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<DIV align=left><SPAN class=263213915-12042010><FONT face=Arial color=#0000ff
size=2>The cushioning effect may give the tile floor a softer feel, perhaps
like walking on a thin carpet? Just a thought.</FONT></SPAN></DIV></LI>
<LI>
<DIV align=left><SPAN class=263213915-12042010></SPAN><SPAN
class=263213915-12042010><FONT face=Arial color=#0000ff size=2>I see some
difficult technical issues to be resolved, however, like sand and dirt (and
sometimes liquids) between the moving plates. Perhaps a flexible
impervious cover (sealant) could be found that will last a few
years.</FONT></SPAN></DIV></LI>
<LI>
<DIV align=left><SPAN class=263213915-12042010><FONT face=Arial color=#0000ff
size=2>The idea is truly interesting and worth looking into, especially for
floors with very heavy foot traffic such as airports and some public
buildings. How about the New York Stock Exchange (Harness some of that
energy! Might mitigate the need for public power for the entire
city)?</FONT></SPAN></DIV></LI></OL>
<DIV dir=ltr align=left><SPAN class=263213915-12042010><FONT face=Arial
color=#0000ff size=2></FONT></SPAN> </DIV>
<DIV dir=ltr align=left><SPAN class=263213915-12042010><FONT face=Arial
color=#0000ff size=2>Glenn Haynes,</FONT></SPAN></DIV>
<DIV dir=ltr align=left><SPAN class=263213915-12042010><FONT face=Arial
color=#0000ff size=2>Middletown, CT </FONT></SPAN></DIV><BR>
<DIV class=OutlookMessageHeader lang=en-us dir=ltr align=left>
<HR tabIndex=-1>
<FONT face=Tahoma size=2><B>From:</B> bldg-sim-bounces@lists.onebuilding.org
[mailto:bldg-sim-bounces@lists.onebuilding.org] <B>On Behalf Of </B>Chris
Yates<BR><B>Sent:</B> Sunday, April 11, 2010 7:11 AM<BR><B>To:</B> 'Chris
Yates'; near_ej@yahoo.com; bldg-sim@lists.onebuilding.org<BR><B>Subject:</B> Re:
[Bldg-sim] Not a simulation question,but need help looking for vendor/
productdeveloper for piezoelectric application / floor
tiles.<BR></FONT><BR></DIV>
<DIV></DIV>
<DIV class=Section1>
<P class=MsoNormal><SPAN
style="FONT-SIZE: 11pt; COLOR: #1f497d; FONT-FAMILY: 'Calibri','sans-serif'">Neeraj,<o:p></o:p></SPAN></P>
<P class=MsoNormal><SPAN
style="FONT-SIZE: 11pt; COLOR: #1f497d; FONT-FAMILY: 'Calibri','sans-serif'"><o:p> </o:p></SPAN></P>
<P class=MsoNormal><SPAN
style="FONT-SIZE: 11pt; COLOR: #1f497d; FONT-FAMILY: 'Calibri','sans-serif'">I
apologise for my response. I do not wish it to reflect in any way on the
professionalism and help that this list endeavours to supply. I was out of
order, sorry.<o:p></o:p></SPAN></P>
<P class=MsoNormal><SPAN
style="FONT-SIZE: 11pt; COLOR: #1f497d; FONT-FAMILY: 'Calibri','sans-serif'"><o:p> </o:p></SPAN></P>
<P class=MsoNormal><SPAN
