Does Height Determine the Exhaust Capacity of Stainless Steel Chimneys?

"Does height determine the exhaust capacity of stainless steel chimneys?" There are many opinions on the Internet about the answer to this question. Some believe that the height of the chimney does not determine the exhaust capacity of stainless steel chimneys, while others believe that the height of stainless steel chimneys determines its exhaust capacity. The reason is that the higher the height, the smaller the air in the sky, so the smoke in the chimney rises faster. Some even believe that the exhaust capacity of stainless steel chimneys is related to the lower and upper size of the conical structure, so that the air pressure inside the chimney is much greater than the air pressure outside the chimney, and the exhaust capacity of the chimney is better.

I believe that so many statements have dazzled the readers. In fact, the higher the height of the chimney, the greater its exhaust capacity will be, but the reason is not because the air pressure at a high altitude is smaller. To understand why the higher the height, the better the smoke exhaust capacity of the stainless steel chimney, we must first understand the principle of smoke exhaust of stainless steel chimneys. First of all, the air in the chimney rises because of air buoyancy. When the air buoyancy is balanced with the air gravity, it can be regarded as a static state; similarly, when the air buoyancy is greater than the air gravity, it is in an ascending state. Secondly, the smoke discharged from the chimney is hot air with a very high temperature. The higher the temperature, the more it expands. At this time, the gravity per unit volume becomes smaller. Since the buoyancy has not changed, and the gravity of the hot air has become smaller, the smoke floats up and rushes up. When the temperature cools down after rushing up for a period of time, the smoke spreads horizontally. When we increase the height of the stainless steel chimney, because the higher the chimney, the more hot air there is in the chimney, the greater the total buoyancy it receives, the greater the pressure generated by the buoyancy, and the stronger the smoke exhaust capacity.

In the same way, if we do not make it higher but only increase the diameter of the chimney to make it have more hot air, can we also enhance the smoke exhaust capacity of the stainless steel chimney? The answer is no, because at this time, the buoyancy of the smoke increases while the gravity also increases, so it is meaningless, and therefore it does not help to enhance the smoke exhaust capacity. In addition, the chimney is made into a cone only because of architectural needs, which does not help the smoke exhaust capacity.

It is worth noting that the higher the stainless steel chimney is, the better it is. Generally, there will be an optimal height based on the smoke exhaust volume and diameter. If this height is exceeded, it will not only fail to enhance the smoke exhaust capacity but also waste costs.

Yunbai Environment specializes in the production and sales of: stainless steel chimneys, industrial chimneys, steel chimneys, fiberglass chimneys and other products. Website: www.szhuading.com