What Factors will Lead to Increased Power Consumption of Industrial Chillers?

What Factors will Lead to Increased Power Consumption of Industrial Chillers?

Generally speaking, the power consumption and cooling capacity of industrial chillers are closely related, but sometimes we find that the same structure and the same compressor have different power consumption and cooling performance. What factors will lead to the power consumption of the unit? What about the increase in power? Let’s analyze it.

Factors leading to increased power consumption of industrial chillers are as follows:

1. When the evaporating temperature decreases, the compression ratio will increase instead, and the energy consumption required for cooling will also increase accordingly. Therefore, it is necessary to reduce the evaporating temperature difference and increase the evaporating temperature, which can effectively save energy.

2. Once the condensing temperature rises, the compression ratio of the compressor will also increase, and the energy consumption per unit cooling capacity will increase. The study found that when the condensing temperature is between 25°C and 40°C, the energy consumption will increase by 3.2% for every degree of temperature increase.

3. After the industrial chiller has been in operation for a long time, a lot of oil scale has accumulated on the heat exchange surface between the condenser and the evaporator, which will also lead to an increase in the condensation temperature, but a decrease in the evaporation temperature, which means that you want to achieve the desired cooling effect , it is necessary to increase energy consumption.

4. A large amount of air accumulates in the condenser, causing the pressure in the condenser to rise. When the partial pressure of the condensed gas is 1.96105 Pa, the energy consumed by the compressor will also increase.

5. There is relatively thick scale on the wall of the condenser, so when the condensation temperature rises, the power consumption will also increase.

6. There is frost on the surface of the evaporator, which will affect the heat transfer coefficient, especially the smooth outer surface of the fin tube, which increases the heat exchange resistance and weakens the air flow between the fins.