style="FONT-SIZE: 11pt; COLOR: #1f497d; FONT-FAMILY: 'Calibri','sans-serif'">I
seek to supply a more appropriate reply (and in doing so open myself to ridicule
because there are probably a couple of mistakes in my working out!). Here
goes:<o:p></o:p></SPAN></P>
<P class=MsoNormal><SPAN
style="FONT-SIZE: 11pt; COLOR: #1f497d; FONT-FAMILY: 'Calibri','sans-serif'"><o:p> </o:p></SPAN></P>
<P class=MsoNormal><SPAN
style="FONT-SIZE: 11pt; COLOR: #1f497d; FONT-FAMILY: 'Calibri','sans-serif'">The
feasibility of a piezoelectric system implemented as floor tiles does seem to
fly in the face of my understanding of Newton, Force and
Work.<o:p></o:p></SPAN></P>
<P class=MsoNormal><SPAN
style="FONT-SIZE: 11pt; COLOR: #1f497d; FONT-FAMILY: 'Calibri','sans-serif'"><o:p> </o:p></SPAN></P>
<P class=MsoNormal><SPAN
style="FONT-SIZE: 11pt; COLOR: #1f497d; FONT-FAMILY: 'Calibri','sans-serif'">Average
person has a mass of, say, 70kg.<o:p></o:p></SPAN></P>
<P class=MsoNormal><SPAN
style="FONT-SIZE: 11pt; COLOR: #1f497d; FONT-FAMILY: 'Calibri','sans-serif'"><o:p> </o:p></SPAN></P>
<P class=MsoNormal><SPAN
style="FONT-SIZE: 11pt; COLOR: #1f497d; FONT-FAMILY: 'Calibri','sans-serif'">Force
exerted by both feet, therefore = mass x gravity = 70 x 9.81 = 686.7Newtons or
343 per foot<o:p></o:p></SPAN></P>
<P class=MsoNormal><SPAN
style="FONT-SIZE: 11pt; COLOR: #1f497d; FONT-FAMILY: 'Calibri','sans-serif'"><o:p> </o:p></SPAN></P>
<P class=MsoNormal><SPAN
style="FONT-SIZE: 11pt; COLOR: #1f497d; FONT-FAMILY: 'Calibri','sans-serif'">For
the transfer of energy with every foot fall Work must be done to the tile. That
means it must undertake some deflection. The resulting work transferred to the
tile in Joules would be similar to the elastic potential energy equation: EPE =
˝ x kX<SUP>2</SUP> <o:p></o:p></SPAN></P>
<P class=MsoNormal><SPAN
style="FONT-SIZE: 11pt; COLOR: #1f497d; FONT-FAMILY: 'Calibri','sans-serif'"><o:p> </o:p></SPAN></P>
<P class=MsoNormal><SPAN
style="FONT-SIZE: 11pt; COLOR: #1f497d; FONT-FAMILY: 'Calibri','sans-serif'">Let’s
say the tile deflects 1mm under one foot. Therefore the spring constant k for
the tile would be 343350N/m and EPE of the tile whilst stood on would be 0.172
Joules.<o:p></o:p></SPAN></P>
<P class=MsoNormal><SPAN
style="FONT-SIZE: 11pt; COLOR: #1f497d; FONT-FAMILY: 'Calibri','sans-serif'"><o:p> </o:p></SPAN></P>
<P class=MsoNormal><SPAN
style="FONT-SIZE: 11pt; COLOR: #1f497d; FONT-FAMILY: 'Calibri','sans-serif'">This
is just EPE stored by the tile whilst loaded. The tile will probably consist of
the piezo device and a substrate which the energy will dissipate over. Let’s be
generous and assume 20% of that work is converted to electrical energy. We are
now talking about 0.034 Joules per foot fall. The rest will escape as heat.
