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Topic: Diesel electric


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 Locomotive - Wikipedia, the free encyclopedia
While the cost of electrifying track is rather high, electric trains and locomotives are significantly cheaper to run than diesel ones, and are capable of superior acceleration as well as regenerative braking, making them ideal for passenger service in densely populated areas.
The most common form of transmission is electric; a locomotive using electric transmission is known as a diesel-electric locomotive.
Diesel trains or locomotives that use this are called diesel-mechanical and began to appear (although limited in power) even before the first world war which saw a number of simplex diesel systems built for the war, a small number of which survive and are still operational today.
en.wikipedia.org /wiki/Diesel_locomotive   (3082 words)

  
 Diesel Electric Hybrid
The down side of even the most efficient totally electrical propulsion systems is the life cycle operating cost of the battery bank, the weight of the battery bank, the low operating range of a battery powered propulsion system, and the cost of the speed control system required to handle large power flows.
The down side of the inboard diesel is that the motor, transmission, and propeller shaft must be mounted aft and on the centerline.
In this model, the diesel could be located anywhere that is convenient on the boat and the power transmitted to the needed location with hydraulic fluid.
www.geocities.com /jvandrey/flicka_diesel_electric.html   (2858 words)

  
 Diesel Electric Generators
Diesel electric generators [DEGs] are often used where electricity is desired or needed, but the demand is not large enough for electric utilities to run power lines to the load.
In a diesel generator set, the output shaft of the engine is connected to a generator where the electricity is produced.
Availability of a diesel electric generator can be 95% (meaning that it can be operate 95% of the time), when properly maintained and operated.
www.uaf.edu /energyin/webpage/pages/heat_engines/DEG.htm   (671 words)

  
 Our System
Diesel motors have very 'flat' torque curves and can also apply high levels of torque at low RPM, but the restriction of idle speed limits that amount of prop cup that can be used to take advantage of this.
Electric motors are then bolted onto the gearbox, wiring and cooling attached and the process in complete.
Electric motors are rated entirely differently than their internal combustion counterparts.
www.feys.org /System/our_system.htm   (2304 words)

  
 Diesel-electric locomotive engines & how they work
Diesels by GM, Fairbanks Morse, American Locomotive Company, Lima, and General Electric were all over the continent.
As you can probably guess by now, the diesel-electric uses a diesel engine to drive an electric generator, which then supplies the current to traction motors, which are geared directly to the locomotive's wheels.
A straight electric locomotive, on the other hand, uses electricity provided by an overhead wire or "3rd rail" next to the tracks, to power electric motors (known as "traction motors") that are geared directly to its wheels.
tn.essortment.com /locomotiveengin_rwoc.htm   (1155 words)

  
 Locomotive - Wikipedia, the free encyclopedia
Diesel trains or locomotives that use this are called diesel-mechanical and began to appear (although limited in power) even before the first world war which saw a number of simplex diesel systems built for the war, a small number of which survive and are still operational today.
Diesel locomotives vary in the form of transmission used to convey the power from a diesel engine (or engines) to the wheels.
Although the locomotive hauled a train of 10 tons of iron and 70 passengers in five wagons over nine miles it was too heavy for the cast iron rails used at the time.
en.wikipedia.org /wiki/Diesel_locomotive   (2916 words)

  
 NRDC: Addressing the Technical and Public Health Issues of Diesel-Electric Hybrid Buses
In this document, we summarize the health risks of diesel exhaust, raise a number of critical concerns about the current wave of diesel-electric hybrid bus demonstration projects, and offer a series of recommendations for transit operators and regulators who are trying to gauge the environmental performance of these new buses.
The smaller diesel engines to be employed in hybrids should be durability tested, since they may not normally be used in transit or other heavy-duty applications.
Given the long lifetime of a typical transit bus, additional testing is needed to indicate how diesel-electric hybrid bus emissions change as miles accrue.
www.nrdc.org /air/transportation/pd-ebus.asp   (1669 words)

