Diesel electric propulsion pdf merge

It leverages the high torque of the uqm powerphase system for displacement speed, improved maneuverability, while reducing noise, emissions and vibration. Today, the primary source of propeller power is the diesel. Future trends of electrical propulsion and implications to ship design h. Combined diesel electric and gas codlag is a modification of the combined diesel and gas propulsion system for ships. New study on dual fuel diesel electric propulsion for lng. Electric motor is provided by the diesel generators, as shown in figure 3. The option of drawing the vessels ac house power from the propulsion system when under way, eliminating the need to run the vessels genset, can improve fuel efficiency.

It combines some great mechanical technology, including a huge, 12cylinder, twostroke diesel engine, with some heavy duty electric. These vehicles dont actually have electric drive, thus do not merge two propulsion sources and therefore they arent really a hybrid by the stricter definition. Using an electric propulsion system, where the energy transmission is electrical and the propulsion and thruster are variable speed electrically driven, fuel consumption can. Rms qm queen mary was a steamer cruise of 29 pax, built in 1936 and retired in 1967.

Pdf new hybrid diesel electric propulsion system for. In search of new green ship technologies, use of renewable energy, and design of a more energy efficient propulsion system for ships, this study investigated the possibility of combining both diesel and hydro generators in an integrated full electric propulsion ifep system for a very large crude carrier vlcc tanker ship. A dieselelectric transmission, or diesel electric powertrain, is used by a number of vehicle and ship types for providing locomotion. Electric propulsion systems are designed according to the power station principle. This is a known problem when combining different components and can. Pdf a diagnostic of dieselelectric propulsion for ships. Microgrids in the terrestrial grid often combine fossilfuel power sources with renewable. In turn, the spacecraft can be smaller and lighter, and launch costs lower. Design and control of hybrid power and propulsion systems for. Upon the addition of its fullyelectric and unique fourmode hybrid powertrains, edi will broaden cummins electrification expertise and products. When running in gas mode, the engine works according to the otto process where the lean airfuel mixture is fed to cylinders during the suction stroke.

Propulsion systems ge provides advanced gas turbine cycles for ship propulsion. Dual fuel diesel electric propulsion systems lng carriers dualfuel engine is the diesel engine that can run on both gaseous and liquid fuels. Folks, main propulsion diesels, navpers 16161, is one of a series of submarine training manuals that was completed just after ww ii. Pdf this article presents a mathematical model of a complete dieselelectric propulsion system, including components as diesel generators. Unlike the mechanical power which is delivered directly to a propeller or through a gearbox, electric power produced by fourstroke gensets needs to be managed to allow for safe and efficient distribution to all the consuming systems. Hybrid marine electric propulsion system abb group. Future trends of electrical propulsion and implications to. Hundreds of diesel electric packages in operation globally regular integration meetings begin at vessel concept and continue through commissioning customized packages for constant and variable speed propulsion. Diesel electric drive takes less space than the equivalent directdrive twostroke engine allowing the aft section to be slimmer and giving better flow over the propeller. Marine power and propulsion mechanical engineering mit. This superiority has been a major reason for the steadily growing demand for diesel electric. Electric propulsion is an emerging area where various competence areas meet. Today, it is the subject of more discussions between owners, captains, designers and builders as a cleaner, more efficient source of onboard power and propulsion. Handymax 30,000 55,000 dwt chemical tankers and, in particular, product tankers dominate this class of tankers with an overall length of about 180 m.

Edis hybrid system is the most versatile on the market today, able to switch, in real time, between fully electric, series and parallel modes. Electric propulsion systems are designed according to the power station. Research vessels, ferries, tankers, and special purpose vessels have also taken advantage of increased flexibility and fuel efficiency with electric propulsion. Over the last 10 years the electrical propulsion fleet grew three times faster than the world fleet. However, with developments in electric propulsion technology. Ion propulsion is 10 times more fuel efficient than onboard chemical propulsion systems. In general the advantages of dieselelectric propulsion can be summarized as follows. Maritime electrical installations and diesel electric propulsion trpa. Pdf diesel electric drives diesel electric propulsion. Electric propulsion systems are designed according to. May 01, 2009 electric propulsion is a niche market, said jukka kuuskoski, vice president for abb marine in finland. Dual fuel diesel electric propulsion systems lng carriers.

