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Teaching suggested applications*

-          Identification of circuit components of air / water heat pump

-          Visualization of the condensation of the fluid in a glass exchanger

-          Study of the thermodynamic heat pump cycle.

-          Measure the yield of a refrigeration cycle

-          Determination of the energy balances of the condenser, of the evaporator and the entire heat pump.

-          Comparison of the vapor compression cycle established by manipulation with the ideal cycle on pressure-enthalpy diagram.

Description

The STL100 bench allows the study of refrigerating cycle.

The bench is made of standard elements of a refrigerating circuit. The compressor will first elevate the pressure and the gas temperature (R134a). The water condenser will then transform this high pressure gas into high pressure liquid. The students visualize the transformation because the refrigerant condenses between the glass shell and the cooling coil

The high pressure liquid will then be stored in a bottle and then be sent towards the expansion valve. This one will change the state of the fluid, it will go from a high pressure liquid to a low pressure liquid. This low pressure liquid is now in the evaporator and will draw its energy on the air(and thus cooling it). At the outlet of the evaporator, the fluid is in the form of low pressure steam, it goes through a suction line accumulator and will be compressed once again by the compressor.

The robust design of this device makes it suitable for use in schools.
The equipment is set up on an Anodized aluminium frame on casters wheels. This gives it great strength and a flexibility of integration into your premises.
The manufacture of this equipment complies with the European standard for machinery manufacturing.
This equipment can be used alone or with other compatible equipment from our range (see last section of this document).

This unit is set up on a frame made of aluminum profile with 4 feet. It includes an electrical cabinet with main switch and differential circuit breaker.

1. Hermetic piston compressor 408W for a plan 7.2 °C / 55 °C Electrical power: 1/8 CV
2. High pressure manometer R134a with dual scale temperature / pressure
3. High pressure safety valve
4. Condenser water / R134a
- Resistant shell glass (pressure and temperature)
- Copper coil
- Volume of the exchanger: 1.19L
- Fluid circulation between the grille and the coil
- Rear lighting by neon (improves the visualization)
5. Water float flowmeter

• Electrical supply : 230 Vac – 50 Hz – 10 A
• Water supply : 1.5 L/min – 25 ° maxi