Go Back   EcoModder Forum > EcoModding > EcoModding Central
Register Now
 Register Now
 

Reply  Post New Thread
 
Submit Tools LinkBack Thread Tools
Old 06-27-2012, 04:07 PM   #11 (permalink)
EcoModding Lurcher
 
mort's Avatar
 
Join Date: Dec 2010
Location: Los Angeles
Posts: 273
Thanks: 117
Thanked 72 Times in 54 Posts
Quote:
Originally Posted by ConnClark View Post
Just remember that the heat is going to be dumped on the other side of the Peltier and its going to be about ten times as much as you remove from the cool side.
It's not quite that bad. Commercial Peltier coolers have a COP of about 1.25, so to cool your seat by removing 125 watts requires 100 watts from the battery and you'll need to dump 225 watts - you dump 1.8 times as much as you cool.
-mort

  Reply With Quote
Alt Today
Popular topics

Other popular topics in this forum...

   
Old 07-26-2013, 12:17 PM   #12 (permalink)
Cyborg ECU
 
California98Civic's Avatar
 
Join Date: Mar 2011
Location: Coastal Southern California
Posts: 4,135

Black and Green - '98 Honda Civic DX Coupe
Team Honda
90 day: 61.78 mpg (US)

Black and Red - '00 Nashbar Custom built eBike
90 day: 3671.43 mpg (US)
Thanks: 1,471
Thanked 1,150 Times in 764 Posts
There are several threads on this topic, but I'll update this "somewhat-less-old" one. Two interesting videos of applications of this concept.

(1) A 10 grade girl who won second prize in a science fair with a "hollow flashlight" charged by her hand (I think she claimed 50% efficiency):


(2) A guy charging a 12v deep cycle battery with TEGs and a biomass heat source (what's important is that he is doing it DIY):


I could see tackling some version of these with my 11 year old engineering-interested daughter in a couple years. I plan for the "Black & Green" Civic to still be around too, so why not?

-james
__________________


See my car's mod & maintenance thread and my electric bicycle's thread for ongoing projects. I will rebuild Black and Green over decades as parts die, until it becomes a different car of roughly the same shape and color. My minimum fuel economy goal is 55 mpg while averaging posted speed limits. I generally top 60 mpg. See also my Honda manual transmission specs thread.

  Reply With Quote
Old 07-26-2013, 05:36 PM   #13 (permalink)
Hydrogen > EV
 
Join Date: Apr 2012
Location: NW Ohio, United States
Posts: 2,003

Other - '08 Ford Escape Base
90 day: 25.59 mpg (US)

2012 Mustang 3.7/M - '12 Ford Mustang 3.7
Team Mustang
Team Ford
90 day: 35.19 mpg (US)

2000 Deersight - '00 Honda Insight Base
Team Honda
90 day: 58.02 mpg (US)

2000 Insight - '00 Honda Insight
90 day: 78.71 mpg (US)
Thanks: 958
Thanked 376 Times in 276 Posts
This is cool stuff. Clearly there are weaknesses to the technology at this point, but cool nonetheless.

So who took first if that only got her second? Lol
__________________





Best Tanks:
Mustang - 54.83 mpg (US) at the Green Grand Prix
Insight - 82.91966 mpg (US) over 818.5 miles.
  Reply With Quote
Old 07-27-2013, 12:24 AM   #14 (permalink)
Cyborg ECU
 
California98Civic's Avatar
 
Join Date: Mar 2011
Location: Coastal Southern California
Posts: 4,135

Black and Green - '98 Honda Civic DX Coupe
Team Honda
90 day: 61.78 mpg (US)

Black and Red - '00 Nashbar Custom built eBike
90 day: 3671.43 mpg (US)
Thanks: 1,471
Thanked 1,150 Times in 764 Posts
Quote:
Originally Posted by UltArc View Post
This is cool stuff. Clearly there are weaknesses to the technology at this point, but cool nonetheless.

So who took first if that only got her second? Lol
I don't know what first place was. Sorry.

Talked over these tiles and applications with my daughter, teaching her how they work using these videos. She wants to try and build stuff. We're going to try making a version of the LED flashlight first. We'll adapt the design for a different heat source and with extended wiring to power--get this--little doll house lamps. She is almost 11 and she spends lots of time making realistic little furniture and food items for her doll house. We figure some working lamps, powered by some heat source (hot water bottle?) would be a great way to get a first lesson in the technicals and materials.

Found a list of tiles:
Standard TEC's : Sorted by Imax : CustomThermoelectric.com

Thought I'd share (for the hell of it).
__________________


See my car's mod & maintenance thread and my electric bicycle's thread for ongoing projects. I will rebuild Black and Green over decades as parts die, until it becomes a different car of roughly the same shape and color. My minimum fuel economy goal is 55 mpg while averaging posted speed limits. I generally top 60 mpg. See also my Honda manual transmission specs thread.

  Reply With Quote
Old 07-27-2013, 02:46 AM   #15 (permalink)
EcoModding Lurker
 
Join Date: Apr 2013
Location: United States
Posts: 34

The Dakota - '99 Dodge Dakota R/T
90 day: 16.4 mpg (US)

The Honda - '88 Honda CRX DX
90 day: 47.43 mpg (US)
Thanks: 0
Thanked 5 Times in 5 Posts
That's the most adorable science project ever.
  Reply With Quote
Old 08-08-2017, 04:15 AM   #16 (permalink)
EcoModding Wannabee
 
LioNiNoiL's Avatar
 
Join Date: Sep 2011
Location: fabulous Las Vegas
Posts: 11
Thanks: 4
Thanked 4 Times in 3 Posts
I have a dozen old 40mm square Peltier cooling/heating units (see photo) from 12-volt heater/coolers, and no additional specifications. They are yours with which to experiment for $4 each (with free shipping), $26 for all twelve (also free shipping), or any other amount n for $4n^(3/4) to the nearest quarter-dollar, with free shipping and a moneyback guarantee, and a one-dollar penalty for mis-calculating the cost.

__________________
"There's no tellin' where the money went"
-- Robert Palmer, "Simply Irresistible" (1988)
  Reply With Quote
Reply  Post New Thread


Thread Tools




Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2017, vBulletin Solutions, Inc.
Content Relevant URLs by vBSEO 3.5.2
All content copyright EcoModder.com