As an example of changing times in marine propulsion, consider the two cruisers. C motors and gives you a clear picture on the layout of the diesel electric marine propulsion systems. Spacecraft powered by typical electric propulsion systems may eject propellant at up to 20 times the speed of conventional chemical systems, delivering a much higher specific impulse, or the amount of thrust obtained for the weight of fuel burned. The beauty of diesel electric propulsion is the diesel engines are turned on only as they are needed, and if an engine is lost, the remaining diesel. Dieselelectric propulsion systems are used on ships with special requirements. Pdf dieselelectric drives dieselelectric propulsion. Naval dc solar electric propulsion systems for the. Reference herein to any specific commercial product, process, or service. Since then, the shipping industry has started to introduce electric propulsion. The commercial use of ion thrusters in the united states started in 1997 with the launch of a hughes xenon ion propulsion system xips 17, and the first nasa deepspace mission using the nasa.

Energy saving technology of the dieselelectric propulsion. These systems are based on the principle of speed controlled ac motors driving the propeller directly or by gearing. This superiority has been a major reason for the steadily growing demand for diesel electric main drives in marine engineering applications. The marine propulsion order survey includes drivers beginning at 500 kw 0. Naval dc is your specialist with more than 12 years of experience for electric propulsion systems. Hybrid power systems can combine different power sources with. That said, dieselelectric dominates some vessel types. Electric propulsion the conversion in order to provide a concise discussion, we have simpli. Dieselelectric propulsion remains niche market despite. A medium speed diesel engine has a low fuel consumption at the optimum operation point. The electrical propulsion arrangement for a ship is often described as a dieselelectric or turboelectric system. Looking at the current world order backlog, abb puts the market share at 100 percent for cruise ships, icebreakers and drilling vessels, and 45 percent for lng carriers.

Wartsila is investigating how to merge dualfuel engines with hybrid propulsion technology to lower operating expenditure and emissions from tugs. Maritime electrical installations and diesel electric. The transverse flux motor, currently being developed by rollsroyce, is a permanent magnet motor. Opting for a diesel electric propulsion system does mean that electric. Propulsion architecture is based on the power required, the duty cycle, environmental concerns and many other factors. The concept features a dieselmechanical part driving a conventional propeller and a dieselelectric power plant powering one or more electric pods. The selection of the dieselelectric propulsion plant mainly depends on the type of vessel. But, there is a lower additional cost for installing hybrid power units. Diesel and turbine electric propulsion of ships oddbjorn gjerde muththruster, all powered by asynchronous motors and with controllable pitch propellers. Theres a dilemma that prevents diesel electric propulsion from being widely adopted in boats and yachts, and it involves one of the.

Overall, the fuel economy of the diesel electric drive will be close to or as good as what can be achieved using a directdrive system. Motors for ship propulsion massachusetts institute of. The main objective of this paper is to present an analysis on diesel electric. As all electric and hybrid electric propulsion technology matures and becomes better accepted by the marine community, business opportunities will be created for nova scotia companies with expertise in research, design and engineering, manufacturing, installation, testing, and service and maintenance of components or complete systems. Early diesel electric submarines had to switch between electrical and diesel propulsion. A diagnostic of dieselelectric propulsion for ships. Manager, ecology engineering group, engineering division, ihi marine united inc. This greater efficiency means less propellant is needed for a mission. The concept features a dieselmechanical part driving a conventional propeller and a dieselelectric power plant powering one or more electric. Abc gensets are widely used around the world as main power gensets in tankers. These systems are based on the principle of speed controlled ac or dc motors driving the propeller directly or by gearing. The hybrid diesel locomotive is an incredible display of power and ingenuity. It is characterized only by the type of prime mover with no reference to the type of electrical propulsion motor.

