What's the difference between wet cooling and dry cooling?

The difference between wet cooling and dry cooling;

1, different humidity

Wet cold and dry cold, that is, wet cold and dry cold, literally, the main difference between them lies in the difference in humidity.

It's dry and cold, and the wind in the north is dry. Although the wind is very cool, but only the surrounding temperature drops, people's somatosensory temperature changes little.

Wet and cold, that is, the air temperature is low and the relative humidity is high, and the human body temperature is obviously lower than the ambient temperature.

2. Different effects on skin.

Dry and cold: due to low humidity and dry air, the skin will face serious water shortage.

Wet and cold: blood circulation slows down, disturbing the balance of water and oil, slow absorption of skin care products, and dry lines appear in air-conditioned environment.

Comparison between dry cooling and wet cooling

Judging from the somatosensory index, at the same low temperature, the somatosensory sensation in the south will be colder and more uncomfortable.

Compared with the south, there is less rain and snow in autumn and winter in the north, the air is relatively dry, the cold air can be fully blocked by clothes, and the drop of ambient temperature has little effect on human body temperature. In other words, in the cold north, as long as you put on more clothes, you can well resist the "physical attack" from the cold wind.

Winter in the south is always wet and cold, and the moisture content in the air is higher than that in the north, which makes the heat transfer in the body faster. No matter how much clothes you wear, you can't maintain your body temperature well, and the heat emitted by your body is quickly transferred to the air and dissipated. Therefore, students in the south often feel that no matter how they dress, they will feel cold. Only in this way can the coldness in the south be a "stroke of genius".

Take a chestnut as an example: the room temperature is higher than the water temperature in the swimming pool, but it will be colder when people go ashore after swimming. This is a truth.

People's subjective feeling of cold temperature is a kind of somatosensory temperature, which is different from the actual temperature, so although the temperature in the north is low, it will be very cold in the south.