Bench Top Mechanical Heat Pump Trainer

Bench Top Mechanical Heat Pump Trainer

Standard :

Model No. : HI MRA-003
The ?HANSA? air-to-water heat pump trainer consists of a compressor, an evaporator with fan, a thermostatic expansion valve and a coaxial coil heat exchanger as condenser. All components are clearly arranged in the trainer.

The compressed refrigerant vapour condenses in the outer pipe of the condenser and thereby discharges heat to the water in the inner pipe. The liquid refrigerant evaporates at low pressure in the finned tube evaporator and thereby absorbs heat from the ambient air.


Description

The HANSA air-to-water heat pump trainer consists of a compressor, an evaporator with a fan, a thermostatic expansion valve, and a coaxial coil heat exchanger as a condenser. All components are clearly arranged in the trainer.

The compressed refrigerant vapor condenses in the outer pipe of the condenser and thereby discharges heat to the water in the inner pipe. The liquid refrigerant evaporates at low pressure in the finned tube evaporator and thereby absorbs heat from the ambient air.

The hot water circuit consists of a tank, a pump, and the condenser as a heater. For a continuous operation, the generated heat is dissipated via an external cooling water connection. The cooling water flow rate is set via a valve and measured.

Compressor
Capacity: 372W at 7,2/32?C

Coaxial coil heat exchanger (condenser)
Refrigerant content: 0,55L

Water content: 0,3L

Finned tube evaporator
Transfer area: approx. 0,175m2

Pump
Max. Flow rate: 1,9m3/h

Max. Head: 1,4m

Hot water tank volume: approx. 4,5L
Refrigerant: R134a/22/A
Filling volume: 1kg

CO2-equivalent: 0,6t

Measuring ranges
Pressure: 2x -1?15bar

Temperature: 4x 0?100?C, 2x -100?100?C

Power: 0?6000W

Flow rate: 0?108L/h (water)

Flow rate: 10?160L/h (cooling water)

Required for operation
230V, 50Hz, 1 phase
230V, 60Hz, 1 phase

DIMENSIONS AND WEIGHT

L x W x H (approx.): 1600 x 800 x 1600 mm
Weight (approx.): 185 kg

Design and operation of an air-to-water heat pump
Representation of the thermodynamic cycle in the log p-h diagram
Energy balances
Determination of important characteristic variables
Compressor pressure ratio
Ideal coefficient of performance
Real coefficient of performance
Dependence of the real coefficient of performance on the temperature difference (air-to-water)
Operating behavior under load

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