What to do if the power goes out and it's too hot

Many people don’t like summer because the weather is too hot, especially at noon. It is impossible to walk on the road. You will sweat profusely if you move. They just want to stay indoors with air conditioning and fans. But sometimes if there is a power outage, the air conditioner and fan cannot be used, and the indoor temperature will become even more stuffy. So what should you do if it is too hot during a power outage?

Since there is a power outage, the air conditioner and fan cannot be turned on, and we can only use the principles of physics to cool the room.

1. Open and close doors and windows reasonably. Many people think that they need to open doors and windows wide to keep cool in the hot summer, but this is not true. During the day, when the outdoor temperature is high and the doors and windows are wide open, the sunlight and heat radiation rush into the room along with gusts of hot air, making it generally hot both indoors and outdoors. If you open the doors and windows to ventilate in the cool mornings and evenings to allow air to circulate, and close the doors and windows during the day, especially at noon, to isolate the invasion of hot air from outside, and draw light-colored curtains to block the sunlight and reflect heat radiation, you can make the room cooler. Through actual observation, the author lives in Chengdu. Although the outdoor temperature reaches over 30 degrees in the afternoon, the indoor temperature can still be maintained at around 28 degrees by using the above method.

2. Balcony greening and courtyard greening. Greening the balcony courtyard and planting trees and flowers not only has high ornamental value, but also has the function of regulating the microclimate, making the air fresh, cool and pleasant. Because green plants can both provide shade and cool down the environment by evaporating water from their leaves. Data shows that planting grapes, morning glories, creepers and some flowers and plants on the courtyard balcony can reduce the temperature of the attached wall by 5℃ to 14℃ and the indoor temperature by 2℃ to 4℃.

3. Water evaporation cools down. For example, when you mop the floor with a wet mop indoors, the vaporization absorbs heat and can help lower the room temperature.

The above three methods are commonly used methods to cool down the room. It is recommended that you use multiple methods together, the effect will be much better.