Designing a boat at age 12

[PAR]

I actually know a few Icelandic women and they grow them pretty good up there. If I could get over the crown jewels shriveling up to be a dent where they normally live, cold weather thing, maybe I'd consider moving.

[confused]

4 more days to my b-day. I Hope those stupid dipwads ship my engine on time.

[confused]

http://video.google.com/videoplay?docid=7065205277695921912 watch this.

[sigurd]

Wow that was a sweet looking engine PAR! it looks very light for the power too!?

[PAR]

It's extremely light for its output. I don't know why anyone would want to use a conventional steam engine in light of this innovation. For the price of a small regular steam engine, you could build a few dozen of these, have a lot more output, considerably less weight and low operating pressures.

[sigurd]

crike I want one for my boat! :)

[apex1]

It's extremely light for its output. I don't know why anyone would want to use a conventional steam engine in light of this innovation. For the price of a small regular steam engine, you could build a few dozen of these, have a lot more output, considerably less weight and low operating pressures.

Nostalgie...............Paul, not efficiency.;)
And for your project: I´m shure you know this software:

http://www.steamtablesonline.com/steam97web.aspx
and:
https://analysis.nrel.gov/homer/

if so, it might help others here.

Regards
Richard

[PAR]

So, build a light 'glass sheathing over some foam, that looks like an old boiler and triple expansion engine, with a more efficient, much lighter and easier to live with engine inside. Who'd know. You'd vent through the stack, still could burn stuff for the boiler and burn yourself on steam. All the nostalgia you can want at a fraction of the weight.

[apex1]

So, build a light 'glass sheathing over some foam, that looks like an old boiler and triple expansion engine, with a more efficient, much lighter and easier to live with engine inside. Who'd know. You'd vent through the stack, still could burn stuff for the boiler and burn yourself on steam. All the nostalgia you can want at a fraction of the weight.

I´ll engineer that in deep....... promised.:D

[sigurd]

Is it viable to build the flex rod from carbon tow?
Why do the cylinder look like it is copper, is it not more efficient if it is insulated?

[sigurd]

Oh - I had missed that it is actually possible to buy plans and parts!
The plans page says 20-200psi for the 10hp engine... does it mean you need 200psi to receive 10hp?
edit: doh.. the answer was in a video... 10hp @ 125psi. :blush: I'll try to hold up the horses a bit before the next question.

[apex1]

Is it viable to build the flex rod from carbon tow?
Why do the cylinder look like it is copper, is it not more efficient if it is insulated?

That obviously is just a sample engine, handcrafted to proof it works.
I assume the flex rod to be a steel rope like in a elevator, but Paul can answer that question, I´ll ask.
The pressure of 200psi I reckon, is the peak level the engine can stand. Continous duty should be closer to 100 I´m shure.

Regards
Richard

[sigurd]

"That obviously is just a sample engine, handcrafted to proof it works."

But still very amazing to me that this small and light engine can give 10hp.. If the video is anything to go by, this is not at a very high rotation speed, even.

"I assume the flex rod to be a steel rope like in a elevator, but Paul can answer that question, I´ll ask."

It looks like you are right.

I'll see if I can find out what is required to make a 10-15 bar boiler. I can weld steel. If you got any tips, please tell.

[apex1]

I'll see if I can find out what is required to make a 10-15 bar boiler. I can weld steel. If you got any tips, please tell.

I should, look my avatar. But first I have to work a bit, to keep the oven running, so, maybe tonight.
Regards
Richard

[sigurd]

cool! I started a new thread for the engine and boiler.
http://www.boatdesign.net/forums/propulsion/boiler-design-green-steam-engine-26363.html#post259772