Electric propulsion with gas turbine or diesel engine driven power. Almost all ships of this type 95% have a two stroke diesel engine installed for main propulsion. Cummins announces acquisition of electric and hybrid. Diesel electric power has powered ships and submarines for nearly a century. Combined dieselelectric and dieselmechanical coded propulsion. The main engine efficiency can be improved with a new hybrid diesel electric propulsion system notti et al. Azipod propulsion enhances the merits of electric propulsion in a. Edis hybrid system is the most versatile on the market today, able to switch, in real time, between fully electric. Dieselelectric marine propulsion compared to direct diesel drives, diesel electric propulsion systems are technically and operationally superior in virtually all applications. Upon the addition of its fully electric and unique fourmode hybrid powertrains, edi will broaden cummins electrification expertise and products. Dieselelectric propulsion plants guideline 20120731. In the vessel management term, it is common to include manual.

Electric propulsion systems for ships topics yoshifumi ajioka kiyoshi ohno increasing use of electric propulsion systems on ships as is the case with general automobiles that are driven on land, the main type of engine used on ships is the internal combustion engine motors such as diesel engines and gas turbines. Electric propulsion systems for ships topics yoshifumi ajioka kiyoshi ohno increasing use of electric propulsion systems on ships as is the case with general automobiles that are driven on land, the main type of engine used on ships is the internal combustion engine motors such as diesel. When the prime mover is a diesel engine, then it is called dieselelectrical propulsion. Aip can augment or replace the diesel electric propulsion system of nonnuclear vessels. Dieselelectric drive takes less space than the equivalent directdrive twostroke engine allowing the aft section to be slimmer and giving better flow over the propeller. This article covers the two main types of electrical drive systems currently in use frequency controlled a. The total installed generator power is about 7100 kva. Airindependent propulsion aip is any marine propulsion technology that allows a nonnuclear submarine to operate without access to atmospheric oxygen by surfacing or using a snorkel. Dieselelectric propulsion pushes ahead professional. Though a steam turbine, gas turbine, or diesel engine continue to play the role of the prime mover, for most ships electric propulsion becomes the more and more appropriate solution. Ship propulsion normally occurs with the help of a propeller, which is the term most widely used in english, although the word screw is sometimes seen, inter alia in combinations such as a twinscrew propulsion plant. Nov 20, 2007 with mechanical propulsion, if a ship loses one of two diesel engines, it loses fifty percent of its propulsion power. Lower fuel consumption and emissions due to the possibility to optimize the loading of diesel engines gensets.

Conversion to electric propulsion is hence a natural step. The term project requires analysis of alternatives in propulsion plant design for given physical, performance, and economic constraints. Regenerative electrichybrid drive train for ships nordic council of. Airindependent propulsion aip technology creates a new undersea threat page 3 of 6 heavily modified commercial diesel engine with a small batterypowered electric motor as a backup. In marine appli cations, nearly all the energy is produced by diesel engines. Mathematical modelling of dieselelectric propulsion. Review of allelectric and hybridelectric propulsion. Optimized design of electric propulsion system for small crafts.

A variant, called the combined diesel electric or gas codlog system, contains the same basic elements but will not allow simultaneous use of the alternative drive sources. A dieselelectric transmission system includes a diesel engine connected to an electrical generator, creating electricity that powers electric. The beauty of diesel electric propulsion is the diesel engines are turned on only as they are needed, and if an engine is lost, the remaining diesel engine generators on the system can still provide power to both shaft lines. The response of the propulsion installations and diesel electric propulsion. A diagnostic of dieselelectric propulsion for ships dialnet. A novel propulsion and machinery concept developed by wartsila corporation. Developing a new methodology for evaluating dieselelectric.

