artem
New Member
Posts: 19
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Post by artem on Sept 10, 2023 3:28:07 GMT -8
Hey all, Curious if anyone might be able to point me to a spreadsheet or a guide on calculating dimensions of all the various elements of a DSR3 stove? I don't suppose I can just take the good old spreadsheet from batchrocket.eu, since there are certain elements missing from it, like the size/CSA of the top box etc.
Much appreciate your responses!
Art
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Post by josephcrawley on Sept 10, 2023 5:14:09 GMT -8
If you download the SketchUp from the dsr3 thread and use the scale feature you can resize it. Then pull your dimensions of the scaled diagram.
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Post by peterberg on Sept 10, 2023 8:16:59 GMT -8
Hi artem, welcome to the boards. The DSR3 core is published earlier, as Joseph Crawley mentioned. Here's a link to the post from where the sketchup file can be bownloaded. donkey32.proboards.com/post/37332/threadJust scale the whole thing and you should be fine. It might be handy to read more from that post down, more information is scattered around in that development thread. |
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artem
New Member
Posts: 19
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Post by artem on Sept 10, 2023 14:00:09 GMT -8
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Post by peterberg on Sept 11, 2023 0:07:17 GMT -8
As far as I can see, it follows the right path. I didn't check all the numbers individually, but they're in the correct ballpark. |
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artem
New Member
Posts: 19
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Post by artem on Oct 20, 2023 22:20:27 GMT -8
Hey guys,
I am a bit lost when it comes to terminology in case of DSR3 stoves. What exactly is "system size" in this instance?
Looking at the spreadsheet above, it expects that as an input variable.
In "classic" batch rocker scenario, system size seems to refer to internal diameter of heat riser, bin case of DSR3 there's no heat riser, but there is the afterburner tube, which seems to depend on system size, yet not equal to it.
Much appreciate your answers!
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Post by peterberg on Oct 21, 2023 0:21:21 GMT -8
System size refers to the diameter of the chimney AND the diameter of the afterburner tube. I've tried a number of diameters, in different materials. To be precise: in a 130 mm system, from a 120 upto 140 mm tube didn't make much of a difference. So, yes, the afterburner tube depends on system size although there's some tolerance.
Much the same as in the normal batchrocket, I'd say. There's a certain tolerance in chimney pipe and riser, but to keep things simple it would be best to stay as close to the recommended values as possible.
This approach will avoid situations as a wider chimney, a smaller riser, a wider port and a much lower firebox, all at the same time. This represents a sloppy recipe for a sub-standard heater, even a complete failure would be possible.
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