water inlets on ship

Tex,

You can always root for another burg's team, if you prefer. g

Happy Easter to all!

--
Mike Kanze

"The hot dog is the reductio ad absurdum of American eating. The Sicilian
in the ditch, though he may never be President, knows better: he puts a
slice of onion between his slabs of bread, not a cartridge filled with the
sweepings of abattoirs."

- H. L. Mencken (1926)

Hooray for the start of ballpark franks and Major League Baseball this week!


"Tex Houston" wrote in message
...

"Mike Kanze" wrote in message
...
Hooray for the start of ballpark franks and Major League Baseball this
week!


We don't have professional baseball here. We have the Colorado Rockies.

Tex

"Mike Kanze" wrote in message
...
Tex,

You can always root for another burg's team, if you prefer. g

Happy Easter to all!

--
Mike Kanze


I did a random drawing and got the Chicago Cubs. Is that a good thing?

Tex

think about it
what would seawater do to the system
look to nuc subs for solution

"mah" wrote in message ...
Not really an aviation topic, but at least naval.

Was looking at a book on the Iowa class battleships. Went through the
engineering section and saw the design of the engines. A thought came
to mind - where does the cooling water come from or are they single pass
engines with the steam exhausted overboard. That sounds grossly
inefficient and makes more sense to have a closed loop design with
cooling water.

Is there a set of scoops below the waterline or some type of flush
opening below the waterline to draw in seawater for cooling? Or is it
all "fresh" water that has been drawn through the evaporators.

Is the system similar on any ship? (There, finally a tie into aviation
if a carrier uses a similar powerplant)

Thanks in advance

MAH

tex- We don't have professional baseball here. We have the Colorado Rockies.
BRBR

No ****....Cleveland(home town) isn't doin' well either. How 'bout them Tigers
tho!!!
P. C. Chisholm
CDR, USN(ret.)
Old Phart Phormer Phantom, Turkey, Viper, Scooter and Combat Buckeye Phlyer

In article ,
(Pechs1) wrote:

keith- Pretty much. Even gas turbine and diesel ships need cooling water
and nuclear power is just a diiferent way of boiling water. BRBR


But cooling water for the nukes is a closed system, yes? I know they
still take
on water to make for drinking and the cats, but for cooling of the nuke power
plant, that doesn't go over the side-or does it??

One of my early jobs was in a 1000 MW generator facility. Coal fired for
commercial power, but there's really no difference in principle, just in
size.

The water used in the steam system needs to be ultra, ultra clean
and pH 7.000
Any contamination will erode away the boiler tubes and cause leaks right
quick. It is a constant problem. Each power plant has their own chemical
water purification facility right there on site, and the ships will have that,
too, seperate from the drinking water system.
Since that water is so expensive (in a resources sense) to make, it is
always condensed and recycled. In a properly working system, very
little make-up water is needed. The water quality is constantly monitored
as sudden contamination levels can tell you a lot about what's happening
inside and can be used to prevent disasters.
To cool the condensers we used river water (the Ohio river in my case)
but seawater works well, too. It's just the constant crap that's in
the water attaching itself to the condenser fins, which reduces thermal
performance and makes a backwash necessary occasionally to get rid
of it. Biologics and some kind of slime. I imagine barnacles would get
in there too.

--
Harry Andreas
Engineering raconteur