Specification of Vapour Compression Refrigeration Unit
Description of Vapour Compression Refrigeration Unit
The hermetically sealed refrigerant compressor incorporates a brushless three phase DC electric motor that is driven by a variable speed controller. Compressor speed and power supplied is displayed on the PC.
The refrigerant exiting the compressor passes through a condenser, receiver, filter, variable area flow meter, expansion valve and evaporator before retuning to the inlet side of the compressor. The condenser and evaporator are brazed plate heat exchanger and utilize a large common reservoir of water to minimize changes in water temperature during operation.
Technical Details of Vapour Compression Refrigeration Unit
|Refrigeration system Vapour-compression type||Refrigerant|
|Compressor speed range||2000 to 4400 rpm|
|Compressor supply||24V DC to speed controller of brushless 3 phase DC motor|
|Compressor rating||7.11 cm3 (0.434 cu in) for high evaporator temperature with 7.2°C rating point|
|Condenser||Brazed plate heat exchanger using water as heat transfer medium|
|Evaporator||Brazed plate heat exchanger using water as heat transfer medium|
|Water reservoir||Working capacity 400 litres|
|Temperature sensors||NTC Thermistor|
|Refrigerant flowmeter||Variable area flowmeter|