The Steamboating Forum

Ohh dear, yes now I understand it, sorry!
Sometimes its difficuld for me to get it all right
I did that on the white painted garage floor.
Stil feel it.
regards piet

No worries Piet...
This was from this summer just before a cruise and in front of my house.....I'll try to find more

I LOVE that engine!

What I wouldn't give for something like that scaled up a few sizes.

The whole package is beautiful.

Yes, yes find more Dave.
She looks a little bit short on the pictures, ha ha
Maybe some of the condenser?
Iám very interested in that.
Piet

Here's some shots of the condenser

1 square foot / HP......OR

.000124 m2 / watt..............





The arrow looking thing at the front is just a fairwater. the copper is made from copper plumbing pipe, with a pin at the front that fits into a hole in the fairwater and lets the condensor expand and contract with temperature...sorry its not prettied up much...still experimenting

It works!


Dave

Nice Dave, thank you.
I'll think the pipes are about 1 inch?
But the lenght of them?
I like the streamline before the condenser, good idea.

Piet

They are actually 3/4 ID tubing which makes the OD about 7/8".

Take the Outside diameter in feet (0.875/12) x 3.1415 x L = 2 (IHP) for my engine.

I have some condenser area ( 1 square foot) in the feedwater heater also, so I think I am putting out a bit over 2 IHP....

L = 8.73 feet approximately which is what it is....for your condenser, it will need to be longer or larger in diameter or both.

so

OD (feet) x 3.14159 x L (feet) = BHP ( I think you said yours was 3)

Using 7/8" OD tubing

(.875/12) x 3.14159 x L = 3

L = 3 /((.875/12) x 3.14159) = 13.096 feet (OK call it 13 and skip the extra 1/8":D)

Dave


PS Oh and Silver solder only!.....if you break you condenser, your in for a fun time keeping afloat....so don't go cheap here...

Thank you Dave,
Its all clear to me now, you are a perfect teacher.
Yes, when I bought the engine in England the seller sad it was about 5 hp. But I think thats a little bit to high. 3 hp is closer I'll think.
I solder everything whit silver, everyting fits than and its fun to do.
Keeping her a float would be nice to start whit I think, thats difficuld enough.

Thanks for the instructions Dave,

Piet

Your welcome Piet...any time.

If you can determine the cut-off of your HP cylinder,and the expected engine speed, I can determine how much steam you will be using. You can usually use 45 pounds /Hp/hour as a good starting point.


Dave

Hi Dave
Nice guy you are, now I lost the way again.
The cut-off of the HP? I know the HP. I know the the stroke and the diameter off the cilinder.
But what is the cut-off?
The boiler I have is can give 185-200 pounds steam an our, firering coal. I use parafine.
So I think something as 160-180 p/u by 150psi.
The engine is 1,5X3+3,5.

Piet