Important: Use custom search function to get better results from our thousands of pages

Use " " for compulsory search eg:"electronics seminar" , use -" " for filter something eg: "electronics seminar" -"/tag/" (used for exclude results from tag pages)
Ask More Info Of  A Seminar Ask More Info Of A Project Post Reply  Follow us on Twitter
09-08-2012, 11:00 AM
Post: #1
Seminar on Boiler Draught
Seminar on Boiler Draught

.ppt  boiler draught.ppt (Size: 740.5 KB / Downloads: 161)


Draught means the force needed to draw. with regard to the boiler the requirement is to provide an adequate supply of the furnace grate to maintain the proper combustion of fuel, to draw the resulting gases from system and to discharge these flue gases from the chimney to the surrounding. it requires a static pressure difference to be maintained at the grate which causes the flow of air and gases to take place this static pressure difference maintained is called boiler draught means the force needed to draw. With regard to the boiler the requirement is to provide draught or in short draught.
Boiler Draught

…a force required to
Maintain air flow through a fire bed to aid complete combustion
Draw the resulting hot gases through the system
Remove the products of combustion and discharge to atmosphere

Classification of draught

We can classify the draught into:
NATURAL DRAUGHT: this is produced with the help of chimney; hence, it is called as chimney draught.
h= 353H [ 1/t1-(m+1/m t2)
ARTIFICIAL DRAUGHT: artifical draught produced by the fan steam jet.

What is “CHIMNEY”…

A chimney is a structure for venting hot flue gases or smoke from a boiler, stove, furnace or fireplace to the outside atmosphere. Chimneys are typically vertical, or as near as possible to vertical, to ensure that the gases flow smoothly, drawing air into the combustion in what is known as the stack, or chimney, effect. The space inside a chimney is called a flue. Chimneys may be found in buildings, steam locomotives and ships. In the United States, the term smokestack (colloquially, stack) is also used when referring to locomotive chimneys or ship chimneys, and the term funnel can also be used….


NATURAL DRAUGHT: this is the produced with the help of chimney. hence, it is also called as chimney draught. The difference in static pressure by the chimney is produced due to the difference in weight of column of the hot gases inside the chimney and the weight of equal column of cold air outside the chimney.

Artificial draught

ARTIFICIAL DRAUGHT: modern power plants require a draught of the order of 25-300 mm. of water column whereas it is convenient to produce a draught more then 40mm. Of water column with the help of chimney because it is neither economical nor convenient to build a chimney of considerable height for larger amount of draught.
Rating Seminar on Boiler Draught Options
Share Seminar on Boiler Draught To Your Friends :- Seminar Topics Bookmark
Post Reply 

Marked Categories : draught systems ppt, boiler air draft system ppt, boiler seminar report on ppt, boiler, seminar report on boiler in ppt, seminar on boiler, seminar about boiler, classification of boiler draught ppt, seminar topic of draught in boiler, seminar on application of draught in boiler, boiler draught, draught ppt, boiler draught project report, boiler draught system seminar report, seminar on boiler draught, seminar on boiler draughft, artificial boiler draught, seminar on boiler ppt, chimney draught ppt, introduction to chimney and draught ppt, ppt on boiler draught, artificial draught in power plant, boiler draught project, boiler draught download, boiler draught ppt,

Quick Reply
Type your reply to this message here.

Image Verification
Image Verification
(case insensitive)
Please enter the text within the image on the left in to the text box below. This process is used to prevent automated posts.

Possibly Related Threads...
Thread: Author Replies: Views: Last Post
  Green Engine seminar report mechanical engineering 42 72,553 24-03-2015 10:09 PM
Last Post: tchaskar
  SEMINAR ON SHIP WITH WIND MILLS ppt study tips 1 897 19-03-2015 01:24 PM
Last Post: Guest
  A SEMINAR ON UNDER WATER WINDMILL PPT study tips 8 12,548 11-03-2015 12:19 PM
Last Post: mkaasees
  LIST OF SEMINAR TOPICS FOR FINAL YEAR STUDENTS seminar surveyer 6 40,010 26-02-2015 02:54 PM
Last Post: Guest
  List of mechanical Seminar topics4 computer science crazy 34 44,812 19-02-2015 06:45 PM
Last Post: Abdul Azeez A K
  NanoTechnology (Download Full Seminar Report) Computer Science Clay 74 74,548 19-02-2015 03:58 PM
Last Post: Guest
  mechanical engineering seminar reports and presentations downloads list1 Electrical Fan 9 31,107 06-02-2015 02:47 PM
Last Post: Guest
  i-VTEC ENGINE Seminar Report project girl 4 6,540 20-01-2015 12:01 PM
Last Post: Guest
  Hydroforming Techniques : Seminar Report and PPT seminar post 1 560 31-12-2014 07:06 PM
Last Post: Guest
  latest mechanical seminar topics 2011 & 2012 project topics 43 126,803 12-11-2014 11:03 AM
Last Post: Guest
This Page May Contain What is Seminar on Boiler Draught And Latest Information/News About Seminar on Boiler Draught ,If Not ...Use Search to get more info about Seminar on Boiler Draught Or Ask Here