Considering a human metabolism whilst walking will be of the order of 120 Watts
plus (Watts = Joules / second) the energy recovered through floor tiles would be
minimal.<o:p></o:p></SPAN></P>
<P class=MsoNormal><SPAN
style="FONT-SIZE: 11pt; COLOR: #1f497d; FONT-FAMILY: 'Calibri','sans-serif'"><o:p> </o:p></SPAN></P>
<P class=MsoNormal><SPAN
style="FONT-SIZE: 11pt; COLOR: #1f497d; FONT-FAMILY: 'Calibri','sans-serif'">I
hope this is useful.<o:p></o:p></SPAN></P>
<P class=MsoNormal><SPAN
style="FONT-SIZE: 11pt; COLOR: #1f497d; FONT-FAMILY: 'Calibri','sans-serif'"><o:p> </o:p></SPAN></P>
<P class=MsoNormal><SPAN
style="FONT-SIZE: 11pt; COLOR: #1f497d; FONT-FAMILY: 'Calibri','sans-serif'">Chris<o:p></o:p></SPAN></P>
<P class=MsoNormal><SPAN
style="FONT-SIZE: 11pt; COLOR: #1f497d; FONT-FAMILY: 'Calibri','sans-serif'"><o:p> </o:p></SPAN></P>
<DIV>
<DIV
style="BORDER-RIGHT: medium none; PADDING-RIGHT: 0cm; BORDER-TOP: #b5c4df 1pt solid; PADDING-LEFT: 0cm; PADDING-BOTTOM: 0cm; BORDER-LEFT: medium none; PADDING-TOP: 3pt; BORDER-BOTTOM: medium none">
<P class=MsoNormal><B><SPAN lang=EN-US
style="FONT-SIZE: 10pt; COLOR: windowtext; FONT-FAMILY: 'Tahoma','sans-serif'">From:</SPAN></B><SPAN
lang=EN-US
style="FONT-SIZE: 10pt; COLOR: windowtext; FONT-FAMILY: 'Tahoma','sans-serif'">
bldg-sim-bounces@lists.onebuilding.org
[mailto:bldg-sim-bounces@lists.onebuilding.org] <B>On Behalf Of </B>Chris
Yates<BR><B>Sent:</B> 10 April 2010 12:33<BR><B>To:</B> near_ej@yahoo.com;
bldg-sim@lists.onebuilding.org<BR><B>Subject:</B> Re: [Bldg-sim] Not a
simulation question, but need help looking for vendor/ product developer for
piezoelectric application / floor tiles.<o:p></o:p></SPAN></P></DIV></DIV>
<P class=MsoNormal><o:p> </o:p></P>
<P class=MsoNormal><SPAN
style="FONT-SIZE: 11pt; COLOR: #1f497d; FONT-FAMILY: 'Calibri','sans-serif'">Neeraj,<o:p></o:p></SPAN></P>
<P class=MsoNormal><SPAN
style="FONT-SIZE: 11pt; COLOR: #1f497d; FONT-FAMILY: 'Calibri','sans-serif'"><o:p> </o:p></SPAN></P>
<P class=MsoNormal><SPAN
style="FONT-SIZE: 11pt; COLOR: #1f497d; FONT-FAMILY: 'Calibri','sans-serif'">An
interesting application. Although I cannot help you with the piezoelectric
devices you seek, I do know a very reliable manufacturer of whoopee cushions. If
these could somehow be connected into a turbine generator system, then I’m sure
you could generate an equivalent amount of power. Other benefits
include:<o:p></o:p></SPAN></P>
<P class=MsoListParagraph style="TEXT-INDENT: -18pt; mso-list: l0 level1 lfo2"><![if !supportLists]><SPAN
style="FONT-SIZE: 11pt; COLOR: #1f497d; FONT-FAMILY: Symbol"><SPAN
style="mso-list: Ignore">·<SPAN
style="FONT: 7pt 'Times New Roman'">
</SPAN></SPAN></SPAN><![endif]><SPAN
style="FONT-SIZE: 11pt; COLOR: #1f497d; FONT-FAMILY: 'Calibri','sans-serif'">With
the deluxe “auto inflating” range, the cushions would remove air from the room
with every footfall – energy free ventilation!<o:p></o:p></SPAN></P>
<P class=MsoListParagraph style="TEXT-INDENT: -18pt; mso-list: l0 level1 lfo2"><![if !supportLists]><SPAN
style="FONT-SIZE: 11pt; COLOR: #1f497d; FONT-FAMILY: Symbol"><SPAN
style="mso-list: Ignore">·<SPAN
style="FONT: 7pt 'Times New Roman'">
</SPAN></SPAN></SPAN><![endif]><SPAN
style="FONT-SIZE: 11pt; COLOR: #1f497d; FONT-FAMILY: 'Calibri','sans-serif'">Whoopee
cushion technology is tried and tested, having been developed over the last 80
years.<o:p></o:p></SPAN></P>
