Robert Gisolf

allen lumley wrote:

jared hudson wrote:@Allen thanks for quoting an edited version of my post. i must be crazy but i cannot find the edit button and am sorta steamy about that i feel like its taking away from the OP. its like i can only edit my last post or reply. ive never been much of a forum goer i have a lot to learn about your ways.

thank you for the information. I have some time right now and am going to read into it.

Jared I looked at his video and found a new teardown and inspection video and have couple of comments ! to see the video go to :::-->

https://www.youtube.com/channel/UC3jPpNIVpTEUoeXjSTBhtfw please highlight the Bold part and then right click, when you get to that

youtube.com channel you should see the video ''Disassemble Inspection'' click on it ! I get a broken link any other way I do not understand

One more broken link fixed, this one was not my fault, I THINK

I am hurrying a little to get this to you and then will want to parse the build more carefully !

I am not seeing the damage I expected to see, and am very interested to see if he is reporting Temperatures as high as 1500ºF, a more conventionally built
RMH built on this side of the Atlantic with Firebrick and more insulation will see temperatures above 2000ºF, We are certainly building Better Heat Risers too !

In the initial film the captions talk about the hot exhaust gases sinking and giving up heat, this is inaccurate -as they give up heat at the very top of the drum
the exhaust gases cool and become heavier and denser and then fail vertically towards the RMHs base!

I strongly believe that in place of The portland cement that I have already commented on the concrete in question is probably a form of Calcium Aluminate
cement usually called Ciment Fondu, or Cement Fondue on their side of the Atlantic, regardless besides the obvious metal embrittlement there is an obvious
Crack in the Concrete base shown at 5:43 !

I am sure there is much to learn from this example ! For the Craft ! Big AL

Hi there, I (Robert JH Gisolf) found this thread by coincidence. I don't understand the interface of this website, but perhaps this is the way to react to the text of the other user?
A reaction about this energy exchange between flue gasses and the case. The exhaust gasses don't only exchange energy at the top of the drum, but also during their fall down. So is this just another way of telling the same story?
Then about the concrete: I used special fire proof concrete, no Portland. And it is holding just fine. The crack is because the casting was too complex. So during the unpacking it cracked. Not by thermal problems. Because the concrete is surrounded by this metal case, I decided to just use the cracked concrete.