  
 Wired News: Diesel Hybrids on the Fast Track
Freese said diesel and hybrid technologies have synergies because hybrid systems reduce fuel consumption by relying on the electric motor while idling and during acceleration of stop-and-go traffic.
In addition to increasing fuel economy, coupling an electric motor with a diesel engine can help automakers meet increasingly stringent emissions standards, according to Dan Benjamin, an analyst at ABI Research.
Diesel hybrid technology has been used in large vehicles that transport heavy loads, including buses and locomotives.
www.wired.com /news/planet/0,2782,66949,00.html   (907 words)

  
 WorldChanging: Another World Is Here: Diesel Hybrid Electric Cars Now!
Diesel hybrids turned out to be much better than gasoline/gasoline-hybrid cars, and highly competitive with the best hydrogen fuel cell systems (even assuming optimistic fuel cell vehicle development).
The VW Lupo (a diesel) already has some elements of hybrid technology, including a continuous automatic transmission and electric motor for lower RPMs.
The combination of modern clean diesel engines, Prius-style serial hybrid-electric systems, and biodiesel/vegetable oil fuels could provide amazing mileage, cleaner air, and vastly reduced petroleum dependency.
www.worldchanging.com /archives/000791.html   (2581 words)

  
 Diesel-Electric Engine Operation - NE Rails
Traditional electric engines work in one of two fashions: either the motors are directly supplied with full voltage or the current is transformed to lower voltage by a transformer in the locomotive, then it may be directly transmitted to the motors or rectified if DC motors are used.
Electrical transmission from the power source is best done at high voltage since this reduces losses due to resistance and can be accomplished with lighter cables (since the current is reduced).
Electric locomotives are "clean": they don't pollute the local environment, although the power plants may depending on how they generate the electricity.
www.northeast.railfan.net /pro_faq2.html   (6290 words)

  
 GM - GMability Advanced Technology: Opel Astra Diesel Hybrid Concept Demonstrates Easy Scalability of Innovative Two-Mode Full Hybrid System
The Astra Diesel Hybrid is propelled by a powerful 92-kw (125-horsepower) 1.7-liter CDTI engine with a maintenance-free particulate filter and by two electric motors, rated at 30 kw and 40 kw, respectively.
The electric motors boost the already strong performance of the turbo-diesel engine, delivering a feeling of performance that would otherwise be achieved only with a larger-displacement engine.
The electric motors also are used for deceleration, where kinetic energy is recuperated and stored in the battery.
www.gm.com /company/gmability/adv_tech/100_news/astra_011005.html   (688 words)

  
 Search Results for diesel-electric -¬†Encyclop√¶dia Britannica
In the field of electric power generation, gas turbines must compete with steam turbines in large central power stations and with diesel engines in smaller plants.
Although the diesel engine has been vastly improved in power and performance, the basic principles remain the same: drawing air into the cylinder, compressing it so that its temperature is raised,...
A diesel engine is started by driving it from some external power source until conditions have been established under which the engine can run by its own power.
www.britannica.com /search?query=diesel-electric&submit=Find&source=MWTEXT   (305 words)

  
 Howstuffworks "How Diesel Locomotives Work"
The diesel engine makes 3,200 horsepower, and the generator can turn this into almost 4,700 amps of electrical current.
It combines some great mechanical technology, including a huge, 12-cylinder, two-stroke diesel engine, with some heavy duty electric motors and generators, throwing in a little bit of computer technology for good measure.
This combination of diesel engine and electric generators and motors makes the locomotive a hybrid vehicle.
travel.howstuffworks.com /diesel-locomotive.htm   (228 words)

  
 Naval Technology - SSK Kilo Class (Type 636) - Attack Submarine
The power of the diesel generators has been increased and the main propulsion shaft speed has been reduced to provide a substantial reduction in the acoustic signature of the submarine.
The Type 636 submarine is considered to be to be one of the quietest diesel submarines in the world.
The submarine's propulsion system consists of two diesel generators, a main propulsion motor, a fuel-economic motor and a single shaft driving a seven-blade fixed-pitch propeller.
www.naval-technology.com /projects/kilo/index.html   (746 words)

