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Basic Cycle Refrigeration Trainer

Basic Cycle Refrigeration Trainer
Basic Cycle Refrigeration Trainer
Product Code : CEI126
Brand Name : Chhabra Engineers
Product Description

Basic Cycle Refrigeration Trainer

Familiarisation with refrigerant circuit
- Familiarisation with functioning and operating behaviour of individual components
- Comparison of operation with expansion valve or capillary tubes with different lengths
- Underfilling or overfilling with refrigerant
- Thermodynamic Cyclic process on a log p-h diagram

Technical Description
 The most common form of refrigerating installations is a refrigeration system with compressor. The physical effect of absorbing heat from the environment during transition from liquid to gaseous state of the refrigerant is used (evaporation enthalpy).

Specification

1] Investigation of a refrigeration system with different expansion elements
[2] Refrigerant circuit consisting of hermetic compressor, condenser, evaporator and expansion element
[3] Condenser and evaporator: finned tube heat exchangers, both fitted with a fan for a better heat exchange
[4] Expansion valve and capillary tubes with different lengths as expansion elements
[5] Transparent pipes and sight glass to watch the phase transitions of the refrigerant
[6] Collector for underfilling respectively overfilling the system with refrigerant
[7] Sensors measure pressures and temperatures
[8] CFC-free refrigerant R134a
[9] Compressor fitted with two pressure switches
[10]  software for data acquisition via PCI, runs under Windows XP
Compressor speed: 480...975rpm
Evaporator
- cooling surface: 3.62m²
- refrigerating capacity at 3°C air temperature (chamber) / DT1=13°C: 460W
- 2 fans
- power consumption: 12W
- speed: 2200rpm
- max. airflow rate: 125m³/h Condenser
- heat exchanger surface: 2.5m²
- fan airflow rate: 570m³/h
Sensor measuring ranges
- speed: 0...1000rpm
- pressure: -1...15bar
- temperature: -20...80°C
- flow rate: 2...15g/s
- power: 0...600W


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