Absorption Refrigeration Trainer IRC-1902
Experiments Covered:
- Fundamental operation of absorption refrigeration systems
- Identification of major system components
- Performance testing under load conditions
- Analysis of heat transfer and refrigeration cycle behavior
- Study of boiler, absorber, evaporator, and condenser operation
This trainer is equipped with essential system components including:
- Evaporator
- Absorber
- Boiler/Generator with Bubble Pump
- Condenser
The boiler can be operated using either:
- Electrical Heater
- Gas Burner (Optional)
A bubble pump is integrated for fluid transportation within the circuit, while a piezoelectric igniter supports optional gas operation. An adjustable electrical heater at the evaporator provides cooling load simulation.
For measurement and analysis, the system includes:
- Digital temperature monitoring throughout the refrigeration circuit
- Heating capacity measurement at the boiler
- Evaporator power measurement
- Digital displays for operational parameters
Key Features
- Demonstrates complete absorption refrigeration cycle
- Uses ammonia-water solution with hydrogen support gas
- Quiet operation similar to absorption cooling units used in hotels and camping refrigerators
- Adjustable electrical heating load
- Dual boiler operation (electric or optional gas)
- Digital data acquisition for experimental analysis
- Comprehensive training manuals and experimental guidelines included
Absorption Refrigeration Trainer – IRC-1902
The Absorption Refrigeration Trainer (IRC-1902) is an advanced educational system designed to demonstrate the operating principles and performance analysis of absorption refrigeration technology. This trainer uses an ammonia-water solution as the working refrigerant and hydrogen as an auxiliary gas to illustrate the thermodynamic cycle of absorption cooling systems.
The system operates based on the principle that liquids evaporate at lower temperatures when pressure decreases. In this trainer, liquid ammonia evaporates inside the evaporator, absorbing heat from the surrounding environment and producing the cooling effect. The ammonia vapor is then absorbed by water inside the absorber, which lowers the evaporation pressure and enables continuous system operation.
A high-concentration ammonia solution is circulated and purified to prevent interruption of the absorption process. The solution is heated in the generator (boiler), causing ammonia to evaporate again. After condensation and cooling in the condenser, the ammonia returns to the evaporator to repeat the refrigeration cycle. The low-concentration ammonia solution is simultaneously returned to the absorber for continuous circulation.
