Traditional Culture Encyclopedia - Weather inquiry - What is the dehumidification of air conditioning and under what circumstances?
What is the dehumidification of air conditioning and under what circumstances?
The "dehumidification mode" of air conditioner is to make the whole air conditioner in dehumidification operation state. At this time, the fan of the indoor unit runs slowly, which is to facilitate the condensation of water vapor in the air into liquid. Generally, when the air conditioner reaches the set temperature in dehumidification mode, the outdoor machine will stop running to avoid the dew on the condenser from evaporating again.
Independent dehumidification mode is called the dehumidification principle of constant temperature air conditioning by people in the industry. Its basic principle is to reheat the air cooled by the evaporator to the original temperature and send it indoors, so that the indoor environment remains relatively constant when the humidity drops.
Extended data:
Dehumidification principle of air conditioning:
1. In the refrigeration process, the temperature of humid air will drop greatly after passing through the evaporator of the air conditioner, and the air humidity will be in a state of supersaturation. Excess water vapor will precipitate in the form of condensed water and condense on the fins of the evaporator, that is, "condensation". When the refrigeration mode reaches a certain equilibrium state, the air humidity will also drop to a certain level. ?
2. The indoor fan has been running at low speed, the compressor is started and stopped, and the refrigeration system does intermittent refrigeration cycle. Most of the generated cold energy is used to balance the latent heat of indoor air, that is, water vapor becomes condensed water. A small part is used to balance sensible heat, that is, to lower some indoor temperatures.
3. The fan blades are continuously circulated to keep the room temperature near the set value, and at the same time, a large amount of moisture in the air is removed to keep the indoor environment relatively constant when the humidity drops. The refrigeration of air conditioner is only used for condensation, and there is little control over temperature, so this dehumidification is called constant temperature dehumidification. ?
Baidu encyclopedia-air conditioning dehumidification
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