Tom, it is very simple: physics. In order to have energy generated, work needs to be done. Work means a force multiplied by a distance. If distance is zero then there cannot be generated energy. Force is typically limited to the weight of the person. That is why, with the simple math of Potential Energy, I was able to estimate how deep your foot needs to sink (the distance over which the force works) multiplied by the force: avg human weight times gravity, in order to generate 7 Joule.
Hope this clarifies, Cor van de Water Chief Scientist Proxim Wireless Corporation http://www.proxim.com Email: [email protected] Private: http://www.cvandewater.info Skype: cor_van_de_water XoIP: +31877841130 Tel: +1 408 383 7626 Tel: +91 (040)23117400 x203 -----Original Message----- From: EV on behalf of tomw via EV Sent: Thu 6/25/2015 12:24 PM To: [email protected] Subject: Re: [EVDL] EVLN: pavegen.com tiles charge EV from human foottraffic (v) Yes, I agree with pavement the deformation is elastic so no net energy transfer. I don't think you need larger displacement though. The electromagnetic force is very strong so you can get significant energy from small displacement. But of course how much will depend on the actual mechanism the pavegen uses. -- View this message in context: http://electric-vehicle-discussion-list.413529.n4.nabble.com/Re-EVLN-pavegen-com-tiles-charge-EV-from-human-foot-traffic-v-tp4676441p4676507.html Sent from the Electric Vehicle Discussion List mailing list archive at Nabble.com. _______________________________________________ UNSUBSCRIBE: http://www.evdl.org/help/index.html#usub http://lists.evdl.org/listinfo.cgi/ev-evdl.org For EV drag racing discussion, please use NEDRA (http://groups.yahoo.com/group/NEDRA) -------------- next part -------------- A non-text attachment was scrubbed... Name: not available Type: application/ms-tnef Size: 3864 bytes Desc: not available URL: <http://lists.evdl.org/private.cgi/ev-evdl.org/attachments/20150625/d58fdec1/attachment.bin> _______________________________________________ UNSUBSCRIBE: http://www.evdl.org/help/index.html#usub http://lists.evdl.org/listinfo.cgi/ev-evdl.org For EV drag racing discussion, please use NEDRA (http://groups.yahoo.com/group/NEDRA)
