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Post by paganodimelito on Jul 2, 2021 0:03:22 GMT -8
the only superwool blanket available at local hardware stores is 13 mm thick, coupled with aluminium foil.
I was planning to use 2 layers to insulate the core and plaster them with a mortar made of extremely fine sand and clay slip, reinforced with fiberglass mesh.
my question is: will the aluminium foil melt? should I remove it?
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Post by Vortex on Jul 2, 2021 1:32:52 GMT -8
I used 25mm ceramic blanket wrapped in aluminium foil tape around a steel inner chimney. The bypass is at the top end so it gets direct heat at startup if using the bypass. I wondered if the aluminium foil would melt but it's dome 2 years and is still fine.
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Post by paganodimelito on Jul 7, 2021 21:26:52 GMT -8
In my case the aluminium would be inside the main bell, around the burn chamber and the riser
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Post by belgiangulch on Aug 17, 2021 4:20:39 GMT -8
Hey Pananodimelito;
I think you will be fine. Aluminum transfers heat rapidly.
Outside the riser and in the bell you will not get hot enough to melt.
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Post by fiedia on Aug 19, 2021 23:13:31 GMT -8
The temperature of the alu foil will depend on where you put it and what material is in front and behind. Is it a J or a batch rocket ?
The hottest places are the lower half of heat riser and the burn chamber. What is it made of: steel, bricks...?
Why do you want to insulate inside the bell?
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Post by Vortex on Aug 20, 2021 1:03:50 GMT -8
I was planning to use 2 layers to insulate the core |
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