dsr2 cookstove or vortex cookstove?

[Vortex]

Dec 19, 2020 13:31:57 GMT -8 Jura said:

I sent this question to a acquaintance professor who deals with fluid dynamics.
He is damn busy but sometimes replies to questions of aficionados.
I tried to program the flow of the stream in your setup but there are too many variables and time dependent parameters needed to do it properly.

Thanks Rafał, Would be really interesting to hear what he has to say. I've posted an update on the Vortex thread: donkey32.proboards.com/post/35515/thread

[nixsee]

Dec 13, 2020 15:13:40 GMT -8 Vortex said:

For a dedicated cookstove I would go for a DSR1 or Vortex stove with the same post afterburner configuration as the DSR1 cook stove in Allerton Abbey: www.youtube.com/watch?v=hJ1uZnDDu3A

Hi Vortex, why would you recommend DSR1 over DSR2 for a dedicated cookstove?

[Vortex]

Hi nixsee, Ideally for a dedicated cookstove you need the flame of the fire on the underneath of the steel or ceramic cooktop you want to cook on, the DSR2 flame doesn't reach there. I recommend you read through this thread if you haven't already: donkey32.proboards.com/thread/3643/dsr2-cooking-range

[nixsee]

Thank you vortex, that makes sense. In general, do all these stoves require a chimney that goes beyond the stove in order to function or can you implement the standalone (accepting some lowered performance, etc...)/

[Vortex]

Yes, the rising column of hot flue-gas in the chimney is essential for creating draw in these designs. It's possible to run some of them with just a short chimney if it's just the core running without any mass. Some people have managed to make J-tubes without a vertical chimney, but then you run into startup problems and there's always the danger of carbon monoxide.

[josephcrawley]

donkey32.proboards.com/thread/3678/mark-cooktop-oven-side-exit?page=1#post-34655

This is a link to a short thread on this subject. I drew a possible core with a glass top based on peter's DSR2 core. I have not built it but plan on doing so whenever I rebuild my cook stove.

[markuspad]

Dec 14, 2020 13:35:10 GMT -8 skywalker said:

Dec 14, 2020 2:10:47 GMT -8 Vortex said:

This is the most up to date Vortex sketchup, (Thank you Jura for making it):

vftshop.com/images/others/Stove/VORTEX4.skp

It's correct except for the top chamber, where the best configuration I've found so far for the stumbler and exit port are: (stumbler 40mm x 230mm, exit port 117mm x 118mm or as near as square as you can get the exit port).

vftshop.com/images/others/Stove/topchamber12-20-3.jpg

vftshop.com/images/others/Stove/topchamber12-20-4.jpg

Thanks for the plan Vortex. That comes in very handy and doesnt look that complicated at all! I made a new sketchup file adding your comments about the exit port and stumbler. 

It can be found here:

gofile.io/d/gB9n4N

EDIT:

This link leads to the file in Sketchup 18

gofile.io/d/FeduGK

It says the files do not exist anymore - is there any chance to have these re-uploaded?

[Vortex]

I think that was the same as this one: Vortex%20Stove.skp I'd recommend you read the more recent top chamber experiments: page 51, page 56, page 57