Search found 23 matches
- Sun Dec 15, 2019 6:30 pm
- Forum: Technical - Engines and Boilers
- Topic: Compound engine cylinder proportion
- Replies: 17
- Views: 13110
Re: Compound engine cylinder proportion
Thank you Wesley, now I have some more to study and compare!
- Sun Dec 15, 2019 3:12 pm
- Forum: Technical - Engines and Boilers
- Topic: Compound engine cylinder proportion
- Replies: 17
- Views: 13110
Re: Compound engine cylinder proportion
I know you can get away with many things in model size. But even if it doesn't matter much in the end, I'd like to know, why I'm doing what I'm doing
So, all insights much appreciated!
So, all insights much appreciated!
- Sat Dec 14, 2019 5:10 pm
- Forum: Technical - Engines and Boilers
- Topic: Compound engine cylinder proportion
- Replies: 17
- Views: 13110
Re: Compound engine cylinder proportion
A most popular model compound engine bt Stuart "Compound Launch Engine" HP=3/4 inch (19mm) LP=1-1/4 inch (31.75mm) diameters x 7/8 inch (22.25mm) stroke, gives a volume ratio of 2.78 A Stuart 6A, large enough to power a real launch: Stuart "Compound 6A Engine" HP=2-1/2 inch (63.5mm) LP=4 inch (101....
- Fri Dec 13, 2019 6:12 pm
- Forum: Technical - Engines and Boilers
- Topic: Compound engine cylinder proportion
- Replies: 17
- Views: 13110
Re: Compound engine cylinder proportion
Thank you. What I have in mind is a small model engine. It would be non-condensing. I have here 2 cylinders which I could use, their volume ratio being 1.96, so roughly 1:2. The stroke is 11 mm and the bores are 8 mm and 11 mm. What I'd like to know if using these two cylinders at a pressure of say ...
- Thu Dec 12, 2019 5:59 pm
- Forum: Technical - Engines and Boilers
- Topic: Compound engine cylinder proportion
- Replies: 17
- Views: 13110
Re: Compound engine cylinder proportion
Hello, thanks for the replies. Please don't just mention the cylinder bores for HP and LP, but also the stroke.
- Wed Dec 11, 2019 6:34 pm
- Forum: Technical - Engines and Boilers
- Topic: Compound engine cylinder proportion
- Replies: 17
- Views: 13110
Compound engine cylinder proportion
Hello all, I am looking for some information regarding the design of compound steam engines. More specifically, what the proportion between the high pressure and low pressure cylinders should be in terms of working volume. I couldn't find anything so far, but I assume this topic should have been a m...
- Sat Oct 12, 2019 11:38 am
- Forum: Technical - Engines and Boilers
- Topic: My column-style steamengine
- Replies: 79
- Views: 239219
Re: My column-style steamengine
Nice idea removing all that excess metal from the cylinder body. It should work better now that it has less mass to dissipate the heat and more insulation to keep it in.
- Sat Oct 12, 2019 10:13 am
- Forum: Members' Websites and Boats
- Topic: DetroiTug's Tug is going together
- Replies: 388
- Views: 395443
Re: DetroiTug's Tug is going together
Your tug is really beautiful. I enjoyed watching the videos you posted. And I wouldn't mind watching some more
Do you have a cabin in it for sleeping or is it just a day cruiser?
Do you have a cabin in it for sleeping or is it just a day cruiser?
- Sun Sep 08, 2019 10:50 am
- Forum: Members' Websites and Boats
- Topic: Frances-Anne
- Replies: 94
- Views: 146128
Re: Frances-Anne
That's a very elegant boat!
- Thu Sep 06, 2018 9:55 pm
- Forum: General Steamboat stuff
- Topic: New Forum
- Replies: 11
- Views: 11549
Re: New Forum
Where did the forum logo disappear? It now only says "phpBB" in large unfriendly letters, at least when viewed from an Android tablet.