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Post by independentenergy on Dec 20, 2023 1:58:27 GMT -8
I designed a complete core it should be correct, at the moment the development should be at this point, I think the firebox is also defined as the riser-box I think. the vertical riser could perhaps still be modified from what I understand. the only doubt I have left before continuing with the construction is the door, I tried to resize the one on the DSR3 but I have no references and I don't know if the measurements are correct. drive.google.com/file/d/1bIdmFPdbe7Q5LKLxa7wQz96Ji84e1FUk/view?usp=drivesdk
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Post by independentenergy on Dec 19, 2023 7:57:17 GMT -8
everything is clear Peter, you have to excuse me if I can't express myself properly, English is difficult for me
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Post by independentenergy on Dec 19, 2023 4:03:25 GMT -8
just a curiosity, while the bottom of the rise-box is decisive for the performance of the system, have you noticed that the riser must also have precise dimensions besides obviously the end port? for the riser have you respected the dimensions equal to the core for now?
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Post by independentenergy on Dec 18, 2023 15:12:24 GMT -8
Very good!
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Post by independentenergy on Dec 18, 2023 5:21:08 GMT -8
you can avoid cracks by building two "skins", one in refractory then a soft contact material and then the second skin which can be bricks, tiles or other. this way you won't have cracks on the surface
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Post by independentenergy on Dec 15, 2023 3:40:22 GMT -8
thanks Peter, I saw the drawing and noticed that the dimensions of the base of the riser up to the port are those of the chimney (130) then the riser has the dimensions of the batch box. I will try to adapt the measurements with what I have already built without breaking anything. I still have time for the construction I can wait for any changes and improvements.
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Post by independentenergy on Dec 13, 2023 15:38:09 GMT -8
I'll answer your post for a way to change your current build one of these days. Please send your skp file, I am able to read these upto the 2017 version. Version 8 is lower so this will be alright. I'll amend the file and return it. this is the core design as I understood it. it is made to the size of the bricks I have. It was drawn with Schetchup 17 drive.google.com/file/d/1Pv_ECsVGB6pBcpu0UQgc53Vv4RFsRNQB/view?usp=drivesdk
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Post by independentenergy on Dec 13, 2023 4:40:59 GMT -8
it might be interesting to reverse course and add two more pieces to the right and left of the door and by doing so further lengthen the groove and remove the piece of superwool from the bottom. I understand what you say about adding the two pieces left and right of the port. But I am in the dark what you mean by "further lengthen the groove and remove the piece of superwool from the bottom." What do you mean by groove? And there isn't superwool at the bottom of the riser box but refractory brick instead. I wrote it wrong. My idea is to add two pieces of superwool to the sides of the door, two on the right and two on the left, and leave only one piece of wool on the back. extend the depth of the door so that if it was previously 3 cm by adding two 2.5 pieces of wool it will become 8 cm
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Post by independentenergy on Dec 13, 2023 3:23:33 GMT -8
it might be interesting to reverse course and add two more pieces to the right and left of the door and by doing so further lengthen the groove and remove the piece of superwool from the bottom.
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Post by independentenergy on Dec 12, 2023 3:43:27 GMT -8
Hi Peter, I am aware of the risks of a construction yet to be tested, thank you for warning me, I am going slowly to avoid having to redo everything. I am at this point in the construction so it is still possible to make changes without breaking anything: drive.google.com/file/d/1OyROD5fekpqk70Ev8cQjkq03fwQgjdzW/view?usp=drivesdkSo you suggest Is it correct to leave the depth of the door at 6 and reduce the part of the riser above the door to a thickness of 3cm? I can leave the rest of the riser at core size and put superwool on it for testing. When it's final I can glue refractory boards of the correct size. in this case, however, the riser is larger than the size of the core because it has been moved by 3 cm I have a schetchup file to share, could you kindly tell me which version of schetchup you are able to open, it used to be 8, now which version do you use?
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Post by independentenergy on Dec 11, 2023 9:45:21 GMT -8
Hi, the bricks I use in the core are from an Italian company, they are the industrial type and are used in foundry ovens. They are very hard to cut them I have to lubricate the diamond disc with water. the slabs are of the same type, it seems they contain iron because sometimes sparks come out of the cut. they are quite expensive at €4 per brick. the mortar always from the same company is a ready-made mortar of industrial specifications, very resistant to heat but with a fair mechanical resistance. the company I get my supplies from is called Unistara. I've been using them for 8 years in a batch-box of 150 and they are discreet
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Post by independentenergy on Dec 11, 2023 1:58:39 GMT -8
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Post by independentenergy on Dec 9, 2023 22:19:05 GMT -8
Hello Peter First post here. I have been playing with fire 5 years now using your information as a jump off point, to build a wood chip burner for my farmer brother. Thanks a lot for investing work of sharing your testing. I will post some photos soon on a new thread. I suggest trying to modify the liner inside the riser. Remove the two sides and the pieces beside the port, that are not back of the burn riser, and put another layer or two of the superwool against the backside. this would then hopefully make the port stream split into two smaller vortex. I would put the top exit to the back at 100% system size so that the gas stream has to hit the top and move backward to exit. personally I think not to put that part of superwool because I use a 6 cm wide brick for the throat so I think it is already deep enough, even if I noticed in my batch box that has been in operation for 8 years that that part of the upright wears a lot, a material which can be easily replaced even if less durable I find it useful.
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Post by independentenergy on Dec 9, 2023 3:26:57 GMT -8
thanks Peter for your tests, they are exactly what I was hoping for without a door, it seems like it can be done
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Post by independentenergy on Dec 7, 2023 15:37:51 GMT -8
I think I only need the data for the dsr3 port then I can start the construction with Peter's blessing obviously:-D I am assuming you mean the DSR3 door assembly. There's one online as used for the DSR3 150 mm core: see pberg0.home.xs4all.nl/pictures/dev2021/DSR3core150.skp Of course you won't need the upper part of the frame. Peter if I wanted to adapt the door to a 130 system can I scale it with schetchup and would the measurements be correct? furthermore, the depth of the throat/entrance door of the riser is the thickness of the brick that I use is 6 centimeters ,too thick or is it okay?
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