The phenomena we observe are different when a pile of firewood burns in a large environment than when it burns in a small environment. It's like having two sections of metal pipe. One section has infinite diameter and the other section has infinite diameter. an infinite diameter. The diameter is relatively small. If you place them vertically on top of a pile of firewood, what will you see? The fire under a smaller diameter metal pipe will burn more vigorously. It is the principle of fluid mechanics and follows the law of conservation of energy, that is: the total quantity of fluid flowing in the pipe per unit time = the total quantity of fluid flowing from the pipe per unit time. the flow rate (Vs) is: cubic meters/second; flow rate If expressed as mass flow rate (Ws), the general relationship between the two is: Ws=Vs*ρ If the amount of fluid flowing through the pipe per unit time is. constant, then the fluid velocity is inversely proportional to the cross section of the pipe. That is, when the flow rate is constant, the larger the pipe diameter, the lower the fluid flow rate, and vice versa. This phenomenon also follows another principle, which is the principle of thermodynamics: in nature, heat will spontaneously circulate in the direction of cold, that is to say: substances at high temperatures will naturally move in the direction of cooling. Small example: We will all observe that there is an obvious gas flow near the interior heater, even though we have sealed the windows well. Great example: the formation of hurricanes; These are produced during the process of flow and replenishment of cold and heat.
Actually, these “big smokestacks” in power plants are not smokestacks that emit exhaust gases as we understand them. His name is allr cooling. The power plants we usually see today are essentially thermal power plants. When producing thermal power, the unit requires a large amount of cooling water for cooling to ensure smooth power generation. However, without these cooling towers, a large amount of water would be consumed every day for heat dissipation and cooling.
So why do cooling towers emit “smoke”? After cooling the device with cold water. Water vapor is produced when the water in the cooling tower heats up. Another function of the cooling tower is to recycle water without wasting water resources. This uses the difference in air density inside and outside the cooling tower to form a pressure difference and then vents it. The majorityie water vapor and air cooled to form water droplets and fell into the tank. The water vapor that did not have time to cool escaped from the "big chimney" and formed the "smoke" that we see, which is in reality. It's just water vapor.
So why is it designed like that? Like a big speaker played backwards! In fact, previous power plants also had cooling towers. At the beginning of the design, all shapes were tried, including straight and diamond shapes. I finally settled on this big speaker look. That’s also a lot of factors to take into account. Since power plant cooling towers are usually built at a height of around 160 to 200 meters, this style is the most economical and has a stable structure.
The top is small and the bottom is thick, which cant accelerate the flow of Ke Ying and allow the air to carry away as much heat as possible. To make water use more efficient, this "chimney" does not eliminate waste gases, but the fine one next to it does! Don't get me wrong.