Comments on: Researchers designing all-electric warship http://www.dvorak.org/blog/2007/12/24/researchers-designing-all-electric-warship/ General interest observations and true web-log. Mon, 13 Feb 2012 00:19:31 +0000 hourly 1 http://wordpress.org/?v=3.3.1 By: zxevil164 http://www.dvorak.org/blog/2007/12/24/researchers-designing-all-electric-warship/comment-page-2/#comment-1041621 zxevil164 Wed, 19 Mar 2008 18:18:08 +0000 http://www.dvorak.org/blog/?p=15257#comment-1041621 jp4B7P Cool, bro! jp4B7P Cool, bro!

]]> By: zxevil164 http://www.dvorak.org/blog/2007/12/24/researchers-designing-all-electric-warship/comment-page-2/#comment-1041601 zxevil164 Wed, 19 Mar 2008 18:15:42 +0000 http://www.dvorak.org/blog/?p=15257#comment-1041601 kI9Z2q Cool, bro! kI9Z2q Cool, bro!

]]> By: ECA http://www.dvorak.org/blog/2007/12/24/researchers-designing-all-electric-warship/comment-page-1/#comment-933749 ECA Wed, 26 Dec 2007 16:36:28 +0000 http://www.dvorak.org/blog/?p=15257#comment-933749 be interesting just to use a water jet. All you need to do, is ADD heat..Any form of heat, into a 1 way valve. be interesting just to use a water jet.
All you need to do, is ADD heat..Any form of heat, into a 1 way valve.

]]> By: sleze http://www.dvorak.org/blog/2007/12/24/researchers-designing-all-electric-warship/comment-page-1/#comment-933729 sleze Wed, 26 Dec 2007 16:12:50 +0000 http://www.dvorak.org/blog/?p=15257#comment-933729 "They should install a small nuke plant on this thing. Limitless power and it would never have to refuel." Do a google search for Refueling Complex Overhaul. For a nuclear aircraft carrier, refueling occurs once every 10 or 15 years and each refueling period takes about 5 years. “They should install a small nuke plant on this thing. Limitless power and it would never have to refuel.”

Do a google search for Refueling Complex Overhaul. For a nuclear aircraft carrier, refueling occurs once every 10 or 15 years and each refueling period takes about 5 years.

]]> By: Geoerge http://www.dvorak.org/blog/2007/12/24/researchers-designing-all-electric-warship/comment-page-1/#comment-932101 Geoerge Tue, 25 Dec 2007 05:38:23 +0000 http://www.dvorak.org/blog/?p=15257#comment-932101 Who the hell uses screws anymore? go back to the 80s. Wikipedia it: Impeller. welcome to the 21st century. and god knows how much it cost to come up with that design. Who the hell uses screws anymore? go back to the 80s. Wikipedia it: Impeller. welcome to the 21st century.

and god knows how much it cost to come up with that design.

]]> By: Mike Voice http://www.dvorak.org/blog/2007/12/24/researchers-designing-all-electric-warship/comment-page-1/#comment-932022 Mike Voice Tue, 25 Dec 2007 03:46:25 +0000 http://www.dvorak.org/blog/?p=15257#comment-932022 <i>Warships of all nations have put to sea with electrical cables running here, there, and everywhere since somewhere in the twenties, and there is a large knowledge base of how to handle electricity at sea.</i> Agreed. I served on nuclear submarines, which use steam-driven turbine-generators to generate mega-watts of power to supply all of the ship's [boat's] systems. The article I read on superconducting motors appears to have been in the January 2002 issue of <i>Proceedings</i> - and the synopsis is: "To take full advantage of the all-electric ship design's flexibility and power density, the Navy should consider a direct-current power grid with superconducting, direct-current homopolar generators and propulsion motors." Warships of all nations have put to sea with electrical cables running here, there, and everywhere since somewhere in the twenties, and there is a large knowledge base of how to handle electricity at sea.

Agreed.

I served on nuclear submarines, which use steam-driven turbine-generators to generate mega-watts of power to supply all of the ship’s [boat's] systems.

The article I read on superconducting motors appears to have been in the January 2002 issue of Proceedings – and the synopsis is:

“To take full advantage of the all-electric ship design’s flexibility and power density, the Navy should consider a direct-current power grid with superconducting, direct-current homopolar generators and propulsion motors.”

]]> By: OmarTheAlien http://www.dvorak.org/blog/2007/12/24/researchers-designing-all-electric-warship/comment-page-1/#comment-932001 OmarTheAlien Tue, 25 Dec 2007 03:32:12 +0000 http://www.dvorak.org/blog/?p=15257#comment-932001 Rather than a radical departure this sounds like an evolutionary progression. Warships of all nations have put to sea with electrical cables running here, there, and everywhere since somewhere in the twenties, and there is a large knowledge base of how to handle electricity at sea. A ship at sea is a noisy thing, but let a generator trip off the line and the loudest thing aboard is the sudden silence. Rather than a radical departure this sounds like an evolutionary progression. Warships of all nations have put to sea with electrical cables running here, there, and everywhere since somewhere in the twenties, and there is a large knowledge base of how to handle electricity at sea. A ship at sea is a noisy thing, but let a generator trip off the line and the loudest thing aboard is the sudden silence.

