JO´s 8" gasifier

I’m sorry, I have to disagree :smile:
The old carburated models were quite straight forward. The only thing weird about them was their engines were mounted backwards, clutch in the front. Most of the ones remaining here are used in what we call folk-race, poor mans dirt racing. Mostly because of good traction and easy maintaince.

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Smooth but I am not sure about quiet

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Haha, Don I don’t know if the 50s 2-stroke model could ever be accused for being smooth and quiet.
The model I fell in love with a long time ago is this one.

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100 mile maintenace

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Nice catch JO (pun intended) Is that the capacity that it will hold? or will it hold more? What is the diameter of your cyclone without the preheat shield?

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Thanks Don! I’ve emptied out almost the double a couple of times, but I suspect it was full all the way up the cone at that time. It’s such an easy thing to do so I try to remeber emptying every 100 miles or so.The cyclone dia is 5".

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My SAAB 9-3 has been decent. Seems to be rust proof, the DIC went last year, but a found a couple on Kijiji for 50.00/ea so I bought both, had a fuel pump go, broke a pulley, green rollers that run the window up and down broke - little stuff. Car is smooth, quiet, and fairly powerful. Faster than by bro’s S70 T5 :slight_smile:

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Interasting! Such a difference compared to my sistem.

I love the cyclone hatch. So simple. I have to lay down on the grownd and unscrew the plug to empty the ash.

I have never seen anything but pure grey ash in the cyclone. Its still a mystery to me…

allso, you have a lot of this stuff in there! after about 300 km, l empty maybee 2 cups out of the cyclone!

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Thank you Kristijan,
The only thing that can turn char and soot into ash is obviously oxygene. But still, 2 cups in 300 km seem like a very small amount. What about your hot filter? Or in your condensation? How much ash/soot do you collect there?
Does your hot filter ever clog? How often do you clean it out?
I’m sorry, it’s a lot of questions, but I’m curious because if I ever build another gasifier for a sedan I won’t be able to fit a full size filter barrel in the trunk :wink: I will most likely go the hot filter route.

That could double as a back seat heater. :smile:

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What are you talking about when you say “hot filter”? TomC

JO, I collect about a liter of ash/char from the ashpit (cleaned every ~ 500km) and two cups of pure ash in the cyclone after every 200 km.

Everything after that is a minority. I clean the hot filter every about 1000 km but it wuldnt be nessesery. Most of the soot just falls down from the fabric when it colects enough. But interasting, there is only charcoal dust on the hotfilter. Black as black culd bee.

I only end with trace amounts of soot after the filter. Just to paint the components the nice black colors :smile:

TomC, a hot filter is a system when the gas gets filtred just after the cyclone and then gets cooled clean. The obvious advantige is you never get soot in the cooling rails.

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Shows your cyclone is working good, I guess.
Maybe one of the reasons you’re not pulling any small char into your cyclone is your gasifier housing is square and allows for some setteling volume.

Kristijan beat me to it. I could only add it’s a fabric that can take up to 800 C and is arranged pretty much like an air breather filter.

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Hi,Tom!
29.1.2017

Hot means well over the dew point for both
water and tars!
Placing just after the cyclone usually fills that requirement; at upstart the wet gases should be blown out before the fabric filter to avoid any condensation, resulting in “baking” the fabric useless when the heat arrives.

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Max, l never do that. My startup gas is never seen eaven when l blow it off in wery cold weather.

l newer thod this was possible with a wood gasifier. But l never had any problems so far.

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Hi, Kristijan!
29.1.2017

You have a small filter in a compact hot place; what condenses in it will soon be boiled off as it heats up. I have seen your dry soot, but in an open, voluminous system, where the filter is a separate barrel with > 6 m2 fabric volanging, hanging freely, it is a different story… they are not instantly heating up in the winter, if you start with wet tarry gas!

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Since I’ve been running rather high vacuum this last week and I haven’t emptied the dump for more than 1000 miles I thought it was time.
The video shows clearly that the left dump cap has been leaking air in. After filming this I went for a 20 min ride and the right hand side of the dump was hot to the touch, as it should be when empty. However the left hand side was completly cold. This suggests I have an ash bridge in there, since I didn’t get anything out. The gas passage is probably blocked on that side. When it cools down I’ll stick a wire in there and bust things loose.

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Wow, big difference in such a small space.

Oh the joys of a, Small Active Volume High Velocity Just in Time System. (Imbert type)
A WK: a Large Active Volume Moderate Velocity Settle In System.
Larry Dobsons works: Huge ALL HOT Active Volume Extremely Slow Velocity Continuous In Feed Systems.

Hey blame this on my German heritage fraction. L-o-n-g, detailed, descriptive naming that beg to be acronym-ized.
( then only you-have-to-know, to-know, understandable)
Just ask MaxG how many German types of “Imberts” there were designer/use named classified.
J-I-C Steve Unruh

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I just got in from scratching down the ash cavity. I augered out another showel of only white ash this time.
I think since the gas outlet is to the left, most of the slipped char and fines blow that way and piles up. An airleak in the left cap then turned most of it to ash.
Solution: More silicone on the threads and then I may have to empty the dump a bit more often. Especially the left side.

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