Cold Room Accessories List – Kenya

Cold Room Refrigeration System

The temperatures in a cold room are maintained by a refrigeration system designed to meet its specific requirements. Key components of a refrigeration system include a compressor, condenser, expansion valve, evaporator coils, and circulation fans

Additionally, the system uses refrigerant gases, such as ammonia, freon, or CO₂, to achieve and maintain the desired temperature.

Cold Room Compressor

The type of compressor for a cold room is determined by the size of the cold room and its desired temperature. Reciprocating compressors use a piston to create positive displacement to move refrigerant gases at high pressure. They are used in cold rooms with a small capacity.

Screw compressors are less noisy and are used with cold rooms with a high capacity. They are smooth operating and considered to be the most reliable type of compressor.

The compressor is the heart of the refrigeration system. It compresses the refrigerant gas to increase its temperature before it enters the condenser.

Condenser

The condenser is a heat exchanger where heat from the refrigerant is transferred to a flow of water that goes to a cooling tower.

In the condenser, the refrigerant is under constant pressure, which is controlled and monitored. The hot gas of the refrigerant is cooled to a liquid.

Expansion Valve

In the expansion valve, the refrigerant expands, releases pressure, and experiences a temperature drop. The refrigerant leaves the expansion valve as a liquid vapor mixture. Expansion valves maintain the pressure differential and control the amount of refrigerant that enters the evaporator

Evaporator

In the evaporator, the refrigerant is at a lower temperature, evaporates, and absorbs heat. From the evaporator, the refrigerant enters the compressor where the process begins again.

Cool Fan

The cooling fan circulates the low temperature of the refrigerant in the evaporator into the cold room to help maintain the set temperature of the cold room. They ensure even distribution of the cold air and reduce any temperature variations.