Sent: Wed, Jan 1, 2014 7:46 pm
Subject: Re: [Vo]:acoustic conversion of heat into electricity
In reply to David Roberson's message of Wed, 1 Jan 2014 14:47:04 -0500 (EST):
Hi,
[snip]
>The main item of interest is how efficient is the conversion of heat energy
into sound and ul
In reply to David Roberson's message of Wed, 1 Jan 2014 14:47:04 -0500 (EST):
Hi,
[snip]
>The main item of interest is how efficient is the conversion of heat energy
>into sound and ultimately electricity. The high efficiency that they mention
>likely is in response to them using the waste heat
My guess is that the system uses a small battery to generate some sound
waves. Next a flow heat produced by a heat source is used to amplify the
sound waves and these amplified waves produces extra electricity.
Harry
On Wed, Jan 1, 2014 at 3:24 PM, AlanG wrote:
> This device is based on lo
This device is based on lots of past development, and possibly other
industrial devices. Think of it as a Stirling engine where the piston is
a thermoacoustic phonon in the enclosed gas. There's a good background
summary of related work at LANL in 2002:
http://www.lanl.gov/thermoacoustics/Pubs
s degraded form.
>
> How does that particular process compare to thermoelectric generators
> which are its competition?
>
> Dave
>
>
>
> -Original Message-
> From: H Veeder
> To: vortex-l
> Sent: Wed, Jan 1, 2014 1:11 pm
> Subject: [Vo]:acoustic co
: vortex-l
Sent: Wed, Jan 1, 2014 1:11 pm
Subject: [Vo]:acoustic conversion of heat into electricity
Silicon Salley Start-up Powers Homes with Sound Waves
<>
http://www.forbes.com/sites/williampentland/2013/12/10/silicon-valley-start-up-company-powers-homes-with-sound-waves/
NASA
Our local gas company is offering $0.50 per therm which would convert to
roughly 25 kwhr at 90% efficency ($0.02/kwhr). The local power company is
charging $0.10 per kwhr or five times as much.
http://www.nirvana-es.com/system.html
Silicon Salley Start-up Powers Homes with Sound Waves
<>
http://www.forbes.com/sites/williampentland/2013/12/10/silicon-valley-start-up-company-powers-homes-with-sound-waves/
NASA Glenn Technology May Soon Power American Households
http://www.nasa.gov/press/2013/december/nasa-glenn-technology-
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