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. Cpp propulsion package applications can be controlled by the alphatronic 3000 system customized e. Electric propulsion systems are designed according to the power station. A dieselelectric transmission system includes a diesel engine connected to an electrical generator, creating electricity that. This superiority has been a major reason for the steadily growing demand for dieselelectric main drives in marine engineering applications. The fusion of electric propulsion and pump jet principles helps drive down the fuel cost. The course also investigates thermodynamic analyses of rankine, brayton, diesel, and combined cycles, reduction gears and integrated electric drive. Comparison of modern cng, diesel and diesel hybrid. How superyacht diesel electric power systems work boat. While terminalbased recharging infrastructure will allow for shoreside charging and fullelectric propulsion, the hybrid electric conversion of diesel ferry vessels can be completed. As an example of changing times in marine propulsion, consider the two cruisers. Displacement is thus equal to the total weight, all told, of the relevant loaded ship, nor. Technical innovation allows diesel generators to burn gas. Aug 14, 2018 diesel electric propulsion system for ferry.
Cummins also offers a range of factoryremanufactured recon engines from 5. General manager, ecology engineering group, engineering division. C motors and gives you a clear picture on the layout of the diesel electric marine propulsion systems. Electric propulsion a new era for bulk carriers case story vacon nxc in the past bulk carriers have utilized dieselmechanical propulsion.
Equipped with variable speed drives from danfoss, this system is achieving fuel savings of up to 38% with a commensurate reduction in emissions. Dieselelectric propulsion systems are used on ships with special requirements. The transverse flux motor, currently being developed by rollsroyce, is a permanent magnet motor. Ge power conversion inovelis podded propulsion unit. 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.
The electric propulsion system on mukaishima docks bulk carrier was integrated by the 712 research institute in wuhan, china. Overall, the fuel economy of the diesel electric drive will be close to or as good. A dieselelectric transmission, or dieselelectric powertrain, is used by a number of vehicle and ship types for providing locomotion. 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. Over the last 10 years the electrical propulsion fleet grew three times faster than the world fleet. Turbine hybrid includes one 60kw capstone turbine or 230kw capstone turbines in a. The swedish navys gotland class submarines use two stirling cycle engines as an adjunct to their main dieselelectric engineering plants to provide underwater endurance up to several weeks. The propulsion concept suggested for xstream is known as a crppod a contrarotating propeller combined with a pod. 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. Theres a dilemma that prevents dieselelectric propulsion from being widely adopted. Pestana head of ship design, abb marine, billingstad, norway this abstract.
Dieselelectric propulsion pushes ahead professional. Hybrid propulsion in feadships xstream and fstream concept. In general the advantages of dieselelectric propulsion can be summarized as follows. Diesel hybrid includes a complete diesel hybrid electric bus system.
Diesel electric propulsion systems are used on ships with special operational requirements. The main objective of this paper is to present an analysis on diesel electric. It is characterized only by the type of prime mover with no reference to the type of electrical propulsion motor. Key specifications of dieselelectric propulsion system. 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. 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.
The range of options available to ship owners is greater than ever before. Read online japans first dualfuel dieselelectric propulsion. Rms qm queen mary was a steamer cruise of 29 pax, built in 1936 and retired in 1967. The electrical propulsion arrangement for a ship is often described as a dieselelectric or turboelectric system. Nov 20, 2007 with mechanical propulsion, if a ship loses one of two diesel engines, it loses fifty percent of its propulsion power. Volvo penta inboard diesel md2010 maritime propulsion. This was the first air independent propulsion system to enter regular submarine service. These systems are based on the principle of speed controlled ac motors driving the propeller directly or by gearing.
Engine and block cylinder block and cylinder head man u fac tured from high grade. Future trends of electrical propulsion and implications to ship design h. Type 23 frigates duke class the type 23 frigates are designed as anti submarine warfare ships for the royal navy. Additional diesel direct propellers are engaged for higher speeds. N traction motor propulsion control system generator diesel engine battery pack battery diesel hybrid electric busesdiesel hybrid electric. This article covers the two main types of electrical drive systems currently in use frequency controlled a. How superyacht diesel electric power systems work 21 january 2015 by roger marshall former cunard flagship the qe2 underwent a major refit in 19867 to transform her from a steamship to a modern dieselelectric liner a popular choice for modern cruise liners. The concept of electric propulsion is over 100 years old with batterypowered vessels recorded in russia and germany around 1870. Natural gas hybrid includes a complete natural gas hybrid electric bus system. Diesel and electric propulsion systems hydrocarbon combustion and emissions wayside power supply onboard energy storage systems and batteries suitable for propulsion hybrid drive trains discontinuous electrification and wireless power transfer alternative fuels and energy carriers hydrogen fuel cell railway. Multiple generators provide electricity to propulsion motors. Pdf a diagnostic of dieselelectric propulsion for ships.