  
 SAN FRANCISCO / State clears way for Muni to buy hybrid diesel-electric buses / Environmentalists nudge agency to remove diesels fast
The bus uses an electric engine and an electric drive system, paired with a diesel engine smaller than the one in a conventional bus.
Diesel exhaust is a major source of particulate pollution that can trigger respiratory and heart problems.
The air board says diesel soot is responsible for 70 percent of the state's cancer risk from airborne poisons.
sfgate.com /cgi-bin/article.cgi?f=/c/a/2004/06/25/BAG047BIFG16.DTL   (620 words)

  
 UP-Historical UP Locomotives: Diesel-Electric Locomotives
The diesel engine drives an alternator, which produces electricity to run electric motors mounted on the locomotive's axles.
Although commonly called "diesels," the locomotives are actually electrically driven.
Although diesel locomotives first came to American railroads in the 1920s, their use was confined to switch engines, and later to passenger train locomotives.
www.uprr.com /aboutup/history/loco/locohs03.shtml   (773 words)

  
 EV World: The World of Electric, Plug-in Hybrid, Fuel Cell and Alternative Fuel Vehicles
The electric drive also operates momentarily as the manual transmissions electrically shifts gears, in effect creating the equivalency of an automatic transmission, but without the efficiency losses.
To improve the safety of the hybrid-propulsion unit, the electric drive automatically disconnects in the event of a crash, thus preventing short circuits.
This is accomplished through the electric motor, which acts as a generator during braking.
www.evworld.com /databases/storybuilder.cfm?storyid=235   (523 words)

  
 TriMet: Hybrid Diesel-Electric Buses
Its diesel engine powers an electrical generator which charges a battery pack on the roof.
Electric hybrid buses are up to 50 percent more fuel efficient than regular buses.
A regular diesel bus emits the most pollution when it accelerates from a stop or goes up hill.
www.trimet.org /environment/hybridbus.htm   (421 words)

  
 The HUMVEE Goes Hybrid
The batteries augment the diesel generator for "burst" energy requirements, and are recharged during low demand operations.
The Shadow's diesel generator is a Detroit turbocharged, intercooled 2.5-liter DI-4V inline 4 engine that drives the Shadow with 138 Hp -- as much as your typical Honda Accord or Mazda Miata.
In the event of battery failure, the Shadow can run on the diesel engine alone, in which case it has a range of 758km at 50km per hour.
www.military.com /soldiertech/0,14632,Soldiertech_Shadow,,00.html?ESRC=soldiertech.nl   (963 words)

  
 Green Car Congress: California Utilities Incent Farmers to Ditch Diesel for Electric Pumps
Pacific Gas and Electric and Southern California Edison are rolling out incentive programs to persuade agricultural customers in California to switch from internal combustion engines (mostly fueled by diesel) to electric motors to power irrigation systems.
Electrically powered pumps are quite a bit more efficient than any internal combustion engines, line losses included.
In addition, CARB estimates that diesel pumps represent about 31% of the reactive organic gases (ROG) from stationary fuel combustion sources in the central California valleys.
www.greencarcongress.com /2005/08/california_util.html   (535 words)

  
 Kennecott Utah Copper, Electric and Diesel-Electric Locomotives
General Electric records show that these seven locomotives were built for Utah Copper Co. even though that company had became the Utah Copper Division of Kennecott Copper Corp. in January 1941.
During late May 1978 the Copperton Low Grade line was shut down for ten days; the 400-class electrics were replaced by leased UP GP30s 807 and 809 and new high-cab GP39-2s 779 and 780; the shut down came from lightening damage to the substation at Cypress, halfway between Bingham and Magna.
GE numbers 10640-10656 are accounted for; most are small electric mine locomotives built for use inside coal mines, all built between February and October 1928.
www.utahrails.net /bingham/kcc-diesel-elec-loco.htm   (4513 words)

  
 TCDD diesel electric locomotives
Diesel engine Pielstick type 16 PA4 V185 VG, Electric traction motors: AST108 30,5 DC In the late 1960s and after much hesitancy, TCDD decided for a full dieselisation program of their network.
They have a diesel engine type GM 16 645 E (16 cylinders, direct injection), an AC alternator type AR10/D18 and a DC electric traction motors: D77-DC.
The electric transmission is AC/DC type with a silicon rectifier.
www.trainsofturkey.com /diesel_eng.htm   (1317 words)

