Search found 937 matches

by barts
Sat May 08, 2021 4:06 am
Forum: Technical - non Engines and Boilers
Topic: need Steam Separator
Replies: 4
Views: 114

Re: need Steam Separator

A off-center inlet would help separation by spinning the steam. Some other relatively easily fabricated separators can be seen here:
https://www.spiraxsarco.com/learn-about ... separators

- Bart
by barts
Mon Apr 12, 2021 5:02 pm
Forum: Technical - non Engines and Boilers
Topic: Steam Atomizing Burner
Replies: 12
Views: 1347

Re: Steam Atomizing Burner

I have two ball valves in line before the steam regulator(bronze), I usually keep them both shut when not in use. What are the risks if some propane started making it toward the boiler? Most of the valves are bronze, I don't think it would last very long in the boiler and I can't identify a potenti...
by barts
Thu Apr 01, 2021 3:49 pm
Forum: Technical - Engines and Boilers
Topic: Simple Condensor Design?
Replies: 8
Views: 625

Re: Simple Condensor Design?

I would still bring the condensate back aboard and put it in a hot well, because: 1) The condensate is (modulo steam oil, if any) pure water, free of minerals, etc. If you keep putting lake water in the boiler, you will need to blowdown more frequently as the minerals will concentrate in the boiler....
by barts
Wed Mar 31, 2021 8:48 pm
Forum: Technical - Engines and Boilers
Topic: Simple Condensor Design?
Replies: 8
Views: 625

Re: Simple Condensor Design?

The vacuum in a condenser is created by the reduction in volume of the condensing steam. A pump will be required to extract the condensate and maintain the vacuum. If your goal, as in Mikes case, is to reuse the water in order to extend his range, then a simple tube of the right length will work fi...
by barts
Thu Mar 25, 2021 4:46 pm
Forum: Technical - non Engines and Boilers
Topic: Plain Bearing materials
Replies: 7
Views: 725

Re: Plain Bearing materials

This is an interesting quick read:

https://polyfluoroltd.com/blog/demystifying-iglidur/

- Bart
by barts
Wed Mar 24, 2021 9:13 pm
Forum: Technical - Engines and Boilers
Topic: Simple Condensor Design?
Replies: 8
Views: 625

Re: Simple Condensor Design?

I'm running a 6HP Twin 3"x4", and without adding an airpump I'm wondering if I would get any benefit to having the exhaust run down a long pipe under the water surface along one of the pontoons. My length is 24', I'm guessing at 10ft of 3/4"-1" copper pipe? It will be much quieter.... Your best mov...
by barts
Wed Mar 24, 2021 4:49 pm
Forum: Technical - non Engines and Boilers
Topic: Plain Bearing materials
Replies: 7
Views: 725

Re: Plain Bearing materials

Sintered bronze works very well indeed, and is forgiving of a momentary loss of lubrication, which the solid bronze alloys are not, often scoring the journal if left to continue. A friend has had very good luck on his powerful steeple compound with bronze bearing shells with a thin layer of tin babb...
by barts
Tue Mar 23, 2021 5:15 pm
Forum: Technical - non Engines and Boilers
Topic: Steam Atomizing Burner
Replies: 12
Views: 1347

Re: Steam Atomizing Burner

Yes, this scheme works pretty well; I've had a similar arrangement on Otter for many years. From personal experience - make sure that the propane cannot flow backwards into the steam plumbing, and vice versa. Use good leak tight checks for that service. Sooner or later you'll make a mistake, and you...
by barts
Mon Mar 08, 2021 5:27 pm
Forum: Technical - Engines and Boilers
Topic: Ball Bearings
Replies: 6
Views: 555

Re: Ball Bearings

Bart, I would be careful with VXB, they have no quality control at all. I've purchased about 20,000 bearings from them over the years and stopped about four years ago, will not buy from them now. Races were fracturing for no reason, obvious ''monkey metal''. Coupled with poor tolerances, varying 2 ...
by barts
Mon Mar 08, 2021 4:14 pm
Forum: Technical - Engines and Boilers
Topic: Ball Bearings
Replies: 6
Views: 555

Re: Ball Bearings

I've used dual thin-line ball bearings on the eccentric for a 2x2.5" high-speed steam engine I built from a refrigeration compressor with excellent results. These were not sealed for life, but open bearings; I gave them a shot of oil now and then and they lasted until the main bearings finally wore ...