A water-cooled screw chiller is a type of chiller that uses water as the cooling medium to remove heat from a process fluid or coolant. It is commonly used in industrial and commercial applications where water is readily available and the cooling load is relatively large.
The basic components of a water-cooled screw chiller include:
Compressor: This is the heart of the chiller and is responsible for compressing the refrigerant gas and moving it through the system. Screw compressors are commonly used in water-cooled chillers due to their high efficiency and reliability.
Condenser: The hot refrigerant gas from the compressor is condensed into a liquid by passing through a series of tubes that are cooled by water from a cooling tower or other water source.
Expansion Valve: The liquid refrigerant is then passed through an expansion valve, which reduces its pressure and temperature.
Evaporator: The low-pressure, low-temperature liquid refrigerant then flows through the evaporator, where it absorbs heat from the process fluid or coolant, causing it to evaporate and return to the compressor as a gas.
The main advantage of water-cooled screw chillers is that they are typically more efficient than air-cooled chillers and can handle larger cooling loads. However, they require a separate cooling tower or other water source, which can add to the initial cost and complexity of the system. They are commonly used in applications such as large commercial buildings, industrial processes, and district cooling systems.
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