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HEY GUYS,
It's our club.
NO GURLS Allowed.
Signed,
Anonomus
by
Bill Gatlin
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SteamStuff
Hello,
A question comes to mind. The rocket bike is, obviously, a rocket! That being the case, pressurized steam is exiting the rear of the thing through a convergent/divergent nozzle. At least I imagine that divergence is involved.
So; if an LSR engine is running at high enough exhaust pressure and an ample supply of steam with the exhaust pipes exiting through convergent/divergent nozzle
by
Bill Gatlin
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SteamStuff
Thanks Dusty,
I have been kicking it around a lot between things that you said and Ken said and things that just pop into my head. I really seems to me then is that the great reason for using, if we can, "Local" sonic to super sonic speeds is to eliminate the insulating boundary layer between the hot combustion gasses and the inside of the fire tube.
Somehow, without designing the
by
Bill Gatlin
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SteamStuff
I could think of all kinds of criticism of this, until I realized that I am just plain jealous and I want one.
Would "they" let him ride at Bonneville?
I wish him the best of fortune.
Bill G.
by
Bill Gatlin
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SteamStuff
Hello Steve,
The condensing boiler used for heating is a boiler that is condensing the combustion exhaust and removing the latent heat from that exhaust.
All that would require is an hydronic system which has a return water temperature of less than 212 deg F. Less is better. This return water then goes through a water to exhaust heat exchanger.
Don't think that they can't mess this up w
by
Bill Gatlin
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SteamStuff
Hello Dusty,
All I can say about your work is WOW!
You are way ahead of me with your boiler design because mainly, well, you are building one. That counts for a whole lot of credit.
I have become somewhat enchanted with the Velox boiler system, modified, of course. I can't leave anything alone.
It seems to me that you must have studied turbines quite a bit. So a question. I have ru
by
Bill Gatlin
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SteamStuff
Thanks Ken,
So it sounds like some of the data is lost as in whether the fire tube was dimpled or not and if so just how. That's OK, I think intuition will help to replace some of it. I sense that a 5/8" ID fire tube would be dimpled only about 1/16" deep, meaning that the inner diameter would vary from 5/8" to 1/2". That would be from a cross sectional area of 0.306
by
Bill Gatlin
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SteamStuff
Hello Ken,
You mentioned once that the Navy P-fired boiler used combustion pressures of about 100 psi. So if they are of an improved Velox design then they were using the supersonic combustion to improve the heat transfer to the fire tube inside? If so, did they dimple the fire tube for greater thermal transfer to the combustion gasses inside it as well as to the water outside it?
To
by
Bill Gatlin
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SteamStuff
Just a comment,
I was/am reading Toms "Steam Generators" book.
It seems that the Velox boiler is the most compact due to the use of sonic to super sonic combustion gasses impinging upon the water tubing. This seems like a good direction to look into.
My first take on the Velox is that it is a fire tube boiler using supersonic velocities inside the fire tubes to get tremendous h
by
Bill Gatlin
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SteamStuff
Hello,
Well I am reading Walton's Doble book. I am finding that my ideas as to generator size are not too far off. Also as with other heat transfer designs such as combustion exhaust to air or air to air, the parameters have quite wide margins.
Rolly will be pleased that I have dropped the idea of a pulse burner. I watched a rocket launch by some college students working in association wi
by
Bill Gatlin
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SteamStuff
Ken,
Do you mean that you found my source? Sources for us technical researchers are jealously guarded! And the money that could have been made. Gone!
Anyway I can see a lot of potential use for your pump. If you would post it over here I'd like to ad it to the mix.
As I said, I like to do the conceptualization part before confounding it with facts. That way I have a better starting p
by
Bill Gatlin
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SteamStuff
Thanks Scott,
I don't use windows yet, however Linux can, if setup, run Windows applications. So if I get it to work I will investigate the RIOT app.
Meanwhile while doing some deep undercover work into some secret files, I found something very interesting. Now remember that such work is not really steeling but is called "RESEARCH". This was found in a really arcane and little k
by
Bill Gatlin
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SteamStuff
Hello Chuk,
I am in a strange place after quite a few years. I have finished a major project to the point that others can take over more and I am in over my head anyway. Steam is still a passion and I can't imagine otherwise. I am also busy building a large box camera for use as a adjunct to that main project. So I am kinda back, I think, at least part time.
Hope this works. I had t
by
Bill Gatlin
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SteamStuff
Thanks Rolly,
I generally like to conceptualize something new before confounding it with facts. I guess I am still in that phase of design.
Whatever the noise level of such a pulse burner might be it simply can't be as bad as these damned boom box or ghetto blaster cars and the ignorant and inconsiderate people that drive them.
Your note about the loudness of such burners is, well, not
by
Bill Gatlin
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SteamStuff
Thanks Ken,
6,000 RPM is faster than I thought it would be. I am thinking of two motors with concentric shafts,one for the spinning cup and one for the pulse. Pulse jets normally used reed valves but this application would require much more durability than reed valves could deliver. The spinning cup would be fed fuel through the hollow motor shaft which spins it.
