Tom, David, list... http://nexterra.ca/news/100817.html
Greg Manning On Tue, Jun 26, 2012 at 6:03 PM, Tom Miles <[email protected]> wrote: > David, > > Thanks or the clarification. The jacket heat is used for drying the fuel. > Part of the engine exhaust heat is fed to the boiler along with producer > gas. So you have a producer gas fired boiler that is augmented with > recovered heat from the engine exhaust. > > Tom > > -----Original Message----- > From: [email protected] > [mailto:[email protected]] On Behalf Of David > Coote > Sent: Tuesday, June 26, 2012 3:29 PM > To: [email protected] > Subject: [Gasification] Levelised Energy Cost and electrical efficiency > > Thanks for the info, Tom. > > The GCV/NCV item is always a fertile source of confusion between various > countries. I quote efficiency on NCV. So the efficiency I used for > calculating the LEC used NCV which was derived from GCV (dry basis) taking > into account moisture content and water from the combustion reaction. > > On another topic, any idea how they're getting their heat? Is it off a > water > jacket on the engine? > > Cheers > > David > > > > > > Message: 13 > Date: Mon, 25 Jun 2012 17:44:02 -0700 > From: "Tom Miles"<[email protected]> > To: "'Discussion of biomass pyrolysis and gasification'" > <[email protected]> > Subject: Re: [Gasification] Levelised Energy Cost calculation for UBC > 2MWe gasifier > Message-ID:<[email protected]> > Content-Type: text/plain; charset="us-ascii" > > David, > > > > They offset high priced gas plus a CO2 tax of about CAN$2.75/GJ (?) so the > products are electricity, heat (~12-20% of campus demand), and CO2 tax > offset. It is really a heating plant with a 2 MWe generator. > > > > If the plant electrically efficiency is based on GCV then 24% is probably > too high. It's usually in the 14-17% range. > > > > From their published profile: > > Electricity Production 15,300,000 kWh/yr > > Annual Gas Displacement 86,000 MMBtu/yr (from 9,600 pph steam [now > increased > to 20,000 pph]). > > Avoided CO2 Emissions 4,500 tonnes yr > > Avoided CO2 Emissions (Car Equivalent) 1,100 cars/yr > > Wood Fuel Required 12,500 bone dry tonnes/yr > > > > > > Tom > > > _______________________________________________ > Gasification 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/gasification_lists.bioenerg > ylists.org > > for more Gasifiers, News and Information see our web site: > http://gasifiers.bioenergylists.org/ > > > > _______________________________________________ > Gasification 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/gasification_lists.bioenergylists.org > > for more Gasifiers, News and Information see our web site: > http://gasifiers.bioenergylists.org/ >
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