Search found 879 matches

by barts
Wed Aug 21, 2019 5:51 am
Forum: Technical - non Engines and Boilers
Topic: Electrical system for boat
Replies: 24
Views: 1021

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: 24
Views: 1021

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: 24
Views: 1021

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: 568

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: 944

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: 1593

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: 567

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...
by barts
Tue Jun 18, 2019 1:43 pm
Forum: Technical - Engines and Boilers
Topic: Best (Easiest) method to check dissolved oxygen levels in make up water.
Replies: 2
Views: 262

Re: Best (Easiest) method to check dissolved oxygen levels in make up water.

Hi Captain Mack - I've never seen anyone do this on our small steamboat boilers, but you've got one larger than most and it's used more than most. I'd probably go with an meter, but there are regents as well that one can use to do a visual color comparison, as well as a traditional titration procedu...
by barts
Thu May 16, 2019 2:31 am
Forum: Technical - non Engines and Boilers
Topic: Clinker down to bare wood What do I do next?
Replies: 3
Views: 618

Re: Clinker down to bare wood What do I do next?

Mike is absolutely right - the most durable finish for a stripped carvel/lapstrake boat is paint - something not too hard. Polyurethanes are subject to cracking due to moisture changes in the wood. If you want clear and you are building a epoxy sealed hull (inside & out), then varnish over epoxy is ...
by barts
Wed May 15, 2019 1:54 am
Forum: Technical - non Engines and Boilers
Topic: Clinker down to bare wood What do I do next?
Replies: 3
Views: 618

Re: Clinker down to bare wood What do I do next?

Varnish over bare wood is pretty high maintenance. Epoxy will of course need varnish or polyurethane over it to protect against UV. You may wish to consider Cetol Marine. My brother uses this product on the trim on his 42' ketch with excellent results. https://www.sailmagazine.com/diy/cetolan-altern...