Results 1 to 2 of 2
  1. Article: kettle reboiler problem

    You can view the page at

    [link Point to another website Only the registered members can access]

    See More: Article: kettle reboiler problem

  2. # ADS
    Spons Circuit
    Join Date
  3. #2
    Kettle Reboiler for Batch Distillation:
    The TEMA type is say: AEU or simple vessel with U bundle
    The Duty of Kettle is to generate required Boilup.
    So your boil up is the max one in the batch operational sequence.

    Your prob thus is :
    Heating media: Steam at 2 bar(g) say 120 deg C
    Process Fluid temp: This changes throughout the batch take the worst case that is last operation temperature
    Heat Duty: To vaporise a pool of liquid at some rate say 2000 kg/hr This also then decides the Heat duty in Kcal/hr

    Now the heat duty you say is only 25000 looks very small . Is it a small dia column because for water it means 25000/550= 50 kg vaporization? for organics it means about 250 kg/hr vaporization

    As far as ur question goes
    ur critical flux is: 345500 Kca/hr/m2
    Duty is: 25000 Kcal/hr
    for flux to be over than 345500 your area is a fraction?
    also the U value for steam and org liq or even aq solutions shall be about 350-500 W/m2C
    Thus use less U value and get higher area so that flux cal is lower than critical one
    may be use hot water at 90 deg C?

  4.    Sponsored Links



Similar Threads

  1. Article: Probleme of high temperature in reboiler
    By TAGRART in forum Home Articles
    Replies: 0
    Last Post: 04-02-2014, 12:59 AM
  2. Heating Coil o Kettle Reboiler thermal calc
    By ADMADM in forum Engineering Software Tutorial
    Replies: 8
    Last Post: 02-01-2012, 10:09 AM
  3. kettle reboiler problem
    By marchese85 in forum General Engineering
    Replies: 0
    Last Post: 11-04-2010, 12:47 PM
  4. Kettle reboiler design
    By sniperel in forum Process Simulation Community
    Replies: 6
    Last Post: 12-12-2009, 02:31 AM
  5. Horizontal kettle reboiler
    By raulelite in forum Mechanical Engineering
    Replies: 9
    Last Post: 08-10-2009, 01:01 PM

Tags for this Thread


Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts