Wärtsilä Modular Waterjets Upgraded
The technology group Wärtsilä has announced that its LJX series of modular waterjets has been upgraded to deliver even greater efficiency with low levels of cavitation and underwater noise. Following this upgrading, the company’s modular waterjets will be redesignated as the Wärtsilä WXJ series.The development is based on a new axial pump design, which boosts performance with an increased thrust of as much as 3 percent, while the improved cavitation margins help reduce the environmental impact by lowering noise levels.
Contemporary UUV Propulsor Design
From the standpoint of vehicle propulsion physics, an unmanned underwater vehicle (UUV) is little different from your personal ski boat or a tanker. It shares the Vessel-Propulsor-Drive system model, which allows a Propulsor to convert Drive energy into thrust for the purpose of moving a Vessel. The basic principles of thrust equilibrium and motion are common to all three, as are the translation of rotational energy into axial thrust by the central element of the system – the…
RH Marine Optimises Energy Management System
Dutch maritime system integrator RH Marine succeeded in incorporating battery lifetime prediction for vessels into its fuel saving Energy Management System (EMS).The solutions provider of electrical and automation systems in the maritime industry pointed out that this makes expensive batteries last longer and reduces Total Cost of Ownership (TCO) of ships, while keeping the reduced fuel consumption intact.For her research paper on ‘New developments in Energy Management’, product…
Bowman Power's Engine Efficiency Solution for the Marine Sector
A consortium, led by Bowman Power Group Ltd (Bowman), has successfully created a new, marine-capable system to increase engine efficiency and reduce emissions.Just months after the International Maritime Organisation (IMO), reached an agreement to cut carbon emissions from the global shipping industry by at least half by 2050, this technology is ideally timed with the needs of the market.The project was part-funded by Innovate UK, the UK’s innovation agency, and a leading research and innovation hub.
New Thruster Solutions Developed for Arctic Shipping
A team of European marine research institutes and companies have developed creative technologies for thruster solutions that are specifically engineered for ships operating in the Arctic.With the new solutions created under the three-year ArTEco project led by Finland's VTT and Wärtsilä, thruster lifetimes can be increased, their maintenance need can be decreased and their reliability improved, particularly in extreme conditions, the project partners said.While at sea, a ship must overcome tough resistance as it displaces water masses from its path.
Pioneering Innovative Electric Propulsion
A Cornish company is planning a completely new development in electric marine vessels, with the help of a Rapid Innovation Grant from Marine-i.Whiskerstay Ltd is based in Falmouth and was set up three years ago by Dr. Rachel Nicholls-Lee, who is a naval architect with a background in yacht design and marine renewables. She is currently one of the leading experts in electric vessel design working in the South West.“There is huge interest in the marine sector for electric and hybrid propulsion systems that can deliver good performance whilst also being quiet and environmentally friendly.
Sovcomflot and ABB Open Training Center in Russia
The new Vessel Electric Propulsion Training Center at the Admiral Nevelskoy Maritime State University in Russia will help to prepare seafarers for work on vessels equipped with Azipod propulsion systemsThe center will be used to train MSUN cadets, as well as to provide advanced training to commissioned officers of the merchant fleet. It is also planned to conduct research, including scientific and experimental activities, in the area of automation of electric propulsion and vessel power supply.The establishment of the center follows the trilateral research…
BMW Car Engine to Become a Marine Outboard
BMW’s twin turbo, three-liter diesel engine may soon be taking to the water.A pilot study looking for ways to convert the popular car engine for marine use is being carried out by product development specialist Semcon in cooperation with engine manufacturer Cimco Marine.Together, the firms seek to modify and adapt BMW’s three-liter turbo diesel engine for professional marine use, producing the world’s first three-liter diesel outboard engine with an output in excess of 200 horsepower.As part of the project’s next phase…
NYK, JMU Develop Highly Efficient Propeller
Nippon Yusen Kabushiki Kaisha (NYK), MTI Co. Ltd., and Japan Marine United Corporation (JMU) have successfully developed a highly efficient propeller by analyzing the conditions surrounding vessel propellers in actual operation. This new propeller will be installed on two newly built containerships that will be delivered in 2019, and will achieve a 1.2 percent reduction in carbon dioxide (CO2) emissions by improving fuel efficiency. The propeller plays a major role in the propulsion of a ship…
WinGD teams up with Wärtsilä, CSSC Marine to boost services
To extend their global service offerings, Winterthur Gas & Diesel (WinGD), recently signed agreements with Wärtsilä Services and CSSC Marine Service Co. Ltd. (CMS) as Authorized Global Service Providers. With these new agreements, valid from January 1st, 2018, both providers can now offer support for all two-stroke engine brands from Winterthur Gas & Diesel, namely WinGD, Wärtsilä and Sulzer. The support includes delivery of spare parts, provision of service engineers, reconditioning and overhaul work on components, training, upgrade solutions and maintenance agreements.
