Wild Rose ~ Quarry Hunslet
- Hydrostatic Dazza
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Re: Wild Rose ~ Quarry Hunslet
Looks Marvelous.
Bravo.
Bravo.
Cheers from Dazza, The Hydrostatic Lubricator
The chances of finding out what’s really going on in the universe are so remote, the only thing to do is hang the sense of it and keep yourself occupied. Douglas Adams
The chances of finding out what’s really going on in the universe are so remote, the only thing to do is hang the sense of it and keep yourself occupied. Douglas Adams
- dewintondave
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Re: Wild Rose ~ Quarry Hunslet
Just as Stephen King linked the novels "Delores Claiborne" and "Gerald's Game" I have linked the live diesel and this loco by using a 3/16" bronze ball on a control lever
The blower pipe needed a gentle detour out of the way of the mechanism...
The blower pipe needed a gentle detour out of the way of the mechanism...
Best wishes,
Dave
Dave
- dewintondave
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Re: Wild Rose ~ Quarry Hunslet
Best wishes,
Dave
Dave
Re: Wild Rose ~ Quarry Hunslet
Nice and smooth Dave.
ROD
Life is so easy when I run my trains.
https://gardenrails.org/forum/viewtopic ... 41&t=11364
https://www.youtube.com/@fairywoodlightrailway
Life is so easy when I run my trains.
https://gardenrails.org/forum/viewtopic ... 41&t=11364
https://www.youtube.com/@fairywoodlightrailway
- dewintondave
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Re: Wild Rose ~ Quarry Hunslet
"An engine isn't an engine without a whistle". So I'm starting on the whistle. Being time rich, I love using up scraps of material. I had a nice piece of brass just right for the whistle end caps, but far too short to chuck. So I drilled it though and sliver brazed it to a long piece of brass rod. Instead of filing a flat to channel steam over the mouth of the whistle tube I'm racking a lathe tool on its side as per the picture indexing the chuck by hand. I used this method on the large De Winton's whistle.
Best wishes,
Dave
Dave
- dewintondave
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Re: Wild Rose ~ Quarry Hunslet
Not a bad effort that Dave.
ROD
Life is so easy when I run my trains.
https://gardenrails.org/forum/viewtopic ... 41&t=11364
https://www.youtube.com/@fairywoodlightrailway
Life is so easy when I run my trains.
https://gardenrails.org/forum/viewtopic ... 41&t=11364
https://www.youtube.com/@fairywoodlightrailway
- dewintondave
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Re: Wild Rose ~ Quarry Hunslet
Getting back in to it now! I've been working on a gas burner to slot-in instead of the grate. Had some success in the end lighting it inside the firebox.
Burner without end caps When I made the steam powered diesel I made a nifty jig for drilling the 4 cross holes in the thin tube, I copied the jet holder too
Burner without end caps When I made the steam powered diesel I made a nifty jig for drilling the 4 cross holes in the thin tube, I copied the jet holder too
Last edited by dewintondave on Thu Jul 11, 2019 8:02 am, edited 1 time in total.
Best wishes,
Dave
Dave
Re: Wild Rose ~ Quarry Hunslet
Brilliant job there Dave. Well done...
ROD
Life is so easy when I run my trains.
https://gardenrails.org/forum/viewtopic ... 41&t=11364
https://www.youtube.com/@fairywoodlightrailway
Life is so easy when I run my trains.
https://gardenrails.org/forum/viewtopic ... 41&t=11364
https://www.youtube.com/@fairywoodlightrailway
- dewintondave
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Re: Wild Rose ~ Quarry Hunslet
Thank you lads. When I built the steam diesel I bought a wide selection of gas jets that are spare parts for camping stoves from our local big box store. They range from 0.11mm to 0.23mm, the steam diesel is using the 0.23mm jets
Yesterday I was testing this new burner with a 0.17mm jet and it wouldn't light at all outside. I tried it in the firebox and got a great big backfire (Mrs B thought it was from out on the street) I swapped the jet for the 0.11mm and it lit easily as seen on the video.