Electric propulsion with diesels used as prime movers. T he use of electric propulsion in certain vessel types is wellknown. Hybrid electric solutions for the marine industry offer a high efficiency alternative to conventional marine propulsion. A dieselelectric transmission, or dieselelectric powertrain, is used by a number of vehicle and ship types for providing locomotion a dieselelectric transmission system includes a diesel engine connected to an electrical generator, creating electricity that powers electric traction motors. The switch is now to switch the source were the power comes from, direct from engine or from. Wartsilas extensive portfolio of dieselelectric propulsion solutions allows us to select the. See the first prototype version of our 330hp drive operating near the end of the video.

Dieselelectric marine propulsion marine diesel engine. New orders are broken into diesel electric, mechanical drive and auxiliary generating set orders. Our portfolio spans from fleets of solar electric and hybrid catamarans to solar electric race and speed. The diesel electric vessel is powered by four identical medium speed diesel generator sets, each diesel engine with a rating of 1470 kw.

Integrated full electric propulsion system for tanker ships. Dieselelectric propulsion system, azipod propulsion, maneuver, steering. Looking towards future technologies, it is possible to combine diesel generators with batteries or fuel cells. Below are a few of the most popular cycles used for ship propulsion employing ge marine gas turbines. Pdf new hybrid diesel electric propulsion system for trawlers. Dec 19, 2015 1 diesel electric propulsion system by using diesel electric propulsion, we will able to operate diesel engines at. Pdf mathematical modelling of dieselelectric propulsion systems. Pdf the main objective of this paper is to present an analysis on diesel electric. Over the past ten years there have been significant improvements in the torque density of electric motors, moving from conventional motors to advanced induction motors and permanentmagnet propulsion motors see figure 8. Combined dieselelectric and dieselmechanical coded.

With mechanical propulsion, if a ship loses one of two diesel engines, it loses fifty percent of its propulsion power. The course also investigates thermodynamic analyses of rankine, brayton, diesel, and combined cycles, reduction gears and integrated electric drive. Mathematical modelling of dieselelectric propulsion systems for marine vessels jan fredrik hansen1,3, alf ka. Boca raton, on investigating the behaviour of the electrical system fl. The most reliable and low noise design is the direct drive. Ion and hall thrusters march 2008 the research described in this publication was carried out at the jet propulsion laboratory, california institute of technology, under a contract with the national aeronautics and space administration.

In case of using an alternative energy source, the. Sep 19, 2017 photos courtesy of glacier bayglacier bays electric motor, the keystone of its full propulsion system, is on the cutting edge of diesel electric pleasure boating. Recent renewed interest in diesel electric marine propulsion creates a need for more understanding of how the systems work and how they are laid out. Electrical installations are present in any ship, from powering of communication and navigation equipment, alarm and monitoring system, running of motors for pumps, fans or winches, to high power installation for electric propulsion. This document, and more, is available for download from. Classifies mechanical, electrical and hybrid propulsion for ships.

Deep s pace 1 carries 178 pounds 81 kilograms of xenon propellant, capable of fueling engine operation. Sirue sam electronics is tarrying on the technology amd industry traditiors of its predecessor aeg marine bramch aeg and has ed than converter fed propulsion more than 85 ships in all configurations and pcwers asynchronous and x propulsion motors with orvia gear the propeller as podded conventionally with propulsion. Pestana head of ship design, abb marine, billingstad, norway this abstract. The series describes the peak of ww ii us submarine technology. Over the past ten years there have been significant improvements in the torque density of electric motors, moving from conventional motors to advanced induction motors and permanentmagnet propulsion. The acquisition cost of machinery will be covered by a bank loan. Diesel electric propulsion systems are used on ships with special operational requirements. Battery operated vehicles and fuel cells are also discussed. History and recent advancements of electric propulsion and. Diesel electric marine propulsion compared to direct diesel drives, diesel electric propulsion systems are technically and operationally superior in virtually all applications. Paper open access related content type selection and. The commercial use of ion thrusters in the united states started in 1997 with the launch of a hughes xenon ion propulsion system xips 17, and the first nasa deepspace mission using the nasa solar electric propulsion technology applications readiness nstar ion thruster was launched in 1998 on deep space 1 18.