Air conditioners dehumidify faster than refrigeration not necessarily!

Air conditioners dehumidify faster than refrigeration not necessarily!

Recently, there has been a net article saying that choosing the dehumidification mode when using the air conditioner will cooler and save electricity faster than the cooling mode. Is this true? The reporter consulted experts in the air-conditioning industry and found that this may not be the case.

Air conditioners dehumidify faster than refrigeration? not necessarily!

　　 The net article says that the air conditioner chooses dehumidification to be cooler and save electricity

According to the article, an Australian woman found in a customer’s home that it’s very simple to keep the room cool at all times, just change the air-conditioning mode from "COOL" (meaning air-conditioning, displayed as snowflake graphics) to "DRY" (meaning Dehumidification, displayed as a water drop graphic) on it! Customers also said that after switching to dehumidification mode, not only can the indoor temperature be reduced, but also electricity can be saved! After the woman returned home, she changed the air-conditioning mode at home to dehumidification mode. Unexpectedly, the effect was better than COOL (air-conditioning) mode. Just turn on a large air-conditioner at home, and the room would be extremely cool; moreover, the dehumidification mode eliminated In addition to the humidity in the room, it will not make people feel a little hot and humid, very comfortable. More importantly, there is no need to adjust the air conditioner temperature too low (after the temperature is lower than 23°C, as long as the temperature is lowered by one degree, 10 times the electricity will be used to generate electricity), because the dehumidification mode can already lower the indoor temperature.

　　 This web post quickly spread on the Internet. So, is this magical air conditioning secret reliable? The reporter contacted Master Zhu, an expert at Uehara TCL Air Conditioning Laboratory.

　　 Dehumidification mode may not save more power

　　 Master Zhu believes that there is a misunderstanding in the article. In dehumidification mode, the set temperature is fixed at 24°C and the wind speed is fixed at low wind. If the cooling mode is also set to 24°C and low wind operation, the effect is the same as the dehumidification mode. But the cooling mode z* low temperature of the air conditioner can be set to 17°C. As long as the cooling mode of the air conditioner is adjusted below 24°C, the cooling effect will be better than the dehumidification mode. At the same time, the adjustment of the wind speed will also affect the quality of the cooling effect. For example, if the temperature is set to 24℃ in the cooling mode and the wind speed is adjusted to medium or high wind, the cooling effect will be better than that in the dehumidification mode, because the exchange at high wind speed The heat is relatively large.

　　 So, is there any situation where the cooling effect of dehumidification mode is better than that of cooling mode? Master Zhu said that if the temperature is set higher than 24°C in the cooling mode and low wind operation is used, the cooling efficiency of the air conditioner will be lower than that in the dehumidification mode.

　　 As for the dehumidification mode mentioned in the net article, it will save electricity compared with the cooling mode, which is not necessarily the case. The principle of air-conditioning dehumidification is the same as the principle of refrigeration. Dehumidification actually condenses water vapor through refrigeration. The dehumidification mode is a solidified program operation, which is fixed at the cooling temperature of 24℃ and the wind speed is low wind. If the same air conditioner is selected, the cooling mode is set to 24℃ and the wind speed is low wind, then the actual power consumption and the dehumidification mode are selected There is no difference.

　　 Master Zhu suggested to the public that when using air conditioners, it is more appropriate to set the temperature at 26°C or 27°C. At this time, both energy consumption and comfort are relatively moderate. If the set temperature is too low, the power consumption will increase; if the set temperature is too high, the cooling effect will not be achieved.