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Air Preheater, Superheater & Reheater simple learning. By Yuvi- Study Point

Hey everyone, today we are going to understand Air preheater, Superheater, and reheater in a simple or easy way.
So, without wasting any time lets get started.

Why air preheater is required?
  • The entire heat of the flue gases cannot be recovered by the help of an economizer. So, air preheater is also required to recover some of the heat through the flue gases.
  • The boilers efficiency is also increased by 1% with the help of air preheater.
{NOTE: If you guys don't know about the economizer then go through this link which is shown below. Because in this lecture video I have properly explained the economizer in a simple way.}

Economizer video link.
  


 And check out this blog if you want to simply know about it in writing.

https://www.blogger.com/u/1/blogger.g?blogID=8839271828242826805#editor/target=post;postID=1907393019648483083;onPublishedMen

The information about air preheaters?
  • Now, back to the point. The use of air preheater is more economical with pulverized fuel boilers or pulverized coal-fired boilers commonly we called these boilers as industrial or utility boiler.
  • The boilers are used because they generate thermal energy by burning of the pulverized coal.
What is pulverized coal?
  • Pulverized coal is the dust coal or powdered coal and it is as fine as the powder which is used on the face.
  • And this coal is further blown into the firebox. So, this is the working or function which is done in the pulverized fuel boiler. And this boiler is used with the air preheater.
  • This boiler is used because the use of air preheater becomes more economical with this boiler.
Superheaters & Reheaters
  • Superheater converts the wet superheated steam into dry superheated steam.
  • The superheaters and reheaters functioning are to superheat steam to the desired temperature.
  • As the steam which is coming from the boiler has some moisture. So, they remove the last traces of the saturated steam moisture by increasing its temperature sufficiently above the saturation temperature.
  • Last traces means 1% to 2% moisture.
The air preheater, Superheater & Reheater video, and link of the video.


https://youtu.be/k3mJ3ri6ne8

{To get more information, please go and check out my channel and this video.}

{& I hope you like this video}

Thank you!



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