Search found 14 matches

by Adamsmi1
Sun Jun 16, 2019 5:09 am
Forum: Technical - Engines and Boilers
Topic: Increasing a VFT boilers output by increasing the firebox size
Replies: 17
Views: 1299

Re: Increasing a VFT boilers output by increasing the firebox size

Fred, I realised when I did the Celsius to Fahrenheit conversion for these numbers i misread what the ideal condensate temp was (40°f) not celsius so i can see why plugging a shell and tube HX has no merit.. Heres some figures from a run i went on today, Feedwater 108°f Steam inlet 262°f Exhaust 131...
by Adamsmi1
Fri Jun 14, 2019 7:26 am
Forum: Technical - Engines and Boilers
Topic: Increasing a VFT boilers output by increasing the firebox size
Replies: 17
Views: 1299

Re: Increasing a VFT boilers output by increasing the firebox size

Ron, Sounds like a straight funnel is the way to go, I just need to work out the proportions so to maximize the high without it looking funny. Fred, I've been thinking of a condenser idea. The one i have at the moment is a keel condenser. My idea was to have an inboard condenser like a shell and tub...
by Adamsmi1
Tue Jun 11, 2019 8:26 am
Forum: Technical - Engines and Boilers
Topic: Increasing a VFT boilers output by increasing the firebox size
Replies: 17
Views: 1299

Re: Increasing a VFT boilers output by increasing the firebox size

Fred thanks again! I too appreciate you sharing your knowledge. Okay so let me try my best to explain back to see if i understand. Condensate temp should be as low as possible to provide maxiumum vaccum, so adequate cooling water should flow in the condenser and a vac pump to allow this. Feed water ...
by Adamsmi1
Sat Jun 08, 2019 7:52 am
Forum: Technical - Engines and Boilers
Topic: Increasing a VFT boilers output by increasing the firebox size
Replies: 17
Views: 1299

Re: Increasing a VFT boilers output by increasing the firebox size

Cheers Ron, Odd coincidence indeed haha My tube size is 3/4" Ive read of people using tubulators only to the water level I believe the boiler was designed for hard firing, I guess oil could be used too tho. Is there a way to work out how much draft you can get through the tube passage and proportion...
by Adamsmi1
Sat Jun 08, 2019 7:41 am
Forum: Technical - non Engines and Boilers
Topic: Southworth 12" Vertical pumps
Replies: 76
Views: 31607

Re: Southworth 12" Vertical pumps

Thanks for the reply Ron,

Its great to hear how things perform in real life.

A few note worthy improvements..

Adam
by Adamsmi1
Fri Jun 07, 2019 12:34 am
Forum: Technical - Engines and Boilers
Topic: Increasing a VFT boilers output by increasing the firebox size
Replies: 17
Views: 1299

Re: Increasing a VFT boilers output by increasing the firebox size

Cheers Fred, Sounds like a tube water wall could be too risky.. Could you counter act the flue restrictions by increasing the funnel dia and/or smokebox height? Is there a rule of thumb for determining how many ft2 the economizer needs to be? Ill have a sketch and post some photos of the ideas soon....
by Adamsmi1
Thu Jun 06, 2019 8:55 am
Forum: Technical - Engines and Boilers
Topic: Increasing a VFT boilers output by increasing the firebox size
Replies: 17
Views: 1299

Increasing a VFT boilers output by increasing the firebox size

Hey everyone, I'm looking to get a few more pounds out of my boiler and I had the idea of making a larger firebox to sit under the pressure vessel. I run on saltwater a lot so a stack blast of exhaust or boiler steam isn't feasible Would there be any negative knock on effects of this that i cant see...
by Adamsmi1
Thu Jun 06, 2019 7:39 am
Forum: Technical - non Engines and Boilers
Topic: Southworth 12" Vertical pumps
Replies: 76
Views: 31607

Re: Southworth 12" Vertical pumps

After 6 years in service how have the pumps held up?
by Adamsmi1
Tue Feb 12, 2019 7:53 am
Forum: Technical - Engines and Boilers
Topic: Favourite cylinder lubrication
Replies: 14
Views: 1862

Re: Favourite cylinder lubrication

Thanks for the replies Gents Im planning slight super heat and like tinkering with the boat attached are some drawings of what im thinking. one being the separator design, a capped end and the other a removable cap with the inlet and outlet to allow filter medium to be refreshed. Oil floats on water...