subject: Electric Push System Success "low-carbon" Railway Ferry - Shipbuilding - Machinery [print this page] Ship Research and Design Institute Shanghai R & D and design of tobacco self-Dalian Railway Ferry installed podded electric propulsion system. As the world's first three uses of the sea train ferry system now, they have actually ship operators a year and a half to three years. Because of its good handling, comfort, economy and environmental performance, the owner of Iron Bohai Railway Ferry Co., Ltd. has made plans to further construction of six electric propulsion system using the same type of vessel. The future, there will be nine performance advanced train / car ro operations in the Bohai Bay.
Railway ferry from Yantai in Yantai, Shandong, Dalian City, Liaoning Province, between the sea voyage the vessel about 86 nautical miles (nearly 160 km), the route is the longest cross-sea railway ferry route. Yantai railway ferry endurance of 2,000 nautical miles, speed is 18 knots, the ship than a train ferry, but also car and passenger ferry, a passenger capacity of 480. In 2000, the Shanghai Ship Research and Design Institute in determining the ship's design, by a many, a lot of testing, inspection and verification, the decision to equip them with advanced electric propulsion system and received the support of the owner.
Today, the advanced performance of the three vessels have been fully appreciated by the owner. China Railway Bohai Railway Ferry general manager, said late Bao Zhang, Yantai railway ferry use of electric propulsion system, due to the propulsion motor axis in the horizontal plane for 3600 can freely turn, promote the propeller also offering power steering, so its good maneuverability. Coordination with bow thruster, the ferry can be in situ in a smaller turning radius, you can traverse, can easily move forward, backward, left and right translation and rotation, so as safe and reliable access to ports, through from the terminal, and can safe docking with the train trestle, with reversing big power, quickly reversed, mobility, smooth start, run and reliable.
The same time, pushed by the electric system, Tobacco Dalian Railway Ferry's original motive and there is no mechanical connection between the propeller, which not only makes the cabin layout flexibility and reduce the volume for the cargo ship stability calculation arrangement and provide a convenient, the ship can greatly reduce vibration and noise, comfort further. In addition, the propulsion motor on the adaptive changes in the external load, in case of emergency can quickly reduce the speed, protection of the propeller.
Owner of the railway ferry Yantai economic performance is also greatly appreciated. Indication of the use the real ship, electric propulsion system can even adjust the advance a wide range of motor speed, significantly reduce fuel consumption, reduce emissions. According to statistics, a large rail ferry and to smoke Diesel engine Driven system similar to the type of boat is just as shipping one day, in the same range of cases, the former than the latter nearly 4 tons of fuel savings, emissions are also correspondingly decline.
Chi Bao Zhang pointed out that, although compared with conventional propulsion systems, ship electric propulsion system, if used, owners of one-time investment to increase by about 30%, but the use of electric propulsion system the ship's fuel and oil consumption could be 15-20% reduction in ferry operation in seven and a half after the time, increased investment and more can be recovered. Therefore, if the ferry service for 30-year period, the benefits of electric propulsion systems is considerable.
