×
INTELLIGENT WORK FORUMS
FOR ENGINEERING PROFESSIONALS

Log In

Come Join Us!

Are you an
Engineering professional?
Join Eng-Tips Forums!
  • Talk With Other Members
  • Be Notified Of Responses
    To Your Posts
  • Keyword Search
  • One-Click Access To Your
    Favorite Forums
  • Automated Signatures
    On Your Posts
  • Best Of All, It's Free!
  • Students Click Here

*Eng-Tips's functionality depends on members receiving e-mail. By joining you are opting in to receive e-mail.

Posting Guidelines

Promoting, selling, recruiting, coursework and thesis posting is forbidden.

Students Click Here

Jobs

Thermodynamics of a heated enclosure

Thermodynamics of a heated enclosure

Thermodynamics of a heated enclosure

(OP)
Hi, I have recently purchased a 3d printer, printing ABS is however an issue due to uneven temperature gradients and uneven cooling of layers (it warps and cracks a lot), i would like to heat the enclosure of said printer to around 80 Degrees Celsius (between the Solid and the Creep temperatures of 70 and 90) and keep it constant, the motors, bearings, electronics etc etc will be insulated from the heat.

I'm trying to decide on what heater wattage/type i should use to achieve this the area of the heated enclosure will be around 0.2x0.3x0.4m, the walls are aluminium and the outside air is still. So far i have worked out that it would take 1.47KJ to raise the temperature from 30 to 80 degrees in an ideal system through Q=mCp(t1-T2), however how would i account for heat loss through the walls/roof etc and how would this offer guidance on what power of heater i will require?

Any information would be greatly appreciated.

Charlie

RE: Thermodynamics of a heated enclosure

You logged as an ME, so you should have had thermodynamics in college.

If nothing else, there are lots of heat transfer related entries in Wikipedia, like: http://en.wikipedia.org/wiki/Natural_convection

TTFN
FAQ731-376: Eng-Tips.com Forum Policies

Need help writing a question or understanding a reply? forum1529: Translation Assistance for Engineers


Of course I can. I can do anything. I can do absolutely anything. I'm an expert!
There is a homework forum hosted by engineering.com: http://www.engineering.com/AskForum/aff/32.aspx

Red Flag This Post

Please let us know here why this post is inappropriate. Reasons such as off-topic, duplicates, flames, illegal, vulgar, or students posting their homework.

Red Flag Submitted

Thank you for helping keep Eng-Tips Forums free from inappropriate posts.
The Eng-Tips staff will check this out and take appropriate action.

Reply To This Thread

Posting in the Eng-Tips forums is a member-only feature.

Click Here to join Eng-Tips and talk with other members!


Resources