MR-ET 405 Heat Pump For Cooling And Heating Operation

MR-ET 405 Heat Pump For Cooling And Heating Operation Vocational Training Equipment Teaching Equipment Heat Cooling Trainer

The setup of MR-ET 405 represents a simple compression refrigeration system. Evaporator and condenser have been designed as a pipe coil with each end immersed in a water-filled tank. The water simulates the environment. A thermostatic expansion valve serves as expansion element. Two manometers indicate the two system pressures on the high and low pressure sides. On an additional scale on the manometer the evaporation temperature of the refrigerant is indicated. Two thermometers measure the temperature of the water in the tanks.
This allows for calculations of the amount of heat removed from the environment (evaporator, cold water) and added to the environment (condenser, hot water). A sight glass indicates the aggregate state of the refrigerant upstream of the expansion valve.

Technical details
Specification
fundamentals of refrigeration in a simplified model
typical compression refrigeration system with piston compressor, thermostatic expansion valve, evaporator and condenser (each in the shape of a pipe coil)
2 manometers with temperature scale for the refrigerant show the values of the refrigerant on the high and low pressure sides
2 water-filled tanks with thermometer to demonstrate the cooling and heating effect
pressure switch to protect the compressor
sight glass to monitor the aggregate state of the refrigerant
refrigerant R513A, GWP: 631

Technical data
Compressor
power consumption: 104W at 5/40°C
refrigeration capacity: 278W at 5/40°C
displaced volume: 2,72cm3
Tank: 4x 1700mL