Todays testing the burner with this same jet outside of the firebox showed some interesting results. It doesn't matter how far in the burner the tube is, the result is the same. But when I flipped the burner tube around to use the wrong end for the jet holder the flame was much better. For this burner having the entrainment holes further than usual from the jet helped.
Yesterday I was testing this new burner with a 0.17mm jet and it wouldn't light at all outside. I tried it in the firebox and got a great big backfire (Mrs B thought it was from out on the street) I swapped the jet for the 0.11mm and it lit easily as seen on the video.
Todays testing the burner with this same jet outside of the firebox showed some interesting results. It doesn't matter how far in the burner the tube is, the result is the same. But when I flipped the burner tube around to use the wrong end for the jet holder the flame was much better. For this burner having the entrainment holes further than usual from the jet helped.
Best wishes,
Dave
Dave
Re: Wild Rose ~ Quarry Hunslet
I'm not a particular fan of ceramic burners. The only one I've built was no better at boiling water than a poker burner with the same size jet. I can see the point of using them in locos designed for dual coal and gas firing, but remain unconvinced otherwise.
I'n considering building a perforated plate type as an alternative to the ceramic burner, to see if it gives any improvement in output.
A few more points to think about, from the poker burner side of the fence.......
Butane has a narrow flammability range, 1.6-8.4%v/v in air is usually quoted. The range for Propane is similar.
Which means there's not much wiggle room to get it right, especially as we want to be close to the stochiometric ratio of butane to air which is 3.2% by volume. The heat output will start to drop as the air fuel ratio moves away from that point.
All my operational boilers have poker burners and are around 55% efficient at turning butane and water into steam at 40psi, but I've never seen numbers quoted for ceramic burners. Poker burners work over a gas pressure range of about two, ie. the max heat output with the gas wound right up is about twice the heat output with the gas turned down to the minimum stable flame. The max. heat output is set by the jet size.
With poker burners, I've found the Roundhouse arrangement with rows of holes the quietest type and easy enough to make. The ones with slots are noisier and while they can be quietened with stainless steel mesh inside the poker, it restricts air flow, reduces heat output and can make the burner harder to light. I also found that putting a few strands of teased out stainless steel wool inside the poker quietened things down, but that also restricted air flow and reduced heat output.
The most interesting poker burner I own came in an Aster Krauss kit. The poker is formed from perforated stainless steel sheet and suspended in the centre of the flue. It burns very quietly, as the gas velocity is low and the efficiency is as good as the Roundhouse design.
Regards,
Graeme
I'n considering building a perforated plate type as an alternative to the ceramic burner, to see if it gives any improvement in output.
A few more points to think about, from the poker burner side of the fence.......
Butane has a narrow flammability range, 1.6-8.4%v/v in air is usually quoted. The range for Propane is similar.
Which means there's not much wiggle room to get it right, especially as we want to be close to the stochiometric ratio of butane to air which is 3.2% by volume. The heat output will start to drop as the air fuel ratio moves away from that point.
All my operational boilers have poker burners and are around 55% efficient at turning butane and water into steam at 40psi, but I've never seen numbers quoted for ceramic burners. Poker burners work over a gas pressure range of about two, ie. the max heat output with the gas wound right up is about twice the heat output with the gas turned down to the minimum stable flame. The max. heat output is set by the jet size.
With poker burners, I've found the Roundhouse arrangement with rows of holes the quietest type and easy enough to make. The ones with slots are noisier and while they can be quietened with stainless steel mesh inside the poker, it restricts air flow, reduces heat output and can make the burner harder to light. I also found that putting a few strands of teased out stainless steel wool inside the poker quietened things down, but that also restricted air flow and reduced heat output.
