Hello to all !
This is the first time i’write here but i’knew this forum for a long time to learn about gasifiers and the rather extensive science behind them, as well as videos and other tutorials =)
I’have a project to make a very small, portable gas generator where weight and size are rather important.
Basically the idea is to use it for my equipement (like recharge drones, or computers…) and also small powertools in remote locations like mountains for hiking or for handiwork at a remote shack i’have.
These are rather power hungry and my solar battery i’bring depletes very quickly as you can imagine and bringing a powerful enough solar panel is impossible as well as not inconsistent (the sunlight which can’t reach me for example …)
There is no such small generator (4stroke at least) in the retail and also i’d like to construct one by myself so i’d try it
I’have an old GX35 (35cc - 1.3 hp/7000 rpm) and want to turn it to a very small portable generator capable of delivering around 350 W for powering the portable solar battery/inverter which can deliver an output of 700 W and 1000 W peak for a 350 W input.
I’also have a 170 KV brushless motor from an electric skateboard which i’will connect directly to the gx35’s shaft and bolt it to it’s frame to avoid shaft misalignement a bit more (was a hassle to do ) and an electronic voltage regulator where i’can change parameters.
Now, the part i’am the most unfamilliar with : The fuel part =)
I’am very interested in using a gasifier as it’s fuel source because, well wood/charcoal is available everywhere and the weight is an issue so an “on the spot” fuel source is much more interesting than bringing gasoline which add weight (i’don’t plan to use the generator while walking, but when i’stop) and is rather dangerous and not efficient because the stock will be depleted in no time and the refueling would be impossible till i’go back to a city/gas station of course.
I’have seen similar endeavours on Youtube, but there is no technical details, for example this video, which was my first dive into the gasification world =)
-How to Make a Generator that Runs on Wood!!! (wood gas gasifier) Experiment - YouTube which worked, and seems coherent with the pot size he used. Even if the big reactor barrel is a nono because of the size
-Running a Gasoline Engine on Firewood | Woodgas Biofuel - YouTube which didn’t worked but the engine was stuttering and the bee smoker seems perfect for myproject but will it work ? Which modifications it does need more than a filter and better blower ?
So i’am here to ask some, well a lot, of advices concerning this project and have questions also which seems important to me, for example :
-I’gathered that using charcoal is better for small engine, tar free (so a much simpler, smaller and lighter filter for the dust) than wood? What do you think ? Why is that ?
-The best temperatures of each "part’, especially for the pyrolysis to occur the best (900°C-1100°C to crack the tar for wood, but how hot is the best for charcoal?) I’plan to use battery powered small blower to control the temperature of the “firey core”, even if it means losing a few watts
And more to go hehe, i’really want to make this project happens (if it is physically possible of course) so the best thing to do is to ask the much more experienced and knowledgeable people I’think =)
Thanks for reading this long post and hope this project will be possible at least
Wishing all the best to all !