How Air Lubrication System for Ships Works?
When Mitsubishi came out with their Air Lubrication System, it was just one of the several energy saving techniques for ships. The Mitsubishi Air Lubrication System (MALS) was the first…
Sea Trials:
Taking a boat for a sea trial—or taking it for "test run"—should be an essential part of the boat-buying process. What to look for during this test, however, isn’t always…
Design of Exhaust Gas System
On ships, the work done by marine engines to keep the plant running for propelling a ship requires burning of fuel. The energy converted inside the cylinder of the engine is not…
How The Power Requirement Of A Ship Is Estimated?
One of the most important stages of a ship design process is the estimation, calculation and optimisation of a ship’s power requirements. Why? Because the power of a ship is a deciding…
How backlash affects gears
In order to obtain the amount of backlash desired, it is necessary to decrease tooth thickness. See Figure 14-1. This decrease must almost always be greater than the desired backlash because…
Anchor Windlass
Anchors play a critical role in the maneuvering of ships and aid them in safely docking at ports and on the high seas. To keep an entire vessel (weighing a few hundred tons)…
Comparison Between Four Stroke Cycle And Two Stroke Cycle Engine
Two Stroke Cycle Engine Merits: One power stroke in one revolution of the crankshaft Power developed for the same engine speed theoretically twice that of a four stroke engine Simple…
Electrical Propulsion System
The conventional propulsion system of ships is efficient but requires high operating costs and increases marine pollution. Among all prospective alternate power sources for ships, electrical propulsion system is one…
High Voltage Systems On Ships
As the ship’s size and capacity increases, bigger machinery/ equipment are installed to ensure its operational efficiency; however high voltage is used only for few important machinery systems. Usually a…
Generator Safety
Generators onboard ships are the power suppliers for the entire vessel and are the primary sources of power to all running machinery systems, including the propulsion plant. For this reason,…