Wärtsilä, CMS Sign on as WinGD Service Providers
Propulsion engine manufacturer Winterthur Gas & Diesel (WinGD) said it has recently signed agreements enabling Wärtsilä Services and CSSC Marine Service Co. Ltd. (CMS) to act as Authorized Global Service Providers. The agreements are valid from January 1, 2018, and allow both providers to offer support for all two-stroke engine brands from Winterthur Gas & Diesel, namely WinGD, Wärtsilä and Sulzer. The support includes delivery of spare parts, provision of service engineers, reconditioning and overhaul work on components, training, upgrade solutions and maintenance agreements.
Tech File: New Cylinder Pressure Sensor Helps Optimize Large Engines
The shipping sector is constantly striving to optimize the efficiency of large engines. This endeavor calls for new approaches and innovative products. Each percentage point of efficiency gained here has an immense impact on fuel consumption and emissions. Kistler responds to the trend toward higher cylinder pressures in engines (up to 300 bar) with its rugged, accurate and durable measurement systems. The efficiency of large engines such as those used on commercial vessels can be increased with the help of cylinder pressure sensors that precisely monitor the combustion process.
Supporting Silent Ships
Have you ever had problems talking to someone in a noisy environment such as a busy restaurant? The same happens to marine animals, which use sound to sense and interact with their environment: for communication, navigation, finding prey and even for self-defence. High ambient noise levels, which include a contribution from shipping, have an adverse impact on marine life. The world’s oceans are becoming increasingly noisy. While the size of the global commercial fleet more than doubled since the 1960s, anthropogenic noise in the oceans has actually increased eightfold.
Moving Ahead Powerfully
The layout of ship propellers is a balancing act between optimal power conversion and the avoidance of unwanted cavitation effects, which can result in damage to the propeller structure and higher noise levels. MAN Diesel & Turbo in Frederikshavn, Denmark, is using the computational fluid dynamics (CFD) simulation solution STAR-CCM+ from Siemens PLM Software to model cavitation and optimize ship propellers. Two mid-size container ships of 8,500 TEU – CSCL Europe and CSCL America – will be upgraded by retrofitting a efficient Kappel propeller.
SCHOTTEL Debuts Underwater Mountable Thruster
SCHOTTEL has expanded its portfolio with the successful tests of the 5.5 MW SRP 800 U rudderpropeller, which can be installed afloat for vessels that cannot be docked easily due to their size or area of operation. Besides application in larger offshore vessels or rigs, the new and powerful SCHOTTEL thruster is suited for cable laying vessels, offshore construction vessels and crane ships. “As a result of customer requests, SCHOTTEL decided to further develop the robust, well-proven rudderpropeller technology in the power range up to 5.5 MW…
Laborde Products’ Vapor Power Heater Service
Since 2013, Laborde Products has been the nationwide distributor of Vapor Power’s Hi-R-Temp Thermal Fluid Heaters for the maritime industry. In addition to new heater sales and commissioning, Laborde Products offers complete Vapor Heater service and support for the marine industry throughout the U.S. Laborde’s Services include cook offs, USCG inspections, cleanings and repairs. Vapor Power’s Hi-R-Temp thermal fluid heaters offer marine customers lower capital investment, a smaller, customizable foot print to save deck space, greater fuel economy, and quicker heat up times.
Tech File: HydroComp NavCad for Optimized Design
HydroComp NavCad, internationally recognized for resistance and propulsion prediction for naval architects, can also leverage analysis capabilities with features that support optimized hull form and propulsion system design. NavCad may be most well-known for its library of parametric-statistical hull form and propulsion system models (often called “1D” models). The recent introduction of the Premium Edition now brings a higher-order distributed-analytical (“2D”) hull form analysis to design optimization.
MAN Diesel & Turbo, MM-Offshore Partner
At a signing ceremony on June 1 at the Nor-Shipping trade fair in Norway, engines manufacturer MAN Diesel & Turbo signed a cooperation agreement with ship equipment supplier MM-Offshore. The impetus for the agreement stems from industry efforts to enhance ship performance. These have resulted in highly efficient propulsion and maneuvering systems with both now optimized – individually – essentially to perfection. He added, “A number of recent projects have already documented how beneficial such a combined optimization could be for ship designers…