JO is correct on all aspects. Specialy the milky camera
Indeed, the sacks are supported with perforated pipes. The perforated tubes are threaded at the end and simply thred in the top.
JO, the sacks being close to the grate is what concerns me allso. This material is tough thugh. On my Chevy occasionaly l found white ash spots on the cloth wich indicated a burn of soot up there, yet it apeared undamaged. What happens with hot char hiting it, l dont know. I need to test it.
Yes, there shuld be a detachable floor under the sacks.
Well a legit question Tom. The thing is on my previous build l had dirthy raw gas passing stright from the gasifier to the cooler tubes under the car, then in a felt sack filter and in the engine. Couple of problems showed up:
- cooler was too hard to rinse sucsessfully, and on one point half of it pluged on me completely ad l had to dismatle it to clean it.
- cooler lowered the car, on a couple of occasion l scrached the ground with it.
- the ash insulated the cooler making it ineffective!
So the under the car cooler needs to go. I am planing to pipe hot gas trugh 2 smaller pipes next to the driveshaft to the front, then to the cooler. The cooler will need to be placed between the engine and radiator (where the sack filter was now). This means the only place fo the new sack filter is in the engine compartment. The space there is limited so the final filter needs to only take care of the finest dust and as litle of it as possible. That is the reason l would like to keep as much dust as possible at the back.
On moist gas, Til is right. The goal here is never to have much moisture in the gas. Do this with chacoal and just enough “moisturisers” to achive good and complete H2O to H2 conversion. If it all works well on some point l will try a mix of charcoal and wood, but theoreticly that shuld resault in dry gas allso.
JO, yes, l was thinking to add nozzles for compressed air. I thunk that Swedish guys Mercedes you once showed us had this? Btw you still have the link to the site?
But l like Bobs shaker idea too! A sturdy shake avery 10min or so shuld get the job done. Perhaps more forgiving to the fabric too.
Steve, yes, compromise. My curse… right from the begining of my woodgas days. This is my third atempt on this car and while the first one kind of worked, the second one worked reasonably well, l am looking forward to the third one
Actualy range is the least of the problem here. I am happy with a 30mile hopper range but this new hopper l am building holds enough fuel for about 60 (that is if the auguer will be able to fill it all the way to the top) while not taking allmost no trunk space (a BIG + with 2 small kids).
Bigest problem is heat. I had terible problems with it on my first atempt, and still some with the second try. This time l am going all in in terms of insulating/cooling the system but more of that later.