The grand perpetual motion machine symptoms, Not really - what you need to see is that there will be losses and leakages from this "grand system" and to keep it running you need to reduce your energy losses to minimum and have practically no N losses. At some scale your dream will come true. Then of course comes the cost --> where you need to decide if it is worth it afterall. best wishes chanakya
> Okay... since we're on a roll here, tell me if you think a scenario > similar to the following sounds TOO FAR OUT: > > animal manure goes into an in-ground plug/flow digester; > spent digestate goes to both sediment pond and aerobic compost pile; > sediment pond produces duckweed and nutrient for hydroponic grow beds; > duckweed is harvested and dried for animal feed; > methane produced runs an engine; > engine coolant keeps digester warm (radiator coils wrap around digester); > engine runs generator to produce electricity; > electricity lights and runs pumps for hydro > .... what have I forgotten? > > > > > _______________________________________________ > Digestion mailing list > > to Send a Message to the list, use the email address > [email protected] > > to UNSUBSCRIBE or Change your List Settings use the web page > http://lists.bioenergylists.org/mailman/listinfo/digestion_lists.bioenergylists.org > > for more information about digestion, see > Beginner's Guide to Biogas > http://www.adelaide.edu.au/biogas/ > and the Biogas Wiki http://biogas.wikispaces.com/ > > > -- > This message has been scanned for viruses and > dangerous content by MailScanner, and is > believed to be clean. > > -- Dr. Hoysall Chanakya Centre for Sustainable Technologies (Assoc. Faculty at Centre for Infrastructure, Sustainable Transport and Urban Planning (CiSTUP) and Centre for Contemporary Studies) Indian Institute of Science, Bangalore 560 012 ph 91-80-2293 3046; fax-91 80 2360 0683 -- This message has been scanned for viruses and dangerous content by MailScanner, and is believed to be clean. _______________________________________________ Digestion mailing list to Send a Message to the list, use the email address [email protected] to UNSUBSCRIBE or Change your List Settings use the web page http://lists.bioenergylists.org/mailman/listinfo/digestion_lists.bioenergylists.org for more information about digestion, see Beginner's Guide to Biogas http://www.adelaide.edu.au/biogas/ and the Biogas Wiki http://biogas.wikispaces.com/
