[Digestion] Digestion Digest, Vol 5, Issue 14

[Arjun Gupta]

 > Hi all,
> >
> > This is more of a question about energy recovery from biogas than about
> > digestion itself. This is also a semi-hypothetical situation. Let's say
> > you have a school in New York State that has multiple dairy farms within
> > 3 miles. Peak natural gas use for heating the school is in
> > January/February; gas use drops to almost nothing in the summer. In
> > theory, if all of the dairy manure were recovered and brought to a
> > central digester near the school, the biogas produced could more than
> > cover the peak heating demand.
> >
> > But what to do with surplus biogas for the rest of the year? Generate
> > net-metered electricity, of course.
> >
> > Does such a system exist, where biogas is diverted from one energy use
> > to another (or some combination in between) depending on need?
> >
> > Thanks for any thoughts,
> >
> > Jason
> >
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> > Digestion at listserv.repp.org
> > http://listserv.repp.org/mailman/listinfo/digestion_listserv.repp.org
> >
>
>
> Hi Jason,


           You can use a combined cycle plant, for example suppose you
genrate enough biogas to generate say 1 Mw of electrical power the exaust
from the genrators could be used to produce another 100Kw or in your case
heating of the school. This heating system can then be shut down during
summers or simply turned off. There is one Transparent Energy Systems that
have implemented a similar system. www.tesplcogen.com this is their link.
You can sarch more on google.
  Regards
 Arjun Gupta