Make electricity with wood!

[dedeleco]

Modern gasifiers are also neglected and cannot be found in individual trade !!
Doing it yourself from scratch seems like a big job, even more complex than using Peltier modules.
Should we sell boilers with good combustion which are also gasogenic according to the conditions?

The ideal would be the boiler which makes petroleum with bacteria hot, easier to store than gas !!!
http://www2.ggl.ulaval.ca/personnel/bou ... siles.html
http://www.manicore.com/documentation/f ... trole.html
http://www.notre-planete.info/actualite ... etrole.php
https://www.econologie.com/conference-du ... -3945.html
http://www.diatala.over-blog.com/articl ... 617-6.html

[sdefzone2]

I try to respond a little more to opinions and questions ...

ptilu answer me: "20 to 40W? Are you sure? With that you barely power a bulb ..."

First I think in terms of battery charge. Nothing prevents me from consuming 1000w for brief moments, for example.
Go see on www.dotlight.de you will find something to light you with the top of the modern led, 20w per piece and it becomes comfortable.
Likewise to make noise on forums, a 15w netbook is more than enough ...;)
As for your apartment at 3000w nuclear, this is an example of waste, and not a desirable mode of operation. We will talk about it in a few years when the electric car will have indexed the price of your electricity to that of oil (e.g. ...)


Back on topic:

"more information on parts, suppliers, and prices."

Everything comes from home http://www.thermalforce.de/

Preferably browse the pages in German, the English pages are updated less often. The thermocouples are sold alone, or assembled in a "module" ready to wire.

The config used ....

Leing pump circulator at 170 euros 300-1500l / h
2 modules 12v, 38W in series to attack the solar regulator with 19-24V at 100 euros each
Add the piping that resists heat, the fittings etc ...

Which makes 200 euros per 20w "accessible" with this config.
We can therefore multiply as desired, the limiting factor will be the evacuation of calories (for now a trickle of fresh water is enough ...)

When I say "accessible", it is a delta t ° of around 200 °, preventing the hot side from exceeding 230 ° (an alarm buzzer then covers the soft purring of the pump ... )
Contrary to your fears, the cold side of the module never exceeds 30 °, the high water flow is there for that. When it freezes outside, the spring water flows at 2 ° and the performance is actually better!
Your use of the concept of insulation is wrong, since thermocouples sandwiched are not very insulating and each side is silicone to optimize the flow of calories. Remember that it is the metal of the stove that is hot, the air above is constantly renewed ...


Forhorse rightly remarks:
"And then conversely, for the hot source we can use an oil circuit, it would then be easier to regulate a very high temperature without taking the risk of reaching the temperature of destruction"

yes yes and again yes but it's more expensive, the Germans sell a 100w module on this principle, which also works with a lower delta t ... and that makes an additional liquid circuit to manage, which pump is needed to brew the hot oil?
If anyone has ideas for this kind of regulation ... Vast subject.

In my opinion, the simple and quickly applicable improvements are:
- Obviously increase the number of modules.
- Reduce the pressure drops on the cooling circuit to stay at 3w pump despite the increase in the number of modules.
- Control the power of the pump to the temperature on the hot side.
- Use an MPPT regulator rather than PWN? more expensive....


I repeat and claim, with a blissful and messianic air, that it is eminently complementary to photovoltaics, and that it makes it possible to reduce the number of panels / batteries by a factor of 4 to 8.

All that does not detract from the usefulness of developing a reliable and rustic gasifier in DIY ...

[dedeleco]

To make cold from the heat of wood without going through the electric generators, there are absorption refrigerators and thermoacoustic stirling, even very cold cryocooler 77k with liquid nitrogen !!
http://www.qdrive.com/UI/Cryocoolers-.a ... =111&pid=5
see : https://www.econologie.com/forums/refrigerat ... t9671.html
Finally there are thermoacoustic systems Stirling heat engine and fridge on a single tube with nothing mobile except the internal oscillating gas, and they are very remarkable!
http://www.mecheng.adelaide.edu.au/avc/thermoacoustics/
http://www.mecheng.adelaide.edu.au/avc/ ... stract=493
http://www.mecheng.adelaide.edu.au/avc/ ... as2009.pdf
We heat one end of the tube and the other end is cold!

http://www.americanscientist.org/issues ... issue.aspx
http://www.americanscientist.org/issues ... -of-sound/

[dedeleco]

A commercial gasifier not too big (big boiler price):
http://www.gekgasifier.com/gasification ... 4wodOws2KA
at $ 1000 per KW for 10KW !!
With motor and generator, it is a solution for 2 to 3 KW electric at $ 20000 ???? !!
Either $ 1000 investment 100Watts !!!

The Peltier Seebeck modules give electricity directly at a price lower than 100W, because each module is much cheaper, if assembled on a collective exchanger, in my opinion, and no noise, and a stove !!!!!!

[PRACTICAL SPIRIT]

Hi everyone, I may come in a bit late but hey…
PTILU WRITTEN

Otherwise, nobody has built one here?

Here me ...
I have already made an Imbert type gasifier with simple tools and a 1x2m mild steel sheet with thermal insulation, filter and exchanger to cool the outlet gases.

My goal was to run a 3KVA generator with wood from either dead trees or carpentry waste.

I did everything by myself from this sheet (the cylinders and the rest) only a minimum, qq tubes and fittings, was purchased.

The tests were successful. The only problem is that I cannot modify the group to advance the ignition because it does not belong to me.

This gasifier is nevertheless a little over-sized for this group (4 stroke 125cc engine), it is in order to use it with a more powerful engine (ex car), which tends to decrease the temperature of the hearth and even to switch it off after a certain time (insufficient air suction).

[dirk pitt]

Hi everyone, I may come in a bit late but hey…
PTILU WRITTEN

Otherwise, nobody has built one here?

Here me ...
I have already made an Imbert type gasifier with simple tools and a 1x2m mild steel sheet with thermal insulation, filter and exchanger to cool the outlet gases.

My goal was to run a 3KVA generator with wood from either dead trees or carpentry waste.

I did everything by myself from this sheet (the cylinders and the rest) only a minimum, qq tubes and fittings, was purchased.

The tests were successful. The only problem is that I cannot modify the group to advance the ignition because it does not belong to me.

This gasifier is nevertheless a little over-sized for this group (4 stroke 125cc engine), it is in order to use it with a more powerful engine (ex car), which tends to decrease the temperature of the hearth and even to switch it off after a certain time (insufficient air suction).

your experience is interesting. can you tell us more, share with us what points were difficult, etc ... photos.
in which region are you?

[vinzman]

When you type `` thermoelectric generator '' on ebay, you find modules for reasonable prices.

Then on each module, a computer radiator, and we end up with Peltier current generators. Computer radiators, it could work, right?

Radiators I'm talking about:

[antoinet111]

Hello, I too am super interested in your gas.

[PRACTICAL SPIRIT]

From the left you have:
-The generator with the outer shell in galvanized iron to accommodate the thermal insulation
-The cone which acts as a filter (cyclone) surrounded by the heat exchanger (to cool the outlet gases)
-Electric motor which is used for ignition (brings air into the generator and exits the gases after filtering and cooling)



And here is the glass wool insulation ready to be placed between the body of the generator and the outer galva shell.



I tried to do the best with the few means at my disposal, I wanted above all to make compact and efficient.

I send the videos and other photos as soon as possible

[antoinet111]

I'm studying this one right now: http://gekgasifier.com

everything is available on the site to make one.