Search found 69 matches

by TriangleTom
Mon Apr 15, 2019 12:46 am
Forum: Technical - Engines and Boilers
Topic: Desuperheater question
Replies: 15
Views: 955

Re: Desuperheater question

Adding a couple of points to Bart's list, needed to comply with the ASME Boiler and Pressure Vessel Code: No. 6 Boiler check valve, followed by an Isolation Valve If the economizer can be isolated and bypassed, then the economizer itself requires pressure relief protection because it then becomes a...
by TriangleTom
Sat Apr 06, 2019 3:02 am
Forum: Technical - Engines and Boilers
Topic: Desuperheater question
Replies: 15
Views: 955

Re: Desuperheater question

Trying to wrap my head around the concept a little bit. First, why use a steam coil instead of a water coil? If you're worried about burning out the coil, water would transfer heat away faster, and should prolong service life. It would also make one hell of an economizer, especially if steam product...
by TriangleTom
Sun Mar 31, 2019 6:00 pm
Forum: Technical - Engines and Boilers
Topic: Opposed-Piston Engine Project - The Steam Version
Replies: 41
Views: 3209

Re: Opposed Piston Engine Project - The Steam Version

Maltelec wrote:
Sat Mar 30, 2019 8:39 pm
This (if it shows ok) is one I have designed.
That's a really clever and fascinating design. How do you anticipate dealing with condensation in the crankcase?
by TriangleTom
Tue Mar 19, 2019 2:58 am
Forum: Technical - non Engines and Boilers
Topic: Boiler feed pump ?
Replies: 17
Views: 1376

Re: Boiler feed pump ?

Ian, I've been giving a lot of thought to this lately as I re (x4) design my engine. Given the general difficulty in sourcing a feedwater pump, it doesn't seem that constructing one should be extremely difficult by comparison. A single-acting pump should be able to work with some heavy steel flanged...
by TriangleTom
Tue Feb 12, 2019 3:54 am
Forum: Technical - Engines and Boilers
Topic: Favourite cylinder lubrication
Replies: 14
Views: 1319

Re: Favourite cylinder lubrication

I believe Cyberbadger purchased a few gallons of Chevron W460 a few years ago to try in his engine, I do't believe he ever gave a report on how it worked though.
by TriangleTom
Tue Feb 05, 2019 8:00 am
Forum: General Steamboat stuff
Topic: Marina Difficulties?
Replies: 3
Views: 1136

Marina Difficulties?

Has anyone experienced difficulties when navigating a marina? Specifically in regards to the fuel docks, and the prohibition of flame in those areas.
by TriangleTom
Mon Jan 21, 2019 8:53 pm
Forum: Technical - Engines and Boilers
Topic: Con-rods and length
Replies: 28
Views: 1537

Re: Con-rods and length

With all the concern about deformation and weld stress, why not build up an engine using threaded connections? It seems like the easiest way to avoid weld issues in the engine would be to avoid welding the engine at all.
by TriangleTom
Wed Jan 16, 2019 10:34 am
Forum: Technical - non Engines and Boilers
Topic: Prop Step Up
Replies: 10
Views: 877

Re: Prop Step Up

It has been "Shake, Rattle and Roll" in my old hull above around 350 r.p.m. but the motor mounts were pretty much a trampoline. We'll see on the new hull. Otter has the same problems w/ her 2.5" x 2.5" single as the counterweights are too small; the old 2" x 2.5" single acting twin was much smoothe...
by TriangleTom
Sun Jan 13, 2019 9:17 am
Forum: Technical - non Engines and Boilers
Topic: Prop Step Up
Replies: 10
Views: 877

Prop Step Up

Is the use step up gearing for the propeller common in steam launches? I've only found reference to it being installed in Cyrene , listed in The Steam Launch , however I am unfamiliar with its implementation other than that a chain drive was used. Given that our engines are typically operated at low...
by TriangleTom
Sat Jan 12, 2019 6:32 am
Forum: Links
Topic: A New Historical Steam Engine Forum
Replies: 3
Views: 13466

Re: A New Historical Steam Engine Forum

Pat-

Thanks for posting this! This is the first I've heard of your forum, I'll be sure to join up.