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What are the factors that affect the cooling capacity of the chiller?

Apr 20,2023 | TOPTEK

Usually, the cooling capacity of the chiller we often say actually refers to the nominal cooling capacity of the chiller, which refers to the cooling capacity when the ambient temperature is 35 degrees and the outlet water temperature of the chiller is 7 degrees. . So what are the factors that affect the cooling capacity of the chiller?

1. The power of the compressor: the greater the power, the greater the cooling capacity. According to the size of the model, choose compressors with different mechanisms. For example, small chillers choose piston type, medium chillers choose scroll type, and large chillers choose screw type. , centrifuges, etc.

2. Low coolant content: too little coolant content will cause the equipment to not absorb oil and reduce the cooling effect. The solution to low coolant content: check the coolant frequently to see if the coolant level is kept between high and low, and add coolant in time when the coolant is too low.

3. Water temperature (different evaporation temperature, different cooling capacity): the higher the water temperature, the greater the cooling capacity, and the lower the water temperature, the smaller the cooling capacity.

4. The filter screen is blocked: after the filter screen is blocked, the dust on the condenser will accumulate more and more, which will affect the cooling effect of the refrigeration equipment over time. If things go on like this, it may even cause the refrigeration equipment to fail to cool. The solution to the clogging of the filter screen: clean the filter screen regularly or irregularly.

5. Lack of freon: some early refrigeration equipment using freon as a refrigerant, after a long time of use, freon will volatilize and affect the cooling effect. Solution: Remind you that freon may be harmful to the human body. In this case, you should find a professional maintenance company to add it.

6. Power supply voltage: The voltage is low or the power of the refrigeration equipment is not enough.

7. Pump power: The amount of circulating water directly affects the heat transfer rate.

8. Evaporator: The form of the condenser is divided into water tank coil type, shell and tube type, stainless steel plate type, etc.

9. Heat conduction material: copper tube for heat transfer.

10. Pipeline: There is a problem with the pipeline.

What are the factors that affect the cooling capacity of the chiller? Let me share with you here. In addition, when the chiller is actually running, due to the difference between the ambient temperature and the chilled water outlet temperature, the cooling capacity and power consumption of the compressor will also change. In other words, the cooling capacity of the chiller is also affected by the outlet water temperature and the ambient temperature.

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