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Post by independentenergy on Apr 3, 2018 3:44:08 GMT -8
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Post by pinhead on Apr 5, 2018 8:38:01 GMT -8
That looks like quite the undertaking! Since I don't know the relative output of the DSR, I'd be hesitant to apply such a large mass to it. OTOH I only have experience with J's and PBB's.
You will definitely, absolutely, unequivocally need a bypass (or two) to get it started from cold.
EDIT: I'm looking more closely at your SKP and noticed a door you can open/close. I'll have to wrap my head around the exhaust path before I can make any suggestions!
EDIT 2: Ok now I see!
Only thing I'd note is, from the looks of it, the "auxiliary" bell on the left side of the assembly won't heat up for a long, long time. This may be by design, though I doubt it'll ever get up to temp under normal operating conditions.
This is basically the design that I had in mind when I built my PBB Cellar Rocket. I don't see why it wouldn't work - provided the DSR has enough output!
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Post by independentenergy on Apr 5, 2018 21:47:26 GMT -8
you think it is more prudent to reduce ISA considering that the performance of the DSR is not known? Thank you for your reply
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Post by Vortex on Apr 6, 2018 1:44:33 GMT -8
If you make the bypass the sliding type, then you can compensate for to much or to cold mass by adjusting a small amount left open to keep the chimney temperature up.
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Post by independentenergy on Apr 6, 2018 16:25:45 GMT -8
thanks vortex for the suggestion. auxiliary bell has been designed to compensate for the lack of heat on the left side due to the presence of the core.
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Post by pinhead on Apr 9, 2018 10:47:48 GMT -8
thanks vortex for the suggestion. auxiliary bell has been designed to compensate for the lack of heat on the left side due to the presence of the core. I may be misunderstanding your purposes here, but as I see it, the auxiliary bell will be the very last area to receive heat in this design - much like a low bench will likewise be the last area to receive heat. Likewise, the overall temperature will be much lower - as the gas temperature will necessarily be lower when compared to the upper portions of the primary bell in order to reach the small "door" leading to the auxiliary bell. On the other hand, the small gap between the core and the wall on the left side is sufficient by itself to allow heat to flow to that area - and thus heat that wall. There is no need for a "secondary" or separate bell to move heat to that area - unless you specifically want it to be of lower intensity.
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Post by independentenergy on Apr 10, 2018 8:44:15 GMT -8
thank you was what I wanted to know
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