Search found 110 matches

by TriangleTom
Sat Apr 11, 2020 4:44 am
Forum: Technical - Engines and Boilers
Topic: Interesting Regenerative Firebox Design
Replies: 11
Views: 3292

Re: Interesting Regenerative Firebox Design

I can't speak to everything, but: A: The back of my envelope says that with a diesel burner, a 150 degree F temperature increase of the incoming air would result in a roughly 2% decrease in fuel consumption. With that said, that's assuming a perfectly stoichiometric mixture so it would probably be a...
by TriangleTom
Sat Apr 11, 2020 12:43 am
Forum: Technical - Engines and Boilers
Topic: Interesting Regenerative Firebox Design
Replies: 11
Views: 3292

Interesting Regenerative Firebox Design

I saw this design for a regenerative hearth design drawn up by a blacksmith on Reddit https://i.imgur.com/3ZfpmIu.jpg and I think it would have a lot of interesting possibilities as a firebox, especially under forced draft. The addition of the integrated heat exchanger for combustion air preheat see...
by TriangleTom
Tue Apr 07, 2020 10:46 pm
Forum: General Steamboat stuff
Topic: Antidote to Cabin Fever?
Replies: 55
Views: 13076

Re: Antidote to Cabin Fever?

"Would there be enough clearance for a 12x12 prop?" The software I have indicated the 12 x 12 prop (300mm x 300mm) at 500 RPM as approximately ideal, but the actual hull configuration is much more suited to a 9 or 10 inch (225 - 250mm) prop diameter, about 80% of the ideal diameter. No big sacrific...
by TriangleTom
Thu Mar 26, 2020 2:17 pm
Forum: General Steamboat stuff
Topic: How are you fairing?
Replies: 15
Views: 4429

Re: How are you fairing?

We're doing OK here in central Oklahoma. We haven't been hit too hard yet, and people are taking social distancing generally seriously.

My fiancee and I also just bought our first home, so I've been plenty busy chewing through the honey-do list.
by TriangleTom
Sun Mar 22, 2020 3:12 am
Forum: Technical - Engines and Boilers
Topic: Cylinder machining
Replies: 2
Views: 2012

Re: Cylinder machining

Thanks for sharing that!
by TriangleTom
Mon Mar 16, 2020 3:43 am
Forum: Technical - Engines and Boilers
Topic: Quad versus twin compound
Replies: 12
Views: 5872

Re: Quad versus twin compound

Exhausting up the stack should be done with a nozzle to increase velocity, the little steam cars did that to maximize the effectiveness. Traction engines and locomotives did this as well. How big? What shape? I think only R&D would answer that. Ron I believe that in locomitives, the most effective ...
by TriangleTom
Mon Mar 16, 2020 12:30 am
Forum: Technical - Engines and Boilers
Topic: Quad versus twin compound
Replies: 12
Views: 5872

Re: Quad versus twin compound

I took the stock turbochager off my '87 Buick Grand National in the pursuit of more speed and more frequent tire replacements... We put it on my father's launch "George H. Sandin" initially as forced draught. It worked so incredibly well. You have to have very good sealing around the door, lagging,...
by TriangleTom
Tue Dec 17, 2019 7:44 pm
Forum: Technical - Engines and Boilers
Topic: My column-style steamengine
Replies: 74
Views: 18416

Re: My column-style steamengine

Beautiful work on the troughs! I look forward to reading each one of these.
by TriangleTom
Fri Nov 15, 2019 2:51 am
Forum: Technical - Engines and Boilers
Topic: Cylinder Sleeves
Replies: 5
Views: 2618

Re: Cylinder Sleeves

If you have the cylinders cast in aluminum then the thing to do would be to sleeve them with cast iron. Sleeves of almost any size are available from automotive sources. I've been shrinking them in for years. This scheme has the added advantage of allowing you to do a very accurate job of locating ...
by TriangleTom
Fri Nov 15, 2019 2:09 am
Forum: Technical - Engines and Boilers
Topic: Cylinder Sleeves
Replies: 5
Views: 2618

Cylinder Sleeves

I recently called a local foundry to inquire about having my cylinders cast, however I was surprised to learn that while they do work in steel, they won't pour cast iron. I've redesigned my engine to use aluminum cylinders and receivers, but I'm concerned that aluminum may be too soft and will be sc...