> If that ideas so practical and good why they are not use in real mass scale? > > http://vimeo.com/2638558
I thought this one was more sane. Interesting idea. Poor horse.. > > http://www.youtube.com/watch?v=ztFDqcu8oJ4 This is wrong at so many levels - First, energy of density Compressed Air 17 Wh/l 34 Wh/kg (not including tank) compare that to gasoline 9,700 Wh/l 12,200 Wh/kg Then the little detail about what it costs to convert fuel - say coal - to electricity - then another conversion to 120Vac - then another to mechanical energy - then another to compress air - then convert compressed air to mechanical energy. energy x loss x loss x loss x loss x loss = a lot less energy. Compressed air is expensive. And if you buy into the CO2 BS it will generate more per HP delivered to the road. > Compressed air is one of the most expensive sources of energy in a plant. The > overall efficiency > of a typical compressed air system can be as low as 10-15%. For example, to > operate a 1 hp air > motor at 100 psig, approximately 7-8 hp of electrical power is supplied to > the air compressor. I'm sure it is profitable for the 'venture vultures' -------------------------------------------------------------------------------- Karl Schmidt EMail [email protected] Transtronics, Inc. WEB http://xtronics.com 3209 West 9th Street Ph (785) 841-3089 Lawrence, KS 66049 FAX (785) 841-0434 A clear conscience is usually the sign of a bad memory. -------------------------------------------------------------------------------- ------------------------------------------------------------------------------ The Planet: dedicated and managed hosting, cloud storage, colocation Stay online with enterprise data centers and the best network in the business Choose flexible plans and management services without long-term contracts Personal 24x7 support from experience hosting pros just a phone call away. http://p.sf.net/sfu/theplanet-com _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
