Search results
Results from the WOW.Com Content Network
It can be used for any electrical ship application up to 20 megawatts and operates at a nominal voltage of 1000 V DC. The DC distribution system is simply an extension of the multiple DC links that already exist in all propulsion and thruster drives, which usually account for more than 80 percent of the electrical power consumption on electric ...
The electricity generated was connected to its city power transmission lines. It produced and supplemented about 15% of the total electrical power needed for Portsmouth and about 30% of its total steam power requirements. [18] [19] The steam was super-heated to 250 °F (121 °C) and was at 400 pounds per square inch (2,800 kPa) of pressure. [20]
This externally sourced power serves the ship's internal cargo handling machinery and hotelling requirements. [jargon] Effectively, all the power generating sources are shut down and the ship is hence cold-ironed. This brings immediate relief from pollution by shipboard emissions and allows a more holistic maintenance schedule to be followed by ...
The American Bureau of Shipping (ABS) is an American maritime classification society established in 1862. [1] Its stated mission is to promote the security of life, property, and the natural environment, primarily through the development and verification of standards for the design, construction and operational maintenance of marine and offshore assets.
Principle of a CODLAG propulsion system. Combined diesel–electric and gas (CODLAG) is a modification of the combined diesel and gas propulsion system for ships.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.
Get AOL Mail for FREE! Manage your email like never before with travel, photo & document views. Personalize your inbox with themes & tabs. You've Got Mail!
The summer timber load line is arrived at from the appropriate tables in the load line rules. [11] The winter timber load line is one thirty-sixth of the summer timber load draft below the summer timber load line. The tropical timber load line is one forty-eighth of the summer timber load draft above the summer timber load line.
When looking at diesel driven vessels, the engines induce large accelerations that travel from the foundation of the engine throughout the ship. In most compartments, this type of vibration normally manifests itself as audible noise. The problem with diesels is that, for a given size, there is a fixed amount of power generated per cylinder.