Vapour Absorption Refrigeration Trainer (Product Code: SLE/MCE/84) is a heat-driven refrigeration training unit used to show how an absorption system produces cooling from thermal energy instead of a mechanical compressor, in refrigeration and air-conditioning laboratories. This engineering educational equipment in India works with an ammonia-water solution and hydrogen as auxiliary gas, driven by a 125 W electric heater, with an adjustable 50 W evaporator heater as the cooling load. It is made by Jain Scientific Equipments Pvt Ltd (ScienceLab), an OEM manufacturer, at its own factory in Ambala, India.
| Parameter | Detail |
|---|---|
| Working medium | Ammonia-water solution |
| Auxiliary gas | Hydrogen |
| Electric heater | 125 W |
| Evaporator heater | 50 W, adjustable |
| Measuring range – temperature | 4 × −80 to 180 °C |
| Measuring range – power | 0–150 W |
| Dimensions | 800 × 750 × 1200 mm |
| Weight | Approx. 85 kg |
| Power supply options | 230 V, 50 Hz, 1 phase or 230 V, 60 Hz, 1 phase |
| Product code | SLE/MCE/84 |
| Manufacturer | Jain Scientific Equipments Pvt Ltd (ScienceLab) — OEM |
| Country of origin | India (made in Ambala, Haryana) |
Absorption refrigeration systems run on thermal energy — for example industrial waste heat or heat from solar collectors — and small mobile units such as camping refrigerators or hotel minibars generate that heat electrically or with a gas burner. The trainer demonstrates the principle behind them: a liquid evaporates at low temperature when its pressure is reduced, and the ammonia vapour is taken up by water and driven out again by heat rather than being compressed. In process plants the same idea lets waste heat be used for cooling.
Students record temperatures at four points together with the heater powers, then load the evaporator with the adjustable heater to find the cooling effect and compare it with the heat input to estimate the coefficient of performance. Because an absorption system takes time to reach steady operation, switch the 125 W heater on well before the practical and take readings only once temperatures have settled.
ScienceLab is how Jain Scientific Equipments Private Limited trades, and the company is the OEM of the Vapour Absorption Refrigeration Trainer. The trainer is manufactured at its licensed factory in Saha, Ambala, Haryana, India, and sold factory-direct to engineering colleges, polytechnics, laboratory dealers and importers — not through intermediaries.
For later questions about servicing, spares or additional units, ask us and the manufacturing team will answer. The company profile gives more background.
Refrigeration laboratories usually teach absorption alongside these trainers:
See all refrigeration and heat transfer trainers in the Thermodynamics & Heat Transfer Lab Equipment category.
How does the Vapour Absorption Refrigeration Trainer cool without a compressor?
The Vapour Absorption Refrigeration Trainer uses heat instead of a compressor: a 125 W electric heater drives the ammonia-water solution cycle, with hydrogen as auxiliary gas, so ammonia evaporates at low temperature and produces cooling in the evaporator.
What working fluids does the Vapour Absorption Refrigeration Trainer use?
The Vapour Absorption Refrigeration Trainer works with an ammonia-water solution as working medium and hydrogen as auxiliary gas. Keep the unit upright and follow standard ammonia safety practice, as ammonia is hazardous if it is ever released.
What does the Vapour Absorption Refrigeration Trainer measure?
The Vapour Absorption Refrigeration Trainer measures temperature at four points over −80 to 180 °C and power over 0–150 W, which covers the 125 W heater and the adjustable 50 W evaporator heater used as cooling load.
Where is the principle of the Vapour Absorption Refrigeration Trainer used in practice?
The principle shown by the Vapour Absorption Refrigeration Trainer is used where heat is readily available — industrial waste heat or solar collectors — and in small mobile units such as camping refrigerators and hotel minibars heated electrically or by gas.
Who manufactures the Vapour Absorption Refrigeration Trainer?
Jain Scientific Equipments Pvt Ltd (ScienceLab) manufactures the Vapour Absorption Refrigeration Trainer as the OEM at its own factory in Saha, Ambala, Haryana, India, and quotes it directly to colleges, dealers and importers.
What size and power supply does the Vapour Absorption Refrigeration Trainer need?
The Vapour Absorption Refrigeration Trainer measures 800 × 750 × 1200 mm, weighs about 85 kg and runs on a 230 V single-phase supply at 50 Hz or 60 Hz, so a floor or sturdy bench position is needed.
To receive a quotation for the Vapour Absorption Refrigeration Trainer, send your details through the contact page or add it to the enquiry cart. The quotation comes to you from the manufacturer.
Last updated: 24 September 2026