I have decided to design
by
Bill Gatlin
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SteamStuff
OK,
As I indicated a while ago I am working on a new and improved, radically different and wonderful new boiler design.
Since that, by needs, includes everything I've learned from the steam club and Phorum and with the aid of some outside sources, not to be named but only hinted at, as to increase their level of importance and to also convey a greater sense of mystery as to where such gre
by
Bill Gatlin
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SteamStuff
Thanks Rick,
I hope it turns out looking good. Of course I look forward to maybe getting a ride in it.
My Ofeldt boiler design would use pancake coils and a recirculation pump with the center "storage unit" insulated from the fire. And forced draft. (I get complex)
I'd like to see how yours ends up.
Best,
Bill G.
by
Bill Gatlin
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SteamStuff
Rick,
Is this for the LSR or for a more original looking Stanley car? What is the wheel base you are after? (width)
Best,
Bill G.
by
Bill Gatlin
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SteamStuff
Hi Guys,
Fast question; what is the difference between a dry engine and a wet engine regarding Stanley's?
Thanks,
Bill G.
by
Bill Gatlin
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SteamStuff
Thanks Rolly,
OK, so I just spent about two hours watching videos of old steam engines. They are so darn fascinating I couldn't stop. I just loved that HERRESHOFF engine.
I need to remember that no matter how much I am focused on a modern steam engine not to dismiss the beauty of the older ones. Poetry in motion.
Thanks again,
Bill G.
by
Bill Gatlin
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SteamStuff
Hello Ken & Rolly,
Ken, the Hunter valve gear is interesting, however, I can't see it winding out to 7K.
Fifteen years ago I designed an hydraulic Phaser much like the GM type. I looked on the internet at GM's but couldn't find a big enough drawing of it. The oil pressure controller for the phaser that GM has is of interest as I didn't get that far. Do you have more on that?
My pha
by
Bill Gatlin
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SteamStuff
Thanks Ken,
I'll look into it, now knowing that they exist and what to call them. I guess I never got into them because the lash never needed adjusting.
Anyway, today I figured out how to build a cam shaft that can vary the cutoff while maintaining the correct advance. It takes some tough and hard steel but that's what cam shafts are made of.
So with that kind of a pivot point from an
by
Bill Gatlin
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SteamStuff
Hi,
I don't know where this fits in.
I have been thinking about the two stage receiver-less (almost) compound design. An inline six cylinder compound of 2.5" and 5.0" bores and a stroke of 4- 4/8" will produce 400 HP @ 5000 rpm's.
The expansion ratio varies from 20 to 40 with an input of 1,000 psia @ 1,200 deg F. The first stage expansion is from 5 to 10 in a zero clearan
by
Bill Gatlin
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SteamStuff
Hi,
I looked at some of the Land Speed records at Bonneville. Did you know that some woman went 186 mph on a bicycle? That's what it said.
I wonder what she looks like. A big hairy gorilla comes to mind. Don't tell her I said that.
Anyway I got the stuff I ordered from the SACA store so I will be busy looking through that for some info on boilers. One of the orders was a stack of p
by
Bill Gatlin
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SteamStuff
>someone with enough money and
> other resources. Steam powered vehicles can't
> compete in today's world, though. A steam power
> plant is too complicated, has low efficiency, and
> needs expensive materials
Good God!
Are we really going to kill off all hope?
First the very idea of re-heat was attacked, no one could think of how to make it work in anything but a st
by
Bill Gatlin
-
SteamStuff
Ken,
Did you know I was looking at fighter planes last night? I just love that Spitfire.
It amazes me just how fast the development of war machines was during WW2.
Hurrah for our side.
But now I wish the world leaders would have learned better from that war.
I was going to say more, but that would start a diatribe and I don't think I would want to listen to it, even if it's my own
by
Bill Gatlin
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SteamStuff
Hello Rick,
Well, I believe you are right insofar as the boilers need much more focus. That said it is still the boiler/engine combo that has to work together, and both need to be efficient.
Much of the improvements to IC engine technology have been to get them more efficient. This has also increased their power density to levels unimaginable in the forties and fifties. A friend of mine h
by
Bill Gatlin
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SteamStuff
Hi Rick,
3.5 million BTU /Hr in and 200 HP out is an overall efficiency of 14.5%. There has to be room for improvement. 20% overall efficiency would produce 275 HP. That ought to be obtainable.
Since feed-water heaters use the engine exhaust steam to heat the feed-water there is some economy to be recovered there, as you said. The feed-water can't absorb it all though as there is more he
by
Bill Gatlin
-
SteamStuff
Thanks Guys,
I clicked on the Doble Steam Cars book and was redirected to Amazon but to book 6.
I'll just e-mail Mr. Kimmel.
Best,
Bill G.
by
Bill Gatlin
-
SteamStuff
Thank You George,
I was looking at better efficiencies and a better water rate more based on the engine and boiler I was considering for a 1/4 ton truck. Of course a racing engine has other compromises. Efficiency isn't the main one, overall power density is.
Where do I get the Walton book? I hadn't heard of that years ago when I was much more active in the phorum. I haven't done much sinc
by
Bill Gatlin
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SteamStuff
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