Traditional Culture Encyclopedia - Traditional stories - What are the advantages and disadvantages of air-cooled frost-free and direct-cooled refrigerators?
What are the advantages and disadvantages of air-cooled frost-free and direct-cooled refrigerators?
Air-cooled has a fan, automatic defrost, no ice. Direct cooling, no fan, icing, manual defrost.
Direct-cooled is also known as cold air natural convection. There is an evaporator in the cold room, and the size of the evaporator is reasonably matched to the size of the room and the temperature requirement. The cooling method is through the natural convection of cold air to cool the food, the freezing speed is slower than the air-cooled.
And the air-cooled type is equipped with a finned evaporator and a set of air duct circulation components. The fan motor will pass through the evaporator cooled air inside the box to form an up and down circulation, to achieve the purpose of refrigeration. Since the air blowing in is a cold air stream, it will not lead to frosting due to absorption of moisture from the stored food. So the air-cooled type is also called frost-free type, in fact, frost-free just the inner wall surface without frost, the evaporator surface is still frost, but no manual defrosting but automatic defrosting.
Air-cooled refrigerator, Advantages: frost-free, precise temperature control, cooling uniformity ? Disadvantages: food is easy to dry and lack of water, noise, more expensive;
Direct-cooling refrigerator, Advantages: good preservation of freshness, low power consumption, low price ? Disadvantages: slower cooling speed.
Air-cooled refrigerator ?
Advantages: ?
1 No frost clean and fresh and save money ?
Air-cooled refrigerators will not always be wet inside like direct-cooled refrigerators, and food will not stick to each other. Moreover, an air-cooled refrigerator will have constantly circulating cold air, which is then filtered by a deodorizing system, and the smell inside will last ?
2Temperature precision cooling more evenly ?
Air-cooled refrigerators have more precise temperature control than direct-cooled refrigerators. Because direct-cooled refrigerators are prone to refrigeration dead spots, after all, the evaporator is affixed to the box, so the temperature tested at the temperature control point may vary compared to the actual temperature of the refrigerator's interior as a whole, which can affect the quality of food preservation. ?
Disadvantages: ?
1 Food can easily dry out and become dehydrated ?
There will be a constant circulation of cold air inside, which in turn will make the air humidity inside the refrigerator become lower, some food is easy to lack of water and then blown dry if you don't use the plastic wrap or plastic box to isolate it.
Direct cooling refrigerator ?
Benefits: ?
1 Better preservation of freshness ?
Direct-cooling refrigerators are normally what we call frosty refrigerators, and direct-cooling refrigerators we can enjoy more fresh food. ?
2Low power consumption and low price ?
Direct-cooled refrigerators are usually used in two-door economy products, direct-cooled structure is the evaporator is directly exposed in the box, the cost will be lower, and the noise is relatively small. ?
Disadvantages: ?
Cooling speed is slow, direct cooling refrigerator cooling speed is slow, will make people feel very inconvenient to use, and the evaporator is vulnerable to collision, scratch, corrosion caused by leakage affecting the life of the biggest drawback is that several times a year you must carry out manual defrosting. The biggest disadvantage is that manual defrosting must be carried out several times a year.
In summary, no matter from all aspects, I recommend that you choose the air-cooled refrigerator, good quality, more advanced technology, although the effect of freshness is not good, but now there is a fresh box to keep food fresh, I believe that with the progress of the times, the air-cooled refrigerator will replace all the direct cooling refrigerator.
2 More expensive and slightly noisier ?
The internal structure of air-cooled refrigerators is more complex compared to direct-cooled refrigerators, so the product is more expensive to manufacture and more expensive.
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