Heat transfer thro Cardboard box
Heat transfer thro Cardboard box
(OP)
I wish to calc the heat transfer thro a cardboard box
consisting of a layer of outer liner 160 gram the fluting 160 gram then inner liner 160 gram. The distance from inner to outer liner is 6 mm. Are the standard heat transfer calculations adequate or are there unforeseen complications to consider
consisting of a layer of outer liner 160 gram the fluting 160 gram then inner liner 160 gram. The distance from inner to outer liner is 6 mm. Are the standard heat transfer calculations adequate or are there unforeseen complications to consider





RE: Heat transfer thro Cardboard box
For a practical purpose I believe that other variables than the cardboard box itself will influence on the result (whatever you want to obtain) : what you put in the box, corners and sealings, contents temperature, mass and form, other insulation in the box (airspace, paper, added insulation), surroundings (inhouse, outdoors, variable, constant, outer temperature history - time) etc.
At such it could be difficult to 'prove' that your figure is right.
What about the old engineering advice: Try it and see if it works? - Either with measuring miming your conditions, or as a practical application test?
RE: Heat transfer thro Cardboard box
Are you looking for a value for the material itself, or for a specific configuration made from the material?
RE: Heat transfer thro Cardboard box
I think you ARE the manufacturer, right? I did some searching on some sites I had bookmarked and found the following two links, which both give a k value of 0.21 W/mK:
http://ww
http
You could factor this into a standard conduction heat transfer equation. However, neither link gives a source for the information, nor any information about the makeup of the cardboard.
If you want a more precise measuremen, there is this link to a school lab project:
http://
You might be able to run this experiment with your product and get a better answer.
Patricia Lougheed
Please see FAQ731-376 for tips on how to make the best use of the Eng-Tips Forums.
RE: Heat transfer thro Cardboard box
<tg>
RE: Heat transfer thro Cardboard box
RE: Heat transfer thro Cardboard box
RE: Heat transfer thro Cardboard box
RE: Heat transfer thro Cardboard box
TTFN
Eng-Tips Policies FAQ731-376