Teaching equipment : Reversible heat pump

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Reversible heat pump

DESCRIPTION

The unit of reversible heat pump is delivered supplements, instrumented, with technical handbook and practical work.

Design, manufacture and industrial material.

The didactic interest is directed towards various levels and fields of studies.

Utilization of the refrigerant R134 has in accordance with the standards on the refrigerants.

Teaching equipment : Reversible heat pump - ERT 300

TECHNICAL SPECIFICATIONS

CIRCUIT REFRIGERANT

1. Hermetic compressor
• Commercial type
• Electric output 1/8CV
• Refrigerating power 402 W
- Temperature of condensation: + 55°C
- Temperature of evaporation: + 5°C
2. Compressing pressure gauge HP left
3. Exchanger with water
- Grill glass
- Serpentine coppers
- Arrival water network and evacuation
- Flow Measurement of water
- Measurement temperatures entry and left
4. Winnow inversion of the cycle
5. Tank of liquid
6. Dehydrator
7. Liquid indicator
8. Refrigerant flowmeter R134a
- A magnetic transmission
- Bill-poster with needle
- Stainless steel

9. Thermostatic pressure reducer
- An intern equalisation pressure
- Opening of calibration of flow
10. Bottle anti-blow of liquid
11. Pressure gauge LP
12. Instrument of safety
13. Exchanger with air
- A forced convection
- Tube coppers and aluminum wings
– Not wing: 4,2 mm
– Refrigerating Power: 325 W/D T 10°C
– Heat-transferring surface: 1,4 m ²

EXCHANGING WATER CIRCUIT

- Tank cold water
- Circuit of exchange
- Pump of recirculation
- Control valve flow
- Flowmeter
- Convector with air

PEDAGOGIC APPLICATIONS

• Study of the basic concept of a cold store in R134 A.
• Calculation of the coefficients of exchange.
Calculation of the heat balance
Calculation of the outputs
• Layout of the curves on enthalpic diagram.
Study of the thermodynamic cycle of a refrigerating machine with compression
• Performance evaluation of the unit:
- Outputs
- Energy Balances
• Study of the concept of reversibility of the cycle

Teaching equipment : Reversible heat pump - ERT 300 schema

INSTRUMENTATION
Sampling of temperature at each point of transformation
Voltmeter
Ammeter
Interfaces and connections for PC (in option)

UTILITIES
Electricity: 230 VAC mono - 50/60 Hz - 3 A

VOLUME OF INSTALLATION
Length: 1050 mm
Width: 800 mm
Height: 1500 mm
Weight: 70 kg

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Reversible heat pump

Didatec Technologie - ZA du Parc 42490 Fraisses - France - Tel : 33 (0)4 77 10 10 10 - Fax : 33 (0)4 77 61 56 49
E-Mail : didatec.technologie@wanadoo.fr