Draft (boiler)

In a water boiler, draft is the difference between atmospheric pressure and the pressure existing in the furnace or flue gas passage.[1] Draft can also be referred to as the difference in pressure in the combustion chamber area which results in the motion of the flue gases and the air flow.[2]

  1. ^ McGraw, Hill (2003). Dictionary of Scientific and Tech Terms. USA: Mc Graw Hill Publications. ISBN 9780070452701.
  2. ^ Babcox & Wilcox (1975). Steam/ its generation and use (38 ed.). USA: The Babcock & Wilcox Company. p. 17-1.