Bench Top Mechanical Heat Pump Trainer
Product Code : EL-RAACLE-10785
Bench Top Mechanical Heat Pump Trainer (code EL-RAACLE-10785) is a training unit built as an air-to-water heat pump, used to study the design, operation and thermodynamic cycle of a heat pump. A compressor of 372 W capacity at 7,2/32 °C, a finned tube evaporator with fan, a thermostatic expansion valve and a coaxial coil condenser heat water in a hot water circuit with a 4,5 L tank and pump, and the heat is carried away through an external cooling water connection.
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Specifications
| Parameter | Detail |
|---|---|
| Type | Air-to-water heat pump |
| Main components | Compressor, evaporator with fan, thermostatic expansion valve and coaxial coil heat exchanger as condenser |
| Continuous operation | Generated heat dissipated via an external cooling water connection |
| Condenser operation | Compressed refrigerant vapour condenses in the outer pipe and gives heat to the water in the inner pipe |
| Evaporator operation | Liquid refrigerant evaporates at low pressure in the finned tube evaporator, absorbing heat from ambient air |
| Hot water circuit | Tank, pump and condenser as heater |
| Cooling water flow | Set by a valve and measured |
| Compressor | |
| Capacity | 372 W at 7,2/32 °C |
| Coaxial coil heat exchanger (condenser) | |
| Refrigerant content | 0,55 L |
| Water content | 0,3 L |
| Finned tube evaporator | |
| Transfer area | Approx. 0,175 m² |
| Pump and tank | |
| Pump maximum flow rate | 1,9 m³/h |
| Pump maximum head | 1,4 m |
| Hot water tank volume | Approx. 4,5 L |
| Refrigerant | |
| Refrigerant | R134a/22/A |
| Filling volume | 1 kg |
| CO2-equivalent | 0,6 t |
| Measuring ranges | |
| Pressure | 2 × -1 to 15 bar |
| Temperature | 4 × 0 to 100 °C; 2 × -100 to 100 °C |
| Power | 0 to 6000 W |
| Water flow rate | 0 to 108 L/h |
| Cooling water flow rate | 10 to 160 L/h |
| Learning content | |
| Heat pump design | Design and operation of an air-to-water heat pump |
| Cycle diagram | Representation of the thermodynamic cycle in the log p-h diagram |
| Energy study | Energy balances |
| Characteristic variables | Determination of important characteristic variables |
| Pressure ratio | Compressor pressure ratio |
| Real COP | Real coefficient of performance |
| COP and temperature | Dependence of the real coefficient of performance on the air-to-water temperature difference |
| Load behaviour | Operating behaviour under load |
| Theoretical COP | Theoretical coefficient of performance |
| Power, dimensions and weight | |
| Power supply | 230 V, 50 Hz, 1 phase; or 230 V, 60 Hz, 1 phase |
| Dimensions | Approx. 1600 × 800 × 1600 mm (L × W × H) |
| Weight | Approx. 185 kg |
| Supply | |
| Product code | EL-RAACLE-10785 |
| Manufacturer | Engineering Lab Equipment, Ambala, Haryana, India |
What Is the Bench Top Mechanical Heat Pump Trainer Used For?
A heat pump runs the same vapour compression cycle as a refrigerator but is judged by the heat it delivers, here taken from the room air and passed to water. Students run the unit with the cooling water valve set to a chosen flow, record pressures, temperatures, power and water flows, and mark the thermodynamic cycle in a log p-h plot. From an energy balance on the condenser and the compressor input they calculate the real coefficient of performance, compare it with the theoretical value, and see how it falls as the temperature difference between air and water grows and how the unit behaves under load.
What to Specify When Ordering
- Quantity — the number of heat pump trainers to be supplied.
- Supply version — 50 Hz or 60 Hz, both at 230 V single phase.
Frequently Asked Questions
How does the air-to-water heat pump trainer work?
Refrigerant evaporates in the finned tube evaporator, taking heat from ambient air, is compressed, and condenses in the outer pipe of the coaxial coil condenser, passing heat to water in the inner pipe.
What is the compressor capacity?
The compressor has a capacity of 372 W at 7,2/32 °C. The coaxial condenser holds 0,55 L of refrigerant and 0,3 L of water.
What does the hot water circuit consist of?
It is made up of a tank of approx. 4,5 L, a pump with a maximum flow rate of 1,9 m³/h and head of 1,4 m, and the condenser acting as the heater.
Which performance figures can students determine?
They can find the compressor pressure ratio, the real and theoretical coefficients of performance, energy balances, and the effect of the air-to-water temperature difference on the real coefficient of performance.
What ranges do the instruments cover?
Pressure 2 × -1 to 15 bar, temperature 4 × 0 to 100 °C and 2 × -100 to 100 °C, power 0 to 6000 W, water 0 to 108 L/h and cooling water 10 to 160 L/h.
How big is the trainer?
The trainer is approx. 1600 mm long, 800 mm wide and 1600 mm high, and it weighs about 185 kg.
OEM Manufacturer
The Bench Top Mechanical Heat Pump Trainer is made by Engineering Lab Equipment (Engineering Labs Equipment Pvt Ltd) at its works at Plot No. 43, Industrial Park, Sector 2, Growth Center, Saha, District Ambala, Haryana, India. The company designs, makes and tests refrigeration and air conditioning trainers and test rigs for engineering colleges, polytechnics, technical training institutes and research laboratories in India and overseas, and can build equipment to an institution's own requirements. Tender and OEM enquiries are handled through the Tenders/OEM page.
Related Refrigeration and Air Conditioning Equipment
- Vapour Compression Refrigeration Trainer — refrigeration circuit trainer with glass evaporator and condenser, float valve and SES36 refrigerant.
- Vapour Absorption Refrigeration Trainer — ammonia-water absorption refrigeration demonstrator with hydrogen auxiliary gas and 125 W electric heater.
- Computerized Bench Top Cold Storage Trainer — refrigeration chamber trainer with two evaporators, electric and hot gas defrost and USB data logging.
See the full Refrigeration and Air Conditioning Lab Equipment range or all Mechanical Engineering Lab Equipment.
Request a Quote
For this and other refrigeration and air conditioning lab equipment, schools and colleges can contact Engineering Lab Equipment, a manufacturer, supplier and exporter based in Ambala, India. To ask for a quotation, send the number of heat pump trainers and the supply frequency required and your delivery location through the contact page, or use the Add To Cart enquiry button on this page.
Last updated: October 2026
