Connecting Sailors Around the World
Clean ballast is taken at sea after thoroughly cleaning the dedicated cargo tanks.Before taking in clean ballast the slop tanks which contain the tank washings have to be carefully decanted. That is using the ODME in compliance with MARPOL regulations, only the clean water which would have settled to the
Read More
Crankcase explosion Under normal circumstances, the air in the crankcase will contain droplets formed by lubricating oil splashing from the bearings and impinging on moving surfaces. If a hot spot develops and the oil mist reaches a certain concentration, it will be ignited and a primary explosion will occur. For such
Read More
Every day is like facing a battlefield filled with stress, pain, tension, panic situations, etc and it is a usual part of life. Men who knows to manage all these emotions are successful not only in there life ,but also in their career and profession. At sea, new problems are encountered,
Read More
Enhanced survey program For bulk carrier and tankers above 10 years of age. Some Basic responsibilities of Chief officer are 1) A chief officer should have access plan to the location being surveyed for enhanced survey program, which includes risk assessment for such an operation. 2) A chief officer should ensure proper illumination
Read More
Onboard ship for the production of fresh water for drinking purpose and other sanitary uses fresh water generator is provided There are 4 types of freshwater generator : 1.Submerged type: also known as a single-effect boiling evaporator. It was one of the first types of f.w.g. used in olden days. Was very
Read More
Steel is one of the most common ingredients in the world, represents an industry that produces 1.6 billion