]]> By: Mike Voice http://www.dvorak.org/blog/2007/12/24/researchers-designing-all-electric-warship/comment-page-1/#comment-931983 Mike Voice Tue, 25 Dec 2007 03:04:30 +0000 http://www.dvorak.org/blog/?p=15257#comment-931983 <i>Where the hell are the big guns? Navy boys playing too much Halo.</i> Guns... shhmuns. Its like with planes & ships at the start of the Vietnam War... guns had gone out of favor, and missiles were the future. And then guns had to be retro-fitted to planes and ships because the missiles were too expensive to waste on low-tech targets, or too few missiles could be carried for an extended sortie. The SWATH ships were designed for the then-current love affair with banks of vertical-launch missile batteries... especially if the missiles were on the bridge-section between the pontoons - and the rocket-exhaust could be vented straight-down. Where the hell are the big guns? Navy boys playing too much Halo.

Guns… shhmuns.

Its like with planes & ships at the start of the Vietnam War… guns had gone out of favor, and missiles were the future.

And then guns had to be retro-fitted to planes and ships because the missiles were too expensive to waste on low-tech targets, or too few missiles could be carried for an extended sortie.

The SWATH ships were designed for the then-current love affair with banks of vertical-launch missile batteries… especially if the missiles were on the bridge-section between the pontoons – and the rocket-exhaust could be vented straight-down.

]]> By: Mike Voice http://www.dvorak.org/blog/2007/12/24/researchers-designing-all-electric-warship/comment-page-1/#comment-931971 Mike Voice Tue, 25 Dec 2007 02:56:22 +0000 http://www.dvorak.org/blog/?p=15257#comment-931971 I read an article about the SWATH design, several years ago - when I was still in the navy - in the Navy's own journal of engineering. See the Wiki entry on SWATH http://tinyurl.com/2bft4x At the time - years ago - the electric-motors down in the pontoons couldn't generate enough thrust... so the Navy article was about an engineer's idea to use cryogenically-cooled superconducting windings in the motors. Great efficiency from the motors, but added complexity with cryogenic system to support the motors. There may have been some discussion of superconducting generators, as well. Makes you appreciate why there was so much interest on "room-temperature" superconductors, years ago. :) Quick google search brings-up an old IEEE paper: "Superconducting machinery for naval ship propulsion" http://tinyurl.com/ytnw26 I read an article about the SWATH design, several years ago – when I was still in the navy – in the Navy’s own journal of engineering.

See the Wiki entry on SWATH
http://tinyurl.com/2bft4x

At the time – years ago – the electric-motors down in the pontoons couldn’t generate enough thrust… so the Navy article was about an engineer’s idea to use cryogenically-cooled superconducting windings in the motors.

Great efficiency from the motors, but added complexity with cryogenic system to support the motors.

There may have been some discussion of superconducting generators, as well.

Makes you appreciate why there was so much interest on “room-temperature” superconductors, years ago. :)

Quick google search brings-up an old IEEE paper:
“Superconducting machinery for naval ship propulsion”
http://tinyurl.com/ytnw26

]]> By: gquaglia http://www.dvorak.org/blog/2007/12/24/researchers-designing-all-electric-warship/comment-page-1/#comment-931787 gquaglia Mon, 24 Dec 2007 21:50:00 +0000 http://www.dvorak.org/blog/?p=15257#comment-931787 #9, #11 - Most warships have enough wiring to stretch from coast to coast. I think the Navy has the whole electricity and water thing down. #9, #11 – Most warships have enough wiring to stretch from coast to coast. I think the Navy has the whole electricity and water thing down.

]]> By: MikeN http://www.dvorak.org/blog/2007/12/24/researchers-designing-all-electric-warship/comment-page-1/#comment-931772 MikeN Mon, 24 Dec 2007 21:13:05 +0000 http://www.dvorak.org/blog/?p=15257#comment-931772 water on electrical wires usually isn't a good idea. Call me when they make it solar powered. water on electrical wires usually isn’t a good idea. Call me when they make it solar powered.

]]> By: gquaglia http://www.dvorak.org/blog/2007/12/24/researchers-designing-all-electric-warship/comment-page-1/#comment-931749 gquaglia Mon, 24 Dec 2007 20:39:11 +0000 http://www.dvorak.org/blog/?p=15257#comment-931749 I don't think submarines use an electric motor. Its screw is attached to a steam turbine that is powered by the nuclear reactor. http://www.fas.org/man/dod-101/sys/ship/eng/reactor.html I don’t think submarines use an electric motor. Its screw is attached to a steam turbine that is powered by the nuclear reactor.

http://www.fas.org/man/dod-101/sys/ship/eng/reactor.html

]]> By: bill http://www.dvorak.org/blog/2007/12/24/researchers-designing-all-electric-warship/comment-page-1/#comment-931680 bill Mon, 24 Dec 2007 19:36:01 +0000 http://www.dvorak.org/blog/?p=15257#comment-931680 isn't an electric warship called a 'submarine'? let's build a 'Red October' instead. isn’t an electric warship called a ‘submarine’? let’s build a ‘Red October’ instead.

]]> By: Angel H. Wong http://www.dvorak.org/blog/2007/12/24/researchers-designing-all-electric-warship/comment-page-1/#comment-931679 Angel H. Wong Mon, 24 Dec 2007 19:33:51 +0000 http://www.dvorak.org/blog/?p=15257#comment-931679 #7 Plus, IT'S AN ELECTRIC VEHICLE SURROUNDED BY SEA WATER, one tiny leak and everyone's electrocuted. #7

Plus, IT’S AN ELECTRIC VEHICLE SURROUNDED BY SEA WATER, one tiny leak and everyone’s electrocuted.

]]> By: Greymoon http://www.dvorak.org/blog/2007/12/24/researchers-designing-all-electric-warship/comment-page-1/#comment-931652 Greymoon Mon, 24 Dec 2007 18:50:36 +0000 http://www.dvorak.org/blog/?p=15257#comment-931652 Sharks with lasers - Engage! Sharks with lasers – Engage!

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