Air-cooled Chiller Vs Water-cooled Chiller

By Author: monica
Total Articles: 10
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1. Air-cooled chillers and water-cooled chillers work differently:

The air-cooled chiller is directly circulated by the air mechanically. The condensing coil of the machine is directly cooled by atmospheric air that expels heat. The source of heat exchange is gas, and it is equipped with a special electric fan. The water-cooled chiller uses a cooling tower and a water pump to extract hot water for heat dissipation, so that the refrigeration process can be cycled. The source of heat exchange is water, and it is equipped with a special cooling tower.

2. The performance of air-cooled chiller and water-cooled chiller is different:

The heat transfer efficiency of water is far greater than that of air. The heat transfer temperature difference of the condenser of the water-cooled unit is generally 4~8°C, while the heat transfer temperature difference of the air-cooled unit is generally 8~15°C. Under the ambient temperature, the temperature of the cooling circulating water is lower than the outdoor air temperature, so the condensation temperature of the air-cooled unit in normal operation is much higher than that ...
... of the water-cooled unit, so that the air-cooled unit can operate under the same cooling capacity. , and its power consumption is larger than that of water-cooled units.

3. The cost of air-cooled chiller and water-cooled chiller is different:

In terms of initial investment in equipment, coupled with the scale of the same parameters, the volume of the air-cooled condenser equipment is larger, and the total equipment cost of the water-cooled chiller is about 20% lower than that of the same specification air-cooled chiller; in terms of operating costs, water-cooled The cooling efficiency of the machine is high, and the power consumption of the unit operation is small. The power consumption of the water-cooled chiller with the same cooling capacity is 30% lower than that of the air-cooled machine.

4. Air-cooled chillers and water-cooled chillers have different mobility:

The air-cooled chiller can be moved, while the water-cooled chiller needs to be equipped with a water tower and a pool outside. Therefore, if you want to use a water-cooled chiller, you need to provide a machine room. When the building cannot provide a machine room, the air-cooled chiller is more suitable. .

5. The maintenance difficulty of air-cooled chiller and water-cooled chiller is different:

The shell-and-tube condenser used in the water-cooled unit has a small impact on the heat exchange efficiency within a certain range of dirt accumulation, so the performance of the unit will decline less with the generation of dirt, the cleaning cycle is longer, and the relative maintenance cost will be lower. . The heat exchange efficiency of the air-cooled chiller is greatly affected by the accumulation of dust and scale, and it needs to be cleaned regularly. Since the air-cooled chiller is generally installed outdoors and the operating environment is poor, maintenance is more troublesome.

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