Search found 882 matches

by barts
Thu Jan 02, 2020 9:04 pm
Forum: Technical - non Engines and Boilers
Topic: Electrical system for boat
Replies: 34
Views: 2897

Re: Electrical system for boat

Still a work in progress though, I need to sort out a governor for it as it can only deal with steady loads at the moment, i.e. lighting and battery charging. I'd definitely use a battery to help regulate the output of your generator as the output voltage is likely to shoot up if the load decreases...
by barts
Tue Oct 22, 2019 1:53 am
Forum: Technical - non Engines and Boilers
Topic: Depth Sounders?
Replies: 7
Views: 1566

Re: Depth Sounders?

I wouldn't get too worried. Otter's prop has been 'hanging low' w/o even a preceding skeg for the almost 30 years she's been steaming. Yes, I've grounded the prop on a rock a time or two, but nothing really bad that a bit of light filing didn't clean up. I do stand and slow down when steaming in sha...
by barts
Sun Oct 13, 2019 4:17 pm
Forum: Technical - Engines and Boilers
Topic: Lune Valley Burner
Replies: 1
Views: 322

Re: Lune Valley Burner

I think that valve mechanism is designed to control fuel flow while maintaining a relatively constant jet velocity, and providing a needle type orifice that can be cleared by cycling the valve. The construction isn't clear, but I'd guess the vertical needle has a slot that is engaged by a fork threa...
by barts
Wed Aug 21, 2019 5:51 am
Forum: Technical - non Engines and Boilers
Topic: Electrical system for boat
Replies: 34
Views: 2897

Re: Electrical system for boat

To make boiler nipples removable, use neverseize. There's one w/ PFTE specifically called out for steam piping. Teflon tape works as well, but the goop is better. RectorSeal #5 is similar - I've had no troubles removing boiler nipples after 10 years. To prevent corrosion, paint fittings with moistur...
by barts
Tue Aug 20, 2019 6:45 am
Forum: Technical - non Engines and Boilers
Topic: Electrical system for boat
Replies: 34
Views: 2897

Re: Electrical system for boat

If you're interested in more of a period piece, there are various articles on the net about making slow speed generators for wind turbine use. These could support direct drive from our steam engines; some skill w/ electronics would be needed to properly regulate the output, but this could look very ...
by barts
Sun Aug 18, 2019 1:54 am
Forum: Technical - non Engines and Boilers
Topic: Electrical system for boat
Replies: 34
Views: 2897

Re: Electrical system for boat

If you have a rigid canopy, solar panels make a lot of sense if your climate isn't too sunless. A couple of 100w panels and you're set. Large boats fit alternators, but I've seen those only on 35-40 footers. Most small boats just pack enough battery to last a weekend. Rainbow, our 26' ex-Navy whaleb...
by barts
Thu Jun 27, 2019 5:49 am
Forum: Technical - Engines and Boilers
Topic: Burning corn as fuel?
Replies: 8
Views: 853

Re: Burning corn as fuel?

It's certainly possible, of course. However, the cost of the fuel (unless you've got a pretty big boat) is a tiny part of the expenses of maintaining a boat, and it's not trivial getting pellet fuels to burn at the desired rate, esp. w/o forced draft. Rats would pose a problem - a ship's cat might b...
by barts
Wed Jun 26, 2019 1:55 am
Forum: Technical - Engines and Boilers
Topic: Gas-fired LaMont boiler
Replies: 12
Views: 1346

Re: Gas-fired LaMont boiler

When I wound the 1/2" (~13 mm) tubing for Otter's boiler, I filled the tubes w/ sand. For very small tubes, you might want to consider Cerro bend or other very low melting point (below 100 C) metal alloys to prevent tube collapse.

- Bart
by barts
Sun Jun 23, 2019 10:02 pm
Forum: Technical - Engines and Boilers
Topic: Oil burner consumption
Replies: 30
Views: 2665

Re: Oil burner consumption

If you know how many lbs/hour of wood your plant consumes, you can easily calculate estimated oil consumption. https://mha-net.org/docs/v8n2/docs/WDBASICS.pdf Assuming about 7000 btu/lb of air dried wood and 140k btu/gallon of diesel and 7 lbs of diesel/gallon, Estimated burn of 40 lbs of wood/hour ...
by barts
Sun Jun 23, 2019 9:49 pm
Forum: Technical - Engines and Boilers
Topic: Cladding Problem - Need Advice
Replies: 6
Views: 862

Re: Cladding Problem - Need Advice

The exhaust steam temperature is going to be determined by the number of expansions of the steam. If your engine was running at 100% cut-off, the exhaust steam would be at a temperature determined by the constant-heat expansion (same as a throttling valve) of the input steam. 150 psi saturated steam...