Daguy Posted October 11, 2018 Author Share Posted October 11, 2018 Well I've burned it long enough that I think the Calcite has burned out. Here's a couple links to videos of it burning last night.. Let me ask: How's my (Dragon's) Breath? My Dragon's Breath at 1 PSI My Dragon's Breath at 20 PSI Sorry about the focus, but you'll get the idea. After all, I was filming with a phone. Link to comment Share on other sites More sharing options...
Frosty Posted October 11, 2018 Share Posted October 11, 2018 On 10/4/2018 at 4:19 AM, Daguy said: the English language. I know this was covered already but "fora" is Latin and except for my etiological nudge my only exposure to Latin and Greek are from Paleontology books. On 10/4/2018 at 4:28 AM, JHCC said: is an affectation An affectation John? Is that what you call using words with more than two syllables on a blacksmithing forum? It's good to know the real thing though, sure beats being misinforumed. On 10/4/2018 at 12:50 PM, ThomasPowers said: careful I got moderated once when I mad a typo posting something similar! Think that's moderation Thomas? Try being moderated by a birch. . . No, don't do that, just take my word for it instead. The forge looks good, 1 psi has little dragon's breath and 20 psi isn't blowing 3' out the doors. Is the video slowed down? There seems to be a louder faster beginning and ending couple seconds. Frosty The Lucky. Link to comment Share on other sites More sharing options...
ThomasPowers Posted October 11, 2018 Share Posted October 11, 2018 Frosty; I've known several folks who have played Irish Stand-down with trees. I myself will try to avoid it---I just don't have the guts. (Though I do have the scars from their removal...) Link to comment Share on other sites More sharing options...
JHCC Posted October 11, 2018 Share Posted October 11, 2018 3 hours ago, Frosty said: Is that what you call using words with more than two syllables on a blacksmithing forum? Indubitably. Link to comment Share on other sites More sharing options...
Daguy Posted October 12, 2018 Author Share Posted October 12, 2018 4 hours ago, Frosty said: Is the video slowed down? There seems to be a louder faster beginning and ending couple seconds. Yes, I thought using the slo-mo feature on my phone would give a better idea of what is happening. Link to comment Share on other sites More sharing options...
Frosty Posted October 12, 2018 Share Posted October 12, 2018 Part of what's happening is how fast the flames are leaving the forge, distance and speed are what we're looking for. If a video is distorted a couple stills are usually as good. I would've been pretty excited thinking flames that slow were coming from a 3/4" T. Not griping it still looks darned good, I just wanted a little clarification. What you really need Thomas are enough brains you can afford to lose some. I have the scars to prove it. Frosty The Lucky. Link to comment Share on other sites More sharing options...
Daguy Posted October 12, 2018 Author Share Posted October 12, 2018 Once I replenish my propane tank I’ll take a normal time video and post a link. Daguy Link to comment Share on other sites More sharing options...
Daguy Posted October 19, 2018 Author Share Posted October 19, 2018 Here It Is!! Dragon's Breath Real Time Link to comment Share on other sites More sharing options...
JHCC Posted October 19, 2018 Share Posted October 19, 2018 It's so quiet!! Link to comment Share on other sites More sharing options...
Daguy Posted October 20, 2018 Author Share Posted October 20, 2018 I'm very pleased by how quiet it burns. Frosty came up with a real winner in this ribbon burner design Link to comment Share on other sites More sharing options...
swedefiddle Posted January 6, 2019 Share Posted January 6, 2019 Naturally Aspirated Ribbon Burner Link to comment Share on other sites More sharing options...
Daguy Posted April 19, 2021 Author Share Posted April 19, 2021 Can't believe it's been over two years since I built this forge, or since I've posted on it. Time flies and drags in the time of Covid! A cool thing happened last week. My employer bought a very expensive FLIR camera and decided I was the guy to train on it. Couldn't resist the opportunity to share some pics. These were taken at 20PSI. Frosty, since this was my first build, I can't believe it turned out optimized. in your experience, how much more than 2113F can one reallistically tune a 20 Lb propane tank homebuilt forge heated by a 20 (Crayon sized) hole NARB to reach? Link to comment Share on other sites More sharing options...
Anachronist58 Posted April 21, 2021 Share Posted April 21, 2021 That is a VERY cool Thing! Robert Taylor Link to comment Share on other sites More sharing options...
Frosty Posted April 22, 2021 Share Posted April 22, 2021 Wicked cool pics! I have no idea where you forge will top out. A ribbon burner make more even temps through the whole forge where a single outlet burner makes a HOT spot and the heat disperses. My NARB forge gets plenty hot to weld in but the hot spot in my T burner shop forge melted the hard split fire brick directly under the burner. Same umber and size T inducers in the about same volume of forge chamber. I'm thinking if you close the ends up just shy of where it inhibits the burner you'll get a couple few hundred more degrees. Ribbon burners make much slower velocity flames so they hang in the chamber longer for higher energy transfer. Nice of the Boss to make you learn to use that thing. Have the other smiths in your area found out? Frosty The Lucky. Link to comment Share on other sites More sharing options...
Daguy Posted April 29, 2021 Author Share Posted April 29, 2021 (edited) Frosty (and everyone else), Thanks for the reply. When I blocked the ends of the chamber and the NARB was runnining full tilt, It would occasionally spit and sputter, and the flame sometimes sucked back up into the tee. But only at higher propane pressures, and only after the head had heated up. This confuses me. Higher pressures would indicate that the flame was being "blown out", but the fact that the flame wants to travel back up the gas train would indicate that the gas is not being blown hard enough to be beyond the orifi (orifices?) before ignition after the ribbon attains full heat. Math hurts my head, and that's why I'm running my "Hillbilly Logic" by the forum. I have to think that it's because after the ribbon heats up it can ignite the propane in the mixing chamber before it passes through the orifi because there's not enough air pushing it through the ribbon. It seems to me I should retract the gas jet enough to introduce a greater air:gas ratio into the mix. Does that make sense to you Math Ninjas? Edited April 29, 2021 by Mod30 Remove excessive quote. Link to comment Share on other sites More sharing options...
Frosty Posted April 30, 2021 Share Posted April 30, 2021 Forget the pressure, you guys are obsessing over PSI and as your experience is showing you PSI IS NOT the issue. What keeps the burner block cool enough to not burn back is FLOW, not psi. Pressure only effects flow to a small degree. There are two potential reasons they're burning back. #1 and most probably, you've blocked the openings too much. OR #2 your blocks need more nozzles to increase the flow. Without enough passageway increasing psi increases back pressure on the inducer and DECREASES flow. Exactly the OPPOSITE of what you need! When this started happening did you try opening the door baffles some? Remember, make a change, observe the effects and adjust accordingly. Frosty The Lucky. Link to comment Share on other sites More sharing options...
Mikey98118 Posted April 30, 2021 Share Posted April 30, 2021 Good summation, Frosty Link to comment Share on other sites More sharing options...
rogerbevsc Posted January 8, 2022 Share Posted January 8, 2022 Daguy- how is the burner attached to the forge? In the pics it looks to be sitting on the angle iron feet, maybe? I’m researching for a first forge, and yours looks great! Link to comment Share on other sites More sharing options...
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