|
Post by jdawgsplace on Jan 27, 2019 13:30:29 GMT -8
In 6yr i plan to be on my place in hardy, ar...i very much want to incorporate a rocket stove for heat and winter cooking...and possibly hot water as well...
i intend on using rigid ceramic board as a key building material...i'm currently in houston, tx and would like to know if there's any local folks i can discuss my ideas with...
thx
|
|
|
Post by peterberg on Jan 27, 2019 14:08:53 GMT -8
Hi jdawgsplace, welcome to the boards. The reference library is hardly the right place for to ask questions. So this post is moved to the "Rocket stoves for heating" department.
|
|
|
Post by gadget on Jan 27, 2019 19:40:17 GMT -8
I'm no where near your area but if your looking for any online info I would start with the work Matt Walker has been doing with the rigid board. Here is a thread with one of his youtube vids; donkey32.proboards.com/thread/2315/ceramic-fiber-build-discussion?page=1&scrollTo=24928He has done some work using it in the burn chamber with really good results. I am also building with ceramic fiber board and blanket. In my opinion, its the best way to go.
|
|
|
Post by jdawgsplace on Jan 27, 2019 19:51:05 GMT -8
I'm no where near your area but if your looking for any online info I would start with the work Matt Walker has been doing with the rigid board. Here is a thread with one of his youtube vids; donkey32.proboards.com/thread/2315/ceramic-fiber-build-discussion?page=1&scrollTo=24928He has done some work using it in the burn chamber with really good results. I am also building with ceramic fiber board and blanket. In my opinion, its the best way to go. i got one of his books and watched several of his videos...great material if you have some experience or a partner...i have neither
|
|
|
Post by DCish on Jan 29, 2019 9:14:46 GMT -8
If you have 6 years until relocation, you may have some time to gather experience. I started with dry-stacked hard firebricks in the yard and made some standard batch boxes, a few J tubes in various configurations, then got some insulating firebrick and converted a grill to run on a j-tube. If you end up not finding anyone local, start tinkering outside where it's safe, and post videos and pictures of what happens. Tinkering leads to specific questions, and folks are generally quite willing to share their experience when they have a specific question to respond to. Or draw or use SketchUp to make a model of your ideas. It's overwhelming at first, but at some point you just have to dive in and start tinkering with specifics. Good luck, I look forward to seeing what you come up with!
|
|
|
Post by jdawgsplace on Jan 30, 2019 13:55:06 GMT -8
If you have 6 years until relocation, you may have some time to gather experience. I started with dry-stacked hard firebricks in the yard and made some standard batch boxes, a few J tubes in various configurations, then got some insulating firebrick and converted a grill to run on a j-tube. If you end up not finding anyone local, start tinkering outside where it's safe, and post videos and pictures of what happens. Tinkering leads to specific questions, and folks are generally quite willing to share their experience when they have a specific question to respond to. Or draw or use SketchUp to make a model of your ideas. It's overwhelming at first, but at some point you just have to dive in and start tinkering with specifics. Good luck, I look forward to seeing what you come up with! thx... you're probably on spot...my 1st question is why a "j-tube"? a lot of outdoor camping RS the fire tube is more like a "v"...so, yeah, i need to build prototypes now and self teach...i'll do youtube for sure
|
|
|
Post by DCish on Jan 30, 2019 14:37:57 GMT -8
thx... you're probably on spot...my 1st question is why a "j-tube"? a lot of outdoor camping RS the fire tube is more like a "v"...so, yeah, i need to build prototypes now and self teach...i'll do youtube for sure A lot of what you'll see on YouTube is hacked together and doesn't reflect the depth of knowledge that is generally seen here. There are a couple of things that are central to getting clean, high-efficiency combustion - Temperature -- the higher the better until you pass 2300F or so where you can start to form other nasty byproducts. That's not something we have to worry about with natural draft wood burning appliances, though. - Turbulence -- the fuel molecules have to be able to interact with the oxygen molecules, so good turbulence is essential to mix things together and approach complete combustion. Of course, creating turbulence also creates friction, something you want to minimize, so you're always chasing the best balance possible. - Time -- Combustion of wood fuel takes a while, so you have to create an environment that will sustain high temperatures and turbulence over enough time for all the fuel particles to burn All of this background to say this - the short initial downward part of the "J" provides the ideal angle for fuel to be pulled in by gravity with as little hang-up as possible. Combustion happens at the bottom of the J until it hits the 90* upward turn into the long part of the J. This abrupt transition induces strong turbulence. The upward part of the J is also insulated, providing additional time for mixed air / combustion gases to finish burning. What is missing from a lot of the "V" tubes you will see on YouTube: - Temperature -- Most of the V tubes I see on YouTube are fabricated out of bare metal with little to no insulation. A well-build J tube will achieve high enough temperatures to rapidly degrade the metal that these are made of, so, paradoxically, if they were burning well, they would self-destruct. - Turbulence -- the fuel coming in at the bottom of the upward tube leads to a simple, straight combustion path with minimal to no turbulence induced - Time -- Although a V tube may have a sufficiently long riser, with no insulation and poor mixing, combustion temps fall and the combustible gases stop burning before all the fuel is consumed Some fun reading about how much of the stuff here developed: General "getting started" stuff: donkey32.proboards.com/thread/1/welcome-start J Tube: donkey32.proboards.com/thread/355/small-scale-development Batch box: donkey32.proboards.com/thread/511/adventures-horizontal-feedHappy reading!!!
|
|
|
Post by jdawgsplace on Jan 31, 2019 8:18:36 GMT -8
thx...so j-tube makes more sense...and ceramic fiber is rated for 3000 (the 1 inch stuff)...i got a set of plans from matthew walker remine so guess that's my starting point...now it's just money
|
|
|
Post by drooster on Jan 31, 2019 10:20:52 GMT -8
DCish that's a superb paragraph on 'most' youtube rocket-stoves, do we have a forum section on must-read short articles?
(You have me thinking about a camping-stove now ...)
|
|
|
Post by DCish on Jan 31, 2019 12:32:18 GMT -8
Thanks, drooster. There is a "heavily moderated" library area, not sure if it would be a good fit for that area or not. Peter, thoughts on including something like this there?
On the camp stove idea, I've thought of using rigidizer on half-inch ceramic fiber blanket to try to cobble something together for car camping trips, but that's still a pipe dream so far...
|
|
|
Post by peterberg on Jan 31, 2019 13:13:25 GMT -8
I feel for it, using the whole of your article minus the quote at the top would be sufficient I'd say. Do you have an idea for a title?
|
|
|
Post by wiscojames on Jan 31, 2019 16:46:20 GMT -8
"Getting started with basic pricipals and some current designs"
|
|
graham
Junior Member
Posts: 74
|
Post by graham on Jan 31, 2019 18:36:44 GMT -8
What nasty byproducts are you thinking about are created at above 2300F ?
|
|
|
Post by peterberg on Feb 1, 2019 1:28:40 GMT -8
Brian, (DCish) I've moved your edited article to the Reference Library under the title of your choice "" Evaluating Common YouTube Rocket Stove Designs". By moving it (instead of creating a new thread and copying it) you are still showed as the original author.
|
|
|
Post by DCish on Feb 1, 2019 12:10:48 GMT -8
Thanks Peter!
|
|