Comments on: Cooling & Heating Backpack v1 (Peltier Prototype) http://maxweisel.com/blog/cooling-heating-backpack-v1-peltier-prototype/ Sun, 22 Aug 2010 13:44:51 +0000 hourly 1 http://wordpress.org/?v=3.0.1 By: David Timberlake http://maxweisel.com/blog/cooling-heating-backpack-v1-peltier-prototype/comment-page-1/#comment-60 David Timberlake Mon, 05 Jul 2010 16:02:50 +0000 http://maxweisel.com/blog/?p=15#comment-60 Good work MAX. I like it. Need something similar for bike riding in Houston high heat, high humidity conditions...thinking in terms of body movement acting as impetus for refrigeration engine... Article of potential interest to you--related topic Design and performance of personal cooling garments based on three-layer laminates Journal Medical and Biological Engineering and Computing Journal Article http://www.springerlink.com/content/qxm1918314k17327/ Good work MAX. I like it. Need something similar for bike riding in Houston high heat, high humidity conditions…thinking in terms of body movement acting as impetus for refrigeration engine…

Article of potential interest to you–related topic

Design and performance of personal cooling garments based on three-layer laminates
Journal Medical and Biological Engineering and Computing
Journal Article
http://www.springerlink.com/content/qxm1918314k17327/

]]> By: Max Creations Blog Archive Cooling amp Heating Backpack v1 | Outdoor Ceiling Fans http://maxweisel.com/blog/cooling-heating-backpack-v1-peltier-prototype/comment-page-1/#comment-38 Max Creations Blog Archive Cooling amp Heating Backpack v1 | Outdoor Ceiling Fans Sun, 31 May 2009 13:27:38 +0000 http://maxweisel.com/blog/?p=15#comment-38 [...] Max Creations Blog Archive Cooling amp Heating Backpack v1 Posted by root 3 hours ago (http://maxweisel.com) Sep 6 2008 after seeing an instructable on digg for making a usb powered fridge then solder the wires of each fan to those of the peltier units in parallel please note comment moderation is enabled and may delay your comment register middot log in middot Discuss  |  Bury |  News | Max Creations Blog Archive Cooling amp Heating Backpack v1 [...] [...] Max Creations Blog Archive Cooling amp Heating Backpack v1 Posted by root 3 hours ago (http://maxweisel.com) Sep 6 2008 after seeing an instructable on digg for making a usb powered fridge then solder the wires of each fan to those of the peltier units in parallel please note comment moderation is enabled and may delay your comment register middot log in middot Discuss  |  Bury |  News | Max Creations Blog Archive Cooling amp Heating Backpack v1 [...]

]]> By: heating cooling utah http://maxweisel.com/blog/cooling-heating-backpack-v1-peltier-prototype/comment-page-1/#comment-35 heating cooling utah Sun, 11 Jan 2009 19:11:01 +0000 http://maxweisel.com/blog/?p=15#comment-35 This project lokks fairly simple and fun. Is it also cheap? This project lokks fairly simple and fun. Is it also cheap?

]]> By: B6 http://maxweisel.com/blog/cooling-heating-backpack-v1-peltier-prototype/comment-page-1/#comment-23 B6 Fri, 03 Oct 2008 07:01:57 +0000 http://maxweisel.com/blog/?p=15#comment-23 What's the final cost on this project? What’s the final cost on this project?

]]> By: Sandman http://maxweisel.com/blog/cooling-heating-backpack-v1-peltier-prototype/comment-page-1/#comment-21 Sandman Mon, 29 Sep 2008 16:18:34 +0000 http://maxweisel.com/blog/?p=15#comment-21 Noticed this on Hackaday, kudos for the idea. One thing that came to mind when I was reading this was that you might want to reverse the fans and have them suck air away from the Peltier units/het sinks. If you have warmed air flowing from the heat sinks into the surrounding space, it's going to heat the metal plate and mitigate the cooling effect. if you reverse the airflow you only get ambient air (which is cooler, presumably) in contact with the metal plate. Another solution would be to isolate the metal plate from the airflow with something. Noticed this on Hackaday, kudos for the idea.

One thing that came to mind when I was reading this was that you might want to reverse the fans and have them suck air away from the Peltier units/het sinks.

If you have warmed air flowing from the heat sinks into the surrounding space, it’s going to heat the metal plate and mitigate the cooling effect. if you reverse the airflow you only get ambient air (which is cooler, presumably) in contact with the metal plate.

Another solution would be to isolate the metal plate from the airflow with something.

]]> By: Michael Hoskins http://maxweisel.com/blog/cooling-heating-backpack-v1-peltier-prototype/comment-page-1/#comment-20 Michael Hoskins Mon, 29 Sep 2008 14:16:07 +0000 http://maxweisel.com/blog/?p=15#comment-20 Cautionary note: do not wear this into a public transport terminal (bus, subway, air) unless you LIKE answering endless questions about why you'd build a hoax device and take it to such a place. That aside, this project is extremely awesome. I'm not understanding though, does this cool just the user, or is the space inside large enough to contain other items? Cautionary note: do not wear this into a public transport terminal (bus, subway, air) unless you LIKE answering endless questions about why you’d build a hoax device and take it to such a place.

That aside, this project is extremely awesome. I’m not understanding though, does this cool just the user, or is the space inside large enough to contain other items?

]]> By: peter http://maxweisel.com/blog/cooling-heating-backpack-v1-peltier-prototype/comment-page-1/#comment-18 peter Sun, 28 Sep 2008 19:24:28 +0000 http://maxweisel.com/blog/?p=15#comment-18 This looks really neat! The biggest challenge the human body faces in exercise is heat management, so if you could use this when exercising to keep your body cool, you could certainly accomplish quite a bit. I would think a good modification might be to have a vest or something similar made that water could be pumped through, and have this water cooled with the backpack, to keep the whole torso cooled. Might be a fun challenge! Great work This looks really neat! The biggest challenge the human body faces in exercise is heat management, so if you could use this when exercising to keep your body cool, you could certainly accomplish quite a bit. I would think a good modification might be to have a vest or something similar made that water could be pumped through, and have this water cooled with the backpack, to keep the whole torso cooled. Might be a fun challenge! Great work

]]> By: Gal http://maxweisel.com/blog/cooling-heating-backpack-v1-peltier-prototype/comment-page-1/#comment-17 Gal Sun, 28 Sep 2008 10:35:30 +0000 http://maxweisel.com/blog/?p=15#comment-17 so does it work?? how clod does it get ??? so does it work?? how clod does it get ???

]]> By: bw http://maxweisel.com/blog/cooling-heating-backpack-v1-peltier-prototype/comment-page-1/#comment-16 bw Sun, 28 Sep 2008 07:37:14 +0000 http://maxweisel.com/blog/?p=15#comment-16 I would love to see you walk into an airport wearing this thing. I would love to see you walk into an airport wearing this thing.

]]> By: Peltier-based cooling/heating backback - Hack a Day http://maxweisel.com/blog/cooling-heating-backpack-v1-peltier-prototype/comment-page-1/#comment-15 Peltier-based cooling/heating backback - Hack a Day Sun, 28 Sep 2008 04:23:53 +0000 http://maxweisel.com/blog/?p=15#comment-15 [...] Weisel] recently created a Peltier-based cooling/heating system that fits into a backpack. The system uses two Peltier units, each running at 91.2 watts, with computer heat sinks mounted [...] [...] Weisel] recently created a Peltier-based cooling/heating system that fits into a backpack. The system uses two Peltier units, each running at 91.2 watts, with computer heat sinks mounted [...]

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