Search found 186 matches
- Sun Jan 05, 2020 5:05 pm
- Forum: Technical - Engines and Boilers
- Topic: VFT tube leak
- Replies: 54
- Views: 51219
Re: VFT tube leak
Latent Heat is the term I think you're thinking of.
- Sat Jan 04, 2020 7:44 pm
- Forum: Technical - Engines and Boilers
- Topic: VFT tube leak
- Replies: 54
- Views: 51219
Re: VFT tube leak
I
I hope this one works better- Sat Jan 04, 2020 7:26 pm
- Forum: Technical - Engines and Boilers
- Topic: VFT tube leak
- Replies: 54
- Views: 51219
Re: VFT tube leak
The posted image is in reply to Mikes comments related to the effects of fluid films on heat transfer across a tube wall. The image is from Chapter 8- introduction to thermodynamics, Principles of Naval Engineering, NAVPERS 10788-B
- Tue Jun 18, 2019 10:40 pm
- Forum: Technical - Engines and Boilers
- Topic: Best (Easiest) method to check dissolved oxygen levels in make up water.
- Replies: 2
- Views: 3595
Re: Best (Easiest) method to check dissolved oxygen levels in make up water.
Capt. Mack The easiest way is to not measure the DO at all?! On the ST Portland we are using AGK100 a Drew Marine product that contains Hydrazine and a corrosion inhibitor, also sold as separate compounds under the name Drewplex. We use two test kits one for hydrazine and one for hydrate alkalinity....
- Sun Jun 09, 2019 11:40 pm
- Forum: General Steamboat stuff
- Topic: Steamboating Magazine
- Replies: 8
- Views: 6202
Re: Steamboating Magazine
I just got a reply that Ron is alive and living in Portland, but the source was not able to provide any other info?
So Where in the World is Ron Fossum?
David Vik
So Where in the World is Ron Fossum?
David Vik
- Sat Jun 08, 2019 8:14 pm
- Forum: General Steamboat stuff
- Topic: Steamboating Magazine
- Replies: 8
- Views: 6202
Re: Steamboating Magazine
Last time I saw Ron was a couple of years ago when he stopped by the Portland and left some copies of Steamboating Magazine. He was listed in the 2018 NWSS membership list, but does not appear in the 2019. Queries of local steamers did not provide any better information. David Vik PS: The Portland w...
- Fri Apr 13, 2018 3:37 pm
- Forum: Technical - non Engines and Boilers
- Topic: practice hull
- Replies: 12
- Views: 10211
Re: practice hull
Mike, Foley has kinda become your hallmark. When someone at a steam up would ask which one is Lopez Mike it was easy to tell them to look for the guy with the big ugly flat sheared boat. Now we may have to start telling them he's the one with the straw hat and seersucker suit.!? Great job and I hope...
- Mon Apr 09, 2018 4:26 pm
- Forum: Technical - Engines and Boilers
- Topic: Steam Actuated Inlet Valves?
- Replies: 68
- Views: 43503
Re: Steam Actuated Inlet Valves?
In this application the arrangement is mostly so that the pump never hangs between up and down strokes, My experience on a Fletcher Class destroyer with Worthington vertical pumps, that had free piston main valves, was often one of frustration. Not if, but when the main valve hung-up the only way t...
- Wed Apr 04, 2018 3:17 am
- Forum: Technical - Engines and Boilers
- Topic: Resources/Information for Crank Lubrication?
- Replies: 118
- Views: 72286
Re: Resources/Information for Crank Lubrication?
Mike, This should be easier to see I hope. I'll try to get some wide shots, but from the eccentrics to the engine cylinder is around 25ft so it's hard to get an all in one. Just for fun I tossed in a shot of the crosshead with drip oilers. There are 19 per side not counting the pressure oilers. This...
- Wed Apr 04, 2018 12:20 am
- Forum: Technical - Engines and Boilers
- Topic: Resources/Information for Crank Lubrication?
- Replies: 118
- Views: 72286
Re: Resources/Information for Crank Lubrication?
This is the reversing link for the ST Portland's port cylinder. Note that the "Stephenson" link has a suspension link that is attached at the center, but fixed so that it can only sway back and forth as the link moves. Reversing is done by shifting the 11' long rod to the valves up and down, and thu...