<P class=MsoListParagraph style="TEXT-INDENT: -18pt; mso-list: l0 level1 lfo2"><![if !supportLists]><SPAN
style="FONT-SIZE: 11pt; COLOR: #1f497d; FONT-FAMILY: Symbol"><SPAN
style="mso-list: Ignore">·<SPAN
style="FONT: 7pt 'Times New Roman'">
</SPAN></SPAN></SPAN><![endif]><SPAN
style="FONT-SIZE: 11pt; COLOR: #1f497d; FONT-FAMILY: 'Calibri','sans-serif'">Zero
ODP & GWP<o:p></o:p></SPAN></P>
<P class=MsoListParagraph style="TEXT-INDENT: -18pt; mso-list: l0 level1 lfo2"><![if !supportLists]><SPAN
style="FONT-SIZE: 11pt; COLOR: #1f497d; FONT-FAMILY: Symbol"><SPAN
style="mso-list: Ignore">·<SPAN
style="FONT: 7pt 'Times New Roman'">
</SPAN></SPAN></SPAN><![endif]><SPAN
style="FONT-SIZE: 11pt; COLOR: #1f497d; FONT-FAMILY: 'Calibri','sans-serif'">Fun,
and a possible lasting attraction encouraging users back to the building for
years to come!<o:p></o:p></SPAN></P>
<P class=MsoNormal><SPAN
style="FONT-SIZE: 11pt; COLOR: #1f497d; FONT-FAMILY: 'Calibri','sans-serif'"><o:p> </o:p></SPAN></P>
<P class=MsoNormal><SPAN
style="FONT-SIZE: 11pt; COLOR: #1f497d; FONT-FAMILY: 'Calibri','sans-serif'">Best
regards<o:p></o:p></SPAN></P>
<P class=MsoNormal><SPAN
style="FONT-SIZE: 11pt; COLOR: #1f497d; FONT-FAMILY: 'Calibri','sans-serif'"><o:p> </o:p></SPAN></P>
<P class=MsoNormal><SPAN
style="FONT-SIZE: 11pt; COLOR: #1f497d; FONT-FAMILY: 'Calibri','sans-serif'">Chris
Yates<o:p></o:p></SPAN></P>
<P class=MsoNormal><SPAN
style="FONT-SIZE: 11pt; COLOR: #1f497d; FONT-FAMILY: 'Calibri','sans-serif'"><o:p> </o:p></SPAN></P>
<DIV>
<DIV
style="BORDER-RIGHT: medium none; PADDING-RIGHT: 0cm; BORDER-TOP: #b5c4df 1pt solid; PADDING-LEFT: 0cm; PADDING-BOTTOM: 0cm; BORDER-LEFT: medium none; PADDING-TOP: 3pt; BORDER-BOTTOM: medium none">
<P class=MsoNormal><B><SPAN lang=EN-US
style="FONT-SIZE: 10pt; COLOR: windowtext; FONT-FAMILY: 'Tahoma','sans-serif'">From:</SPAN></B><SPAN
lang=EN-US
style="FONT-SIZE: 10pt; COLOR: windowtext; FONT-FAMILY: 'Tahoma','sans-serif'">
bldg-sim-bounces@lists.onebuilding.org
[mailto:bldg-sim-bounces@lists.onebuilding.org] <B>On Behalf Of
</B>"near_ej@yahoo.com"<BR><B>Sent:</B> 10 April 2010 04:10<BR><B>To:</B>
bldg-sim@lists.onebuilding.org<BR><B>Subject:</B> [Bldg-sim] Not a simulation
question, but need help looking for vendor/ product developer for piezoelectric
application / floor tiles.<o:p></o:p></SPAN></P></DIV></DIV>
<P class=MsoNormal><o:p> </o:p></P>
<P class=MsoNormal><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: 'Arial','sans-serif'">Hello all,<BR><BR>We
are exploring the feasibility of deploying a piezoelectric application in a
large (approx. 2,00,000 sqft), 9 stories tall, public building coming up in
India.<BR>The building is being planned right now -- currently in the design
development phase rolling fast towards final design and tendering stage(s). It
is expected to see a very high foot fall on the ground and first floor levels
and that's where I need further help. Is there a company available to design and
sell an application or a product that will generate electricity -- perhaps using
some sort of floor tiles?<BR><BR>Any of you who could help me may write to me
directly since this is not a simulation
question.<BR><BR>Thanks,<BR>Neeraj<BR><BR>Neeraj Kapoor<BR>t:
+91.99581.70018<BR></SPAN><BR><BR>Send free SMS to your Friends on Mobile from
your Yahoo! Messenger. Download Now!
http://messenger.yahoo.com/download.php<o:p></o:p></P></DIV></BODY></HTML>