranges:
Temperature: 4x -50?200°C
Power: 0-150W
Power: 230V, 50/60Hz, 1 phase
Dimensions: LxWxH: 750x450x750mm
Weight: Approx. 47kg

Send Message

  • You can only upload 1 attachments at most
  • Supported formats: PDF,JPG,PNG,EXCEL,WORD,STP,IGS,DWG,DXF,PDF,STEP
  • The size of the uploaded file should not exceed 10MB
Service

Inquiry
Email
Phone
Wechat