Retrofit diesel buses with catalytic diesel particulate filters. 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. Key specifications of dieselelectric propulsion system for ferry author. Diesel electric marine propulsion compared to direct diesel drives, diesel electric propulsion systems are technically and operationally superior in virtually all applications. Hybrid propulsion in feadships xstream and fstream. Download japans first dualfuel dieselelectric propulsion. Electric propulsion systems, electric drive systems. 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. Dieselelectric propulsion plants guideline 20120731. 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. Abc gensets are widely used around the world as main power gensets in tankers, dredgers, offshore vessels. Renewed interest in dieselelectric marine propulsion.
Ricardo was engaged to create a flexible vessel simulation model that would predict the impact that different propulsion packages architectures diesel and dieselelectric and different power management strategies. Technical assessment of advanced transit bus propulsion systems. Technical assessment of advanced transit bus propulsion. Additional dieseldirect propellers are engaged for higher speeds.
Conversion of dieselpowered tug boat to electric propulsion. With mechanical propulsion, if a ship loses one of two diesel engines, it loses fifty percent of its propulsion power. Key specifications of dieselelectric propulsion system for ferry. In 1893, one of the first electric boats electricity carried passengers on the river thames in england. It comprises a diesel electric system driving a pod which is used at low speeds up to 12 knots and manoeuvring. Photos courtesy of glacier bayglacier bays electric motor, the keystone of its full propulsion system, is on the cutting edge of dieselelectric pleasure boating. Steam turbine propulsion was the norm for nearly 40 years propulsion system capable of burning gas higher consumption fed by higher boiloff rates bor tri fuel diesel electric propulsion. The operational philosophy is integral to the design so as to meet the typical requirements of different vessel typologies. A combined diesel electric and gas turbine codlag propulsion plant operating in direct drive electric propulsion mode ensures a low noise signature. Dieselelectric propulsion systems are used on ships with special operational requirements. The beauty of dieselelectric propulsion is the diesel engines are turned on only as they are needed, and if an engine is lost, the remaining dieselengine generators on the system can still provide power to both shaft lines. All electric includes an electric propulsion system with some energy storage onboard. Lower fuel consumption and emissions due to the possibility to optimize the loading of diesel engines gensets. Energy saving technology of the dieselelectric propulsion.
Our people, technologies and strong customer base are all essential for building a successful future at delphi technologiesulwlqjp\ uvwletter to shareholders, i want to begin by stating my deep sense of. The inovelis pod provides improved fuel efficiency. Pcu alphatronic 3000 man 175d high speed package control the new man 175d based propulsion. Dieselelectric marine propulsion marine diesel engine. Reference herein to any specific commercial product, process, or service. Conversion of dieselpowered tug boat to electric propulsion by joseph fleming chief engineer, elco motor yachts. All books are in clear copy here, and all files are secure so dont worry about it. Find materials for this course in the pages linked along the left. Fuel savings with danfoss drives at the heart of electric. Ricardo was engaged to create a flexible vessel simulation model that would predict the impact that different propulsion packages architectures diesel and diesel electric and different power management strategies. For the purpose of analysis, the propulsion system has been separated. Manager, ecology engineering group, engineering division, ihi marine united inc.
This vessel ushers in a new era of electric propulsion for bulk carriers. Marine power and propulsion mechanical engineering mit. 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. Theres a dilemma that prevents diesel electric propulsion from being widely adopted in boats and yachts, and it involves one of the. Electric propulsion with diesels used as prime movers.
To ensure the optimum propulsion solution, all cummins engines are compatible with a full range of propulsion types from jets and sterndrives to inboards and diesel electric. With literally hundreds of electric thrusters now operating in orbit on communications satellites, and ion and hall thrusters both having been successfully used for primary propulsion in deepspace scientific missions, the future for electric propulsion has arrived. These systems are based on the principle of speed controlled ac or dc motors driving the propeller directly or by gearing. However despite all these options there still remain just two fundamental ways to drive a propeller. Lecture notes marine power and propulsion mechanical. A diagnostic of dieselelectric propulsion for ships. Battery operated vehicles and fuel cells are also discussed. The most reliable and low noise design is the direct drive. The term project requires analysis of alternatives in propulsion plant design for given physical, performance, and economic constraints.
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. Future trends of electrical propulsion and implications to. 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. Dieselelectric marine propulsion compared to direct diesel drives, diesel electric propulsion systems are technically and operationally superior in virtually all applications. Electric propulsion systems are designed according to. The ingenious propulsion then gets boosted by the electric drive. This superiority has been a major reason for the steadily growing demand for diesel electric main drives in marine engineering applications. Construct and renovate several depots and shops for the use of cng buses.
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