Calculating Flue Gas Losses, Shell Boiler

  1. I am currently performing an acceptance test for a newly installed gas fired shell boiler. I am following the British Standard "BS EN 12953-11:2003".

    I have encountered a problem with equation (8.5-2) found on page 16 of the document described above. This problem being that a value of enthalpy is subtracted from itself, thus equating it to zero. Surely if this was correct then a value of zero would simply suffice within that section of the equation. The value i decribe is highlighted in the two images attached.

    I have contacted the British Standard however it needs to run through a committee before they can produce an answer. Part of me does doubt my thoughts as it published ten years ago and a revised copy has not yet been published. Thought i'd best check with you guys though.

    Attached Files:

  2. jcsd
  3. SteamKing

    SteamKing 10,305
    Staff Emeritus
    Science Advisor
    Homework Helper

    It's probably some kind of typo.
  4. I've found that this document has many typos. You'd think a british standard that was published ten years ago and has been confirmed wouldn't contain silly little errors like that.
Know someone interested in this topic? Share this thead via email, Google+, Twitter, or Facebook

Have something to add?

Draft saved Draft deleted