Alex and all,
That is an excellent observation about the "steady state" similarities.
But having a "regular fire" that is not steady state (as in rising to
a high fire and then progressively dying back) as the source of the
heat is not necessarily any better or any worse.
The issue about the TLUD is that its "steady state" can be as a nice
stable cooking fire, but it can also be steady as providing a raging
flame. This can be easily done with simple forced air (FA) methods
such as fans and blowers into the primary and secondary air inlets.
And the discussion is currently focused on heaters for
developed/affluent/with-reliable-electricity societies.
Steady does not mean small nor large. If the high mass stoves need
high heat, the TLUDs can provide it. And with the evident sizes of
these high mass stoves/heaters, there is sufficient room for TLUD fuel
chambers (pyrolytic reactors to create the gases) to have both
intensity and duration (such as for 45 minutes to 2+ hours) with a
single batch.
The high mass heater-stoves is an application or use of the heat. I
have much to learn about that, but what is known about TLUDs as the
possible devices to provide the heat gives us great confidence that
the combination of TLUDs and high mass heaters can have great potential.
And when we have a few successes in the affluent countries, that will
spur us on to do things for the developing societies in cold climates.
Paul
--
Paul S. Anderson, PhD
Known to some as: Dr. TLUD Doc Professor
Phone (USA): 309-452-7072 SKYPE: paultlud Email: [email protected]
www.gtz.de/de/dokumente/giz2011-en-micro-gasification.pdf (Best ref.)
Quoting Alex English <[email protected]>:
Paul,
The TLUD configuration has it's advantages and disadvantages, like
any system. One advantage is it's steady state energy release. High
mass heaters strive for a similar result. It seems a bit redundant
to pair the two. Perhaps it depends on other considerations like a
desire for char or an available particulate fuel supply.
There are some folks doing fine work at the Masonry Heater Association.
http://mha-net.org/
They have done a lot on emissions, efficiency and durability.
They have looked into Down feed rocket configurations.
I'm not sure if they have quantified losses between firings, or
seasonal efficiency.
Its a simple concept with lots of technical details.
What do you see as the advantages of combining these two approaches?
Alex
On 10/7/2011 10:02 AM, Paul S. Anderson wrote:
Dear Jote and all,
Your problem (opportunity) is about space heating. And you seem to want
biomass rather than fossil or other heat sources. So you should consider
all heat-transfer options with biomass, not just latch onto Rocket or
some other technology that makes heat.
For the climate of the Los Angeles area, why not consider a high-mass
stove? It gets hot and then radiates heat for a long time.
A new friend of mine in Massachusetts, Chas (prononced as in Jazz)
Hinckley has a design for a high mass heater and we are discussing a
moderately large TLUD combustor to provide the heat.
We are looking for other people who might be specifically interested in
this high mass heating option with a TLUD heat source.
If anyone is interested, please get in touch with me and Chas to have
some off-list discussions. (Chas is not subscribed to the Stoves Listserv.)
Yes, you can put a Rocket burner into a high mass device, but I do not
deal with that.
Paul S. Anderson, PhD
Known to some as: Dr. TLUD Doc Professor
Phone (USA): 309-452-7072 SKYPE: paultlud Email: [email protected]
www.gtz.de/de/dokumente/giz2011-en-micro-gasification.pdf (Best ref.)
Quoting Jote Mahern <[email protected]>:
Hello All,
My name is Jote and I am looking for some guidance on the subject of
building a rocket stove to heat an industrial space near 64th and San
Pablo.
This space is home to the PLACE for sustainable living (People Linking
Art
Community and Ecology). We are a nonprofit working as a community
resiliency laboratory and business incubator. We opened in May. It is
starting to get pretty cool inside. Any help/advice is appreciated. I am
heading up the project and have experience with cob and am excited to
put it
to good use.
I am hoping to locate plans and someone who is willing to go over them
with
me.
If anyone is interested in joining the work party for the build out
that is
definitely welcome as well.
Hope to hear from you soon!
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