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Shorts Recharge Your Cellphone on the Go
7/12/2013

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The Recharge Sleeping Bag is designed with thermoelectric energy-harvesting material that can harvest energy from a sleeping person. The company says that energy eventually will be used to charge a phone or tablet.(Source: Vodafone)
The Recharge Sleeping Bag is designed with thermoelectric energy-harvesting material that can harvest energy from a sleeping person. The company says that energy eventually will be used to charge a phone or tablet.
(Source: Vodafone)

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Charles Murray
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Re: energy harvesting
Charles Murray   7/18/2013 6:31:45 PM
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Thanks, vimulkumarp. How much current are we actually getting from applications like this one?

Ann R. Thryft
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Re: energy harvesting
Ann R. Thryft   7/18/2013 2:17:09 PM
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vimalkumarp, I remember you mentioning this thesis topic awhile ago in commenting on one of my aerospace material articles. We'd be very interested in hearing more about the project when you can share.

Pubudu
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Re: Don't think small
Pubudu   7/18/2013 2:12:24 PM
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True Ann,

If this method of harvesting energy and material is cost effective and efficient enough there will be lot of application of this theology. 

Ann R. Thryft
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Re: Don't think small
Ann R. Thryft   7/18/2013 1:59:37 PM
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This is a fun technology, and reminiscent of the Army boot and other wearable energy harvesting devices. Thanks for reporting on it.

vimalkumarp
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Re: energy harvesting
vimalkumarp   7/16/2013 4:45:23 AM
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@Elizabeth: I am working on a project similar to the one you mentioned, energy harvesting on planes. My PhD thesis is on Structrual health monitoring of aircrafts using wireless sensor networks which are powered by energy harvestign solutions. Yes there are many similarities in this and my work. Thanks a lot for mentioning this.

Elizabeth M
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Re: energy harvesting
Elizabeth M   7/16/2013 4:38:54 AM
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That sounds really interesting, vimalkumarp. Do you happen to be working on this project that I wrote about: http://www.designnews.com/author.asp?section_id=1386&doc_id=262725

What you're doing sounds really similar. You didn't comment on that story so maybe you didn't read it. Would love to hear your perspective about it, especially if your work is similar. I think this area really has potential.

Elizabeth M
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Re: Marketing was having fun
Elizabeth M   7/16/2013 4:15:37 AM
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Well I as avoiding the topic, TJ, Chuck and JimT, but I will agree! The "charging the voids" placement and explanation is a bit odd! But I imagine because they were showing the back of the shorts and the pocket, it made sense at the time. (Though I suppose they also got a chuckle out of it.) Now let's put this one to rest, shall we?? ;)

Elizabeth M
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Re: Power from Heat -- and from Smell-?
Elizabeth M   7/16/2013 4:09:53 AM
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Ha, JimT, now that might be an idea! You could be right about that, but I imagine in tests the designers would figure that out and make appropriate changes? One would hope anyway! If it's too uncomfortable, it will never go over very well.

vimalkumarp
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Re: energy harvesting
vimalkumarp   7/16/2013 12:26:33 AM
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Current in the order of microamps will not be of any electronic functional purpose ( i mean sourcing). We have to focus on currents in the order of milliamps.

Charles Murray
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Re: energy harvesting
Charles Murray   7/15/2013 6:45:18 PM
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Since you did your Ph.D. thesis partially on energy harvesting, vimulkumarp, can you tell us typically what level of current are we talking about here? Microamps?

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