Products which turn biomass into heat efficiently tend to be gasifiers. >From TLUDs to 30kW+ hydronic heaters, the reason is the same: gasifier-combustors tend to operate more cleanly than their non-gasifier counterparts (woodstoves; open fires).
The GEK (not the GEK power pallet) may well serve as a biomass->heat converter if one omits the gas scrubber and uses their "flare" (or a better combustion/heat transfer chamber) to boil water. Recycling the exhaust steam to preheat fuel, then heat water would realize some degree of combined heat and power. As to the steam engine plans (not an actual engine)...A back of the envelope calculation, using his low number of 24% efficiency for condensing and recycling steam back to the boiler, yields something like 6.5 kg bone dry fuel/hour. The lower number of 12% for not recycling the steam would double that. The relevant question is whether the wobbly shaft drive really adds to the efficiency compared to traditional methods. Of course, you may also want to find out whether the cheap off the shelf parts you are supposed to locate yourself will handle 125psi, or whether the home version that runs off of a pressure cooker isn't really capable of 10hp. Steam power isn't new, and there's places that sell heavy castings with "ample safety factors". (http://www.reliablesteam.com/RSE/RSEengines.html) Bryce On Tue, May 14, 2013 at 6:42 PM, Kevin <[email protected]> wrote: > Dear Crispin > ----- Original Message ----- From: "Crispin Pemberton-Pigott" < > [email protected]> > To: "Stoves" > <[email protected].**org<[email protected]> > > > Sent: Tuesday, May 14, 2013 6:40 PM > > Subject: Re: [Stoves] Green Steam Engine > > > Kevin, >> Is that not what GEK does?? >> Crispin >> From BB9900 >> > > The GEK is a true Wood Gasifier, that takes in wood chips, and converts > them to "Engine Grade Gas". (Woodgas with very low tar content.) The > woodgas is sent to a Spark Ignition engine as fuel, to generate shaft > power. It does produce a small percentage of char (and ash), but the char > is pasically a waste product. Char production is fundamentally undesirable > in that it represents a waste of input energy. > > The Green Steam Engine runs on steam, as its energy source, to produce > shaft power. To get the steam, one needs a boiler, or a steam generating > solar system. If a boiler is used, the fuel can be anything that releases > heat on combustion... natural gas, fuel oil, biomass, etc. The fuel needs > an appropriate "burner system." A "Full Combustion Stove System" can be > used, to maximize the energy utilization of the fuel, or, where char > production is wanted, a "Char Producing Stove System" can be used. > > Any further questions, please let me know. > > Best wishes, > > Kevin > > > >> -----Original Message----- >> From: "Kevin" <[email protected]> >> Sender: "Stoves" >> <stoves-bounces@lists.**bioenergylists.org<[email protected]> >> > >> Date: Tue, 14 May 2013 18:35:42 >> To: Discussion of biomass cooking stoves<stoves@lists.** >> bioenergylists.org <[email protected]>> >> Reply-To: Discussion of biomass cooking stoves >> <[email protected].**org <[email protected]>> >> Subject: Re: [Stoves] Green Steam Engine >> >> ______________________________**_________________ >> Stoves mailing list >> >> to Send a Message to the list, use the email address >> [email protected].**org <[email protected]> >> >> to UNSUBSCRIBE or Change your List Settings use the web page >> http://lists.bioenergylists.**org/mailman/listinfo/stoves_** >> lists.bioenergylists.org<http://lists.bioenergylists.org/mailman/listinfo/stoves_lists.bioenergylists.org> >> >> for more Biomass Cooking Stoves, News and Information see our web site: >> http://stoves.bioenergylists.**org/ <http://stoves.bioenergylists.org/> >> >> >> >> >> ______________________________**_________________ >> Stoves mailing list >> >> to Send a Message to the list, use the email address >> [email protected].**org <[email protected]> >> >> to UNSUBSCRIBE or Change your List Settings use the web page >> http://lists.bioenergylists.**org/mailman/listinfo/stoves_** >> lists.bioenergylists.org<http://lists.bioenergylists.org/mailman/listinfo/stoves_lists.bioenergylists.org> >> >> for more Biomass Cooking Stoves, News and Information see our web site: >> http://stoves.bioenergylists.**org/ <http://stoves.bioenergylists.org/> >> >> > > ______________________________**_________________ > Stoves mailing list > > to Send a Message to the list, use the email address > [email protected].**org <[email protected]> > > to UNSUBSCRIBE or Change your List Settings use the web page > http://lists.bioenergylists.**org/mailman/listinfo/stoves_** > lists.bioenergylists.org<http://lists.bioenergylists.org/mailman/listinfo/stoves_lists.bioenergylists.org> > > for more Biomass Cooking Stoves, News and Information see our web site: > http://stoves.bioenergylists.**org/ <http://stoves.bioenergylists.org/> > >
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