  
 Information on Diesel-Electric & Electric Locomotives, Mohawk & Hudson Chapter, National Railway Historical Society
The electrical power lines that criss-cross our towns and cities are called electric "transmission" lines; the link from a diesel motor to the electric motors on a locomotive's axles is called the transmission.
The traditional electric motor on a diesel-electric or electric locomotive is a DC motor.
In electric locomotive (or MU) applications, the use of DC (as on the Metro North [ex New York Central] Hudson and Harlem lines and on the LIRR) requires closely spaced substations to convert AC to DC, stations more closely spaced than might be required for a similar AC operation.
www.crisny.org /not-for-profit/railroad/en_info.htm   (4780 words)

  
 Motor Age: Ford introduces diesel/electric hybrid concept
So it will be possible for tomorrow's passenger car diesels to meet the strictest emissions standards when combined with advanced hybrid features, new fuels and after-treatment technologies.
The Meta One is an advanced research vehicle concept which displays the evolution of automotive design, research and engineering with emerging safety features, personal electronics and the world's first PZEV capable diesel hybrid.
This new diesel fuel will be produced by BP, and will be a plant-sourced mixture of biological feedstocks which absorb C[O.sub.2] during the their growth.
www.findarticles.com /p/articles/mi_m3102/is_7_124/ai_n14925668   (901 words)

  
 Russia launches production of diesel-electric submarines
Modern diesel submarines, for example those with AIP technology to negate the achilles heel of Diesel subs (AIP allows diesel subs to remain submerged for several WEEKS), as well as hull coatings to reduce echos plus advanced silent propulsion systems, are an extremely potent threat.
The diesels (and these are big diesels) had used up all the air inside the hull then shut off.
I don't know anything about whether they are very quiet-running on diesels, but diesels running on batteries are typically the quietest boats in the ocean.
www.freerepublic.com /focus/f-news/1451080/posts   (2944 words)

  
 AGEIR Box Cab Diesel Locomotive
During 1910 General Electric engineer Dr. Hermann Lemp had a meeting with Dr. Rudolph Diesel which resulted in a GE decision to pursue the Diesel engine for locomotive use...
As a Diesel power plant was being developed General Electric built the first commercially successful internal combustion locomotive in America...
But these General Electric efforts brought other manufacturers into the pursuit of internal combustion motive power and GE exited the engine building phase of their operations in a timely fashion...
my.execpc.com /~jcampbel/ageir.html   (1382 words)

  
 Diesel Generators with electric power generator, industrial generators & electric generators
Bowers Generator Systems can provide for all your diesel generators and backup electric generator needs from 2 Mega Watt units for industrial generator customers to residential models.
Electric equipment is designed to use power with a fixed frequency: 60 Hertz (Hz) in the United States and Canada, 50 Hertz in Europe and Australia.
Electric Generator Mart sales engineering staff is available to help you with all steps of the generator selection and sizing process.
www.bowerspower.com   (1623 words)

  
 Diesel Engines Electric Power Generators Diesel Generator Marine Sales
The generator is powered by a 4-cylinder, 31-horsepower Isuzu C240 diesel engine and the unit controls voltage regulation to +/-1 percent no load to full load.
U.S. Diesel Engines does not guarantee that all of our products will be compatible for every customers situation.
NextGen RV Generators 2000 Watt to 5000 Watt Diesel Gensets
www.usdieselengines.com   (704 words)

  
 Brown's Boating Mall - Lugger Diesel Engines and Alaska Diesel Electric Generators.
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Alaska Diesel is famous world-wide for quality engines and generators.
They have been used for generations by Alaskan mariners who swear by their dependablity.
www.brownmarine.com /alaska_diesel.htm   (145 words)

  
 Classic BR Diesel and Electric Traction
A selection of photos of diesels and electrics taken in the late 60's to the early 80's.
ELR Bury Diesel Group - UK railway preservation group for dmu's, diesel electric, diesel hydraulic and shunting locomotives at the ELR, Bury, Gtr.
A directory of all preserved mainline ex-BR diesel and electric locomotives, together with photographs and details about the locations.
v.webring.com /hub?ring=classicbrdiesela   (744 words)

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