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What are the differences in the performance indicators of air-cooled and direct-cooled refrigerators?

2023-04-21

1. Volume
With large volume and many compartments, air cooling has an absolute advantage in cooling capacity distribution. If direct cooling is adopted, there will be technical obstacles and it is not easy to realize.
2. Noise and energy consumption
Due to the air supply of the fan, the air-cooled freezer has a relatively average temperature inside the cabinet without a large temperature change, and the cooling effect is naturally better. However, considering the role of the fan and the complicated circuit design, the air-cooled freezer is Compared with direct cooling refrigerators, energy consumption and noise are higher.
3. Food drying problem
Because there is no electric fan, the direct cooling type will not generate additional noise and power consumption, and will not cause drying on the surface of the food due to blowing.

4. Freezer cooling speed
Because air cooling is forced circulation of cold air, the cooling speed is fast and the temperature balance is good. These are its inherent advantages, which cannot be compared with direct cooling. The direct cooling relies on natural convection, so the temperature balance is relatively poor, and the cooling rate is relatively low.
5. Frosting
The manual defrosting of the direct cooling is really annoying. The so-called micro-frost design is just that all the freezers use integral drawers to reduce the air flow in the open box to reduce frosting. Even so, defrosting is generally required for half a year. If the number of door openings is seldom, it can be extended, otherwise, it can be shortened. Frosting can also get worse if the door seal is bad or old. With the prolongation of use time, the number of defrosting will increase.
6. Smell

Air-cooled Odors will move through all compartments due to forced air circulation. At present, there are also some dual-system air-cooled freezers, which separate the freezing and refrigeration, and the situation is better.

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