Things I find strange when autumn comes

November 1st
There's something strange about autumn.
I wonder why most people feel uncomfortable with direct air conditioning, yet feel comfortable with an autumn breeze of around 24 degrees Celsius?
In summer, the average temperature (average radiant temperature) of the six sides around you is quite high, at over 6°C. In contrast, the cool air from the air conditioner is quite low, at around 30°C at the outlet. The temperature is neutralized the further away you are from the air conditioner, but as long as the wind force is still strong,
I think it's usually around 20 degrees Celsius.
The process of heat being removed (received) by wind is called convection.
On the other hand, the process of receiving (receiving) heat in the form of electromagnetic waves from the six sides is called radiation.
The simplest indicator of perceived temperature is
(Room temperature (convection) + average radiation temperature) ÷ 2
This is called the operative temperature.
A situation where this effective temperature is around 24°C is the most ideal situation in which you are least likely to feel either hot or cold.
However, even with the same working temperature, convection at 24℃ and radiation at 24℃ are better.
This is overwhelmingly more comfortable than a situation where the temperature is different, such as 20°C for convection and 28°C for radiation. This is especially common knowledge in winter, and it is important to strengthen insulation.
The more the temperature increases, the closer this temperature difference approaches zero.
I don't think this concept has been emphasized much when it comes to air conditioning. But I think it's the same when it comes to air conditioning. The average radiant temperature drops as autumn approaches. The wind temperature is almost the same as the average radiant temperature. I think humans find this situation "comfortable."
To achieve a similar situation indoors in summer, we must do whatever we can.
Sun protection, high insulation of the roof, and finally, not painting the exterior walls black.
I think it's around here.
Whether it's summer or winter, when there is a large discrepancy between the average radiant temperature and the room temperature, the brain thinks, "Is it hot or cold?!" and we feel uncomfortable. This is something I've always said in my lectures, and I don't think it's wrong.