Thermoelectric fan

Reply

  #1  
Old 01-26-15, 01:24 PM
Member
Thread Starter
Join Date: Jul 2014
Location: USA
Posts: 9
Received 0 Votes on 0 Posts
Thermoelectric fan

I have two questions. I'm trying to build a peltier driven fan for my coal stove. 1-What is the heat differential needed to generate enough current to run the fan? 2-I'm trying to run a 12V 1.5A DC motor, how do I figure out which peltier I need? Thank you for your anticipated response.
 
Sponsored Links
  #2  
Old 01-26-15, 02:04 PM
PJmax's Avatar
Group Moderator
Join Date: Oct 2012
Location: Northern NJ - USA
Posts: 54,550
Received 508 Votes on 478 Posts
Calculating performance for cold generation is tough but it's even tougher to calculate for power generation from heat. Special modules are required that can withstand the high heat. The link below is an excellent piece of information on power generation.
tetech.com/wp-content/uploads/2013/11/ICT97RJB.pdf

The parent site is here...... tetech.com/peltier-thermoelectric-modules
 
  #3  
Old 01-26-15, 05:12 PM
Member
Thread Starter
Join Date: Jul 2014
Location: USA
Posts: 9
Received 0 Votes on 0 Posts
PJmax, Thank you very much. This is really great information. Way more than I was able to find after looking for quite some time. I will let you know how this goes in the next days, or weeks, however long it takes. Thanks again, Jon
 
  #4  
Old 01-26-15, 08:58 PM
PJmax's Avatar
Group Moderator
Join Date: Oct 2012
Location: Northern NJ - USA
Posts: 54,550
Received 508 Votes on 478 Posts
Definitely let us know how you make out and if I can be of further help.
 
  #5  
Old 02-03-15, 06:09 AM
Member
Thread Starter
Join Date: Jul 2014
Location: USA
Posts: 9
Received 0 Votes on 0 Posts
Thermoelectric fan, for wood or coal stove.

I've gotten some very technical information from this forum, about peltiers and how they work. I'm still having trouble getting my fan to work. Is there anyone that has a parts list/schematic, of how to put one of these together. Also, what is the temperature differential required to generate enough power to run one of these things. Thanks
 
  #6  
Old 02-03-15, 08:02 AM
Temporarily Suspended
Join Date: Jul 2008
Location: NY
Posts: 10,986
Received 0 Votes on 0 Posts
put one of these together
to run one of these things
Do those things have a make & model #?
 
  #7  
Old 02-03-15, 09:09 AM
ray2047's Avatar
Member
Join Date: Mar 2006
Location: USA
Posts: 33,597
Received 13 Votes on 11 Posts
I have merged your threads since they are the same basic question. Please only one thread per question.
 
  #8  
Old 02-03-15, 09:19 AM
PJmax's Avatar
Group Moderator
Join Date: Oct 2012
Location: Northern NJ - USA
Posts: 54,550
Received 508 Votes on 478 Posts
You may have to fan cool the side facing away from the stove. There needs to be a difference in temperature from one side to the other.
 
  #9  
Old 02-03-15, 01:47 PM
Member
Thread Starter
Join Date: Jul 2014
Location: USA
Posts: 9
Received 0 Votes on 0 Posts
No there is no model #. Ecofan makes these units, but they are expensive. I'm trying to use a CPU heat sink, a motor with fan blades on it, a peltier, and a heat transfer unit. I can get the thing to turn, but then it slows down and stops. I have matched the peltier power output to the motor. But I'm still having trouble. If you go on Youtube, and type in Thermoelectric fan. You will find many examples of this, but no one will give you specifics.
 
  #10  
Old 02-03-15, 02:11 PM
Temporarily Suspended
Join Date: Jul 2008
Location: NY
Posts: 10,986
Received 0 Votes on 0 Posts
Unfortunately, I can't give you specifics either. Good luck.
 
Reply

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Thread Tools
Search this Thread
 
Ask a Question
Question Title:
Description:
Your question will be posted in: