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Turbo-electric transmission

A turbo-electric transmission uses electric generators to convert the mechanical energy of a turbine (steam or gas) into electric energy, which then powers electric motors and converts back into mechanical energy that power the driveshafts.

The battleship USS New Mexico, launched in 1917, was the world's first turbo-electric battleship.

Turbo-electric drives are used in some rail locomotives (gas turbines, e.g. with the first TGV) and ships (steam and more recently gas turbines). An advantage of turbo-electric transmission is that it allows the adaptation of high-speed turbines to slow turning propellers or wheels without a heavy and complex gearbox. It has the advantage of being able to provide electricity for the ship or train's other electrical systems, such as lighting, computers, radar, and communications equipment. Other advantages for ships include greater watertight subdivision,[1][2] quieter operations, and safety (via instant thrust reversal by changing engine direct current polarity) for submarines.[3]

Ships with turbo-electric drive

 
USS Langley, the US Navy's first aircraft carrier, was converted in 1920–22 from the collier USS Jupiter. Jupiter was the US Navy's first turbo-electric ship, commissioned in 1913.
 
USS Tullibee, launched in 1960, was the US Navy's first turbo-electric submarine.

Warships

Battleships

Aircraft carriers

Destroyer escorts

Destroyers

Troop ships

Submarines

Auxiliary ships

Coast Guard cutters

Merchant ships

 
Uruguay. She was launched in 1927 as California, the world's first turbo-electric ocean liner.
 
Normandie, launched in 1932
 
Canberra, launched in 1960, was the first ship with alternating current (AC) turbo-electric transmission.
 
RMS Queen Mary 2, launched in 2003, has gas turbines and is the world's largest turbo-electric ship.
 
Arauca (shown here) and her sister ship Antilla were launched in 1939. Their propulsion systems suffered significant technical failures on their maiden voyages.

Ocean liners

Coastal liners

Ferries

  • TEV Wahine
  • TEV Rangatira – possibly the World's last steam-powered turbo-electric merchant ship; scrapped 2005
  • Union Rotorua and Union Rotoiti were both built as gas turbine ships with electric transmission. Rotoiti was subsequently re-engined to diesel.

Cruise ships

Banana boats

General cargo ships

Bulk carriers

Oil tankers


See also

References

Notes

  1. ^ Friedman, 1985, pp 125, 135, 189, 216
  2. ^ Friedman, 1984, pp 86-87, 103
  3. ^ Friedman, 1994, pp 136, 147–149

Sources

  • Friedman, Norman (1984). U.S. Cruisers: An Illustrated Design History. Annapolis, MD: United States Naval Institute. ISBN 0-87021-739-9.
  • Friedman, Norman (1985). U.S. Battleships: An Illustrated Design History. Annapolis, MD: United States Naval Institute. ISBN 0-87021-715-1.
  • Friedman, Norman (1994). U.S. Submarines Since 1945: An Illustrated Design History. Annapolis, MD: United States Naval Institute. ISBN 1-55750-260-9.

External links

  • Czarnecki, Joseph (31 January 2001). "Turboelectric drive in American Capital Ships". The Naval Technical Board. NavWeaps.
  • Draper, John L (December 1930). "The Paddle Wheel to Electric Drive". Popular Mechanics: 898–902. — detailed article with drawing and charts on turbo-electric drive for ships and the advantages

turbo, electric, transmission, turbo, electric, transmissions, driven, turbines, turbine, electric, transmission, this, article, needs, additional, citations, verification, please, help, improve, this, article, adding, citations, reliable, sources, unsourced, . For turbo electric transmissions driven by gas turbines see Turbine electric transmission This article needs additional citations for verification Please help improve this article by adding citations to reliable sources Unsourced material may be challenged and removed Find sources Turbo electric transmission news newspapers books scholar JSTOR November 2008 Learn how and when to remove this template message A turbo electric transmission uses electric generators to convert the mechanical energy of a turbine steam or gas into electric energy which then powers electric motors and converts back into mechanical energy that power the driveshafts The battleship USS New Mexico launched in 1917 was the world s first turbo electric battleship Turbo electric drives are used in some rail locomotives gas turbines e g with the first TGV and ships steam and more recently gas turbines An advantage of turbo electric transmission is that it allows the adaptation of high speed turbines to slow turning propellers or wheels without a heavy and complex gearbox It has the advantage of being able to provide electricity for the ship or train s other electrical systems such as lighting computers radar and communications equipment Other advantages for ships include greater watertight subdivision 1 2 quieter operations and safety via instant thrust reversal by changing engine direct current polarity for submarines 3 Contents 1 Ships with turbo electric drive 1 1 Warships 1 1 1 Battleships 1 1 2 Aircraft carriers 1 1 3 Destroyer escorts 1 1 4 Destroyers 1 1 5 Troop ships 1 1 6 Submarines 1 1 7 Auxiliary ships 1 1 8 Coast Guard cutters 1 2 Merchant ships 1 2 1 Ocean liners 1 2 2 Coastal liners 1 2 3 Ferries 1 2 4 Cruise ships 1 2 5 Banana boats 1 2 6 General cargo ships 1 2 7 Bulk carriers 1 2 8 Oil tankers 2 See also 3 References 3 1 Notes 3 2 Sources 4 External linksShips with turbo electric drive Edit USS Langley the US Navy s first aircraft carrier was converted in 1920 22 from the collier USS Jupiter Jupiter was the US Navy s first turbo electric ship commissioned in 1913 USS Tullibee launched in 1960 was the US Navy s first turbo electric submarine Warships Edit Battleships Edit Colorado class USS New Mexico Tennessee classAircraft carriers Edit USS Langley Lexington class Queen Elizabeth class gas turbine Destroyer escorts Edit Buckley class Rudderow classDestroyers Edit Type 45 destroyers gas turbine Troop ships Edit Admiral W S Benson class transports Gilliam class attack transportsSubmarines Edit USS Glenard P Lipscomb USS Tullibee Triomphant class submarines Columbia class submarines Dreadnought class submarinesAuxiliary ships Edit Suamico class oilersCoast Guard cutters Edit Tampa class cutters USCGC Haida USCGC Modoc USCGC Mojave and USCGC TampaMerchant ships Edit Uruguay She was launched in 1927 as California the world s first turbo electric ocean liner Normandie launched in 1932 Canberra launched in 1960 was the first ship with alternating current AC turbo electric transmission RMS Queen Mary 2 launched in 2003 has gas turbines and is the world s largest turbo electric ship Arauca shown here and her sister ship Antilla were launched in 1939 Their propulsion systems suffered significant technical failures on their maiden voyages Ocean liners Edit California later Uruguay Pennsylvania later Argentina and Virginia later Brazil Canberra the most powerful steam turbo electric units in a passenger ship 42 500 shp 31 700 kW per shaft 2 shafts Monarch of Bermuda later New Australia and Arkadia and Queen of Bermuda RMS Mooltan as re engined in 1929 Morro Castle and Oriente later USAT Thomas H Barry Normandie most powerful steam turbo electric passenger ship ever 40 000 shp 30 000 kW per shaft 50 000 shp at max power 4 shafts Potsdam and Scharnhorst later Japanese aircraft carrier Shinyo President Cleveland and President Wilson originally planned as Admiral W S Benson class transports President Hoover and President Coolidge RMS Queen Mary 2 powered by General Electric gas turbines as well as her diesel generators to generate the current for her four Rolls Royce electric podded azimuth thrusters Santa Clara later USS Susan B Anthony Strath class ocean liners RMS Strathnaver and RMS Strathaird Vaterland 1940 RMS Viceroy of IndiaCoastal liners Edit Cuba formerly Powhatan converted to turbo electric transmission in 1920 Princess Marguerite II and Princess PatriciaFerries Edit TEV Wahine TEV Rangatira possibly the World s last steam powered turbo electric merchant ship scrapped 2005 Union Rotorua and Union Rotoiti were both built as gas turbine ships with electric transmission Rotoiti was subsequently re engined to diesel Cruise ships Edit Millennium class cruise ships Celebrity Constellation Celebrity Infinity Celebrity Millennium and Celebrity SummitBanana boats Edit Darien as re engined in about 1930 Cargo and passenger liners later Mizar class stores ships Antigua USS Ariel USS Merak USS Mizar USS Talamanca and USS Tarazed Musa and Platano San Benito later USS TaurusGeneral cargo ships Edit Arauca later USS Saturn Antilla and OrizabaBulk carriers Edit Frank C Ball was a lake freighter that was converted to turbo electric propulsion in 1930 Carl D BradleyOil tankers Edit T2 tankersSee also EditGas turbine electric locomotive Steam turbine electric locomotiveReferences EditNotes Edit Friedman 1985 pp 125 135 189 216 Friedman 1984 pp 86 87 103 Friedman 1994 pp 136 147 149 Sources Edit Friedman Norman 1984 U S Cruisers An Illustrated Design History Annapolis MD United States Naval Institute ISBN 0 87021 739 9 Friedman Norman 1985 U S Battleships An Illustrated Design History Annapolis MD United States Naval Institute ISBN 0 87021 715 1 Friedman Norman 1994 U S Submarines Since 1945 An Illustrated Design History Annapolis MD United States Naval Institute ISBN 1 55750 260 9 External links EditCzarnecki Joseph 31 January 2001 Turboelectric drive in American Capital Ships The Naval Technical Board NavWeaps Draper John L December 1930 The Paddle Wheel to Electric Drive Popular Mechanics 898 902 detailed article with drawing and charts on turbo electric drive for ships and the advantages Retrieved from https en wikipedia org w index php title Turbo electric transmission amp oldid 1122424645, wikipedia, wiki, book, books, library,

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