The most interesting poker burner I own came in an Aster Krauss kit. The poker is formed from perforated stainless steel sheet and suspended in the centre of the flue. It burns very quietly, as the gas velocity is low and the efficiency is as good as the Roundhouse design.
Regards,
Graeme
- dewintondave
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Re: Wild Rose ~ Quarry Hunslet
Well, what an interesting subject this is.
I thought I'd have some fun with an overly long gas tube, first with 2 air holes then 3 then 4. With 2 air holes the gas tube made a great bunsen burner, but with all 4 only a small flame could be maintained before it got blown out. The long tube gave the best gas burner burn too.
I thought I'd have some fun with an overly long gas tube, first with 2 air holes then 3 then 4. With 2 air holes the gas tube made a great bunsen burner, but with all 4 only a small flame could be maintained before it got blown out. The long tube gave the best gas burner burn too.
Best wishes,
Dave
Dave
Re: Wild Rose ~ Quarry Hunslet
Bunsen Burners.....Those were the days.....
ROD
Life is so easy when I run my trains.
https://gardenrails.org/forum/viewtopic ... 41&t=11364
https://www.youtube.com/@fairywoodlightrailway
Life is so easy when I run my trains.
https://gardenrails.org/forum/viewtopic ... 41&t=11364
https://www.youtube.com/@fairywoodlightrailway
- dewintondave
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Re: Wild Rose ~ Quarry Hunslet
Happiest days of our lives eh Rod
Here's one I prepared earlier, the rosebud grate and ash pan. I used the grate as a drilling jig for the gas burner. There was no way I was going to drill those holes the hard way again
Best wishes,
Dave
Dave
Re: Wild Rose ~ Quarry Hunslet
Great idea for saving you some time and perhaps frustration Dave....
ROD
Life is so easy when I run my trains.
https://gardenrails.org/forum/viewtopic ... 41&t=11364
https://www.youtube.com/@fairywoodlightrailway
Life is so easy when I run my trains.
https://gardenrails.org/forum/viewtopic ... 41&t=11364
https://www.youtube.com/@fairywoodlightrailway
- dewintondave
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Re: Wild Rose ~ Quarry Hunslet
No I haven't, infact with the standard length burner tube which I'm using, the front row aren't alight outside of the firebox.
With the gas turned right up with the burner in the firebox the flame had an orange tinge to it last night, which is good as the loco will have draught at all times in use.
Best wishes,
Dave
Dave
- dewintondave
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Re: Wild Rose ~ Quarry Hunslet
What I've done
Recently I've reduced the length of the regulator handle, it was far too long
What I've got to do
Finish the firebox door Mount the whistle Plumb-in the whistle Make mountings to secure the grate and gas burner
Recently I've reduced the length of the regulator handle, it was far too long
What I've got to do
Finish the firebox door Mount the whistle Plumb-in the whistle Make mountings to secure the grate and gas burner
Best wishes,
Dave
Dave
Re: Wild Rose ~ Quarry Hunslet
It's still very impressive Dave. I do love your workmanship.
I am really looking forward to seeing her running with a full head of steam.
I am really looking forward to seeing her running with a full head of steam.
ROD
Life is so easy when I run my trains.
https://gardenrails.org/forum/viewtopic ... 41&t=11364
https://www.youtube.com/@fairywoodlightrailway
Life is so easy when I run my trains.
https://gardenrails.org/forum/viewtopic ... 41&t=11364
https://www.youtube.com/@fairywoodlightrailway
- tom_tom_go
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Re: Wild Rose ~ Quarry Hunslet
Regulator handle looks much better, I didn't realise it was the large before.
The cab layout is very organised, I like it.
The cab layout is very organised, I like it.
- dewintondave
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Re: Wild Rose ~ Quarry Hunslet
The fire hole door is done. It's got a counterweight to keep it closed. I had fun blackening the steel weight in old mower oil yesterday
Best wishes,
Dave
Dave
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