Tek-Tips is the largest IT community on the Internet today!

Members share and learn making Tek-Tips Forums the best source of peer-reviewed technical information on the Internet!

Register Log in
  • Congratulations MintJulep on being selected by the Eng-Tips community for having the most helpful posts in the forums last week. Way to Go!

Search results for query: *

  1. titwah

    93 % heat loss ? Is that reasonable ?

    Thanks guys/gals, now I have a better idea of what the U value should be for my estimation. Thanks
  2. titwah

    93 % heat loss ? Is that reasonable ?

    Thanks for all your replies. You guys are right, my U value is way too high. And, Montemayor raise a good point that if we keep the air flow arround the tank to minimum that it is reasonable to assume a thicker air film thickness e.g. 1mm, Now, use the thermal conductivity of 0.025 W/mC, I get...
  3. titwah

    93 % heat loss ? Is that reasonable ?

    It is a non-insulated steel tank, assuming no scale form in the initial heating. If I only use thermal conductivity of air 0.025 W/mC, and air thickness 0.2 mm. I got a high U value of 125 W/m2C. The tank heat transfer surface area is about 20 m2, which are all 4 walls of the tank 14'x40"x6'...
  4. titwah

    93 % heat loss ? Is that reasonable ?

    I know this probably a chem eng 101 question for you guys, but I need to help so that I can get a right heat exchanger for our processing tanks. I am currently working on aluminum anodizing line setup. When I calculate the heat loss for the processing tanks I got results, which reaaly puzzled...

Part and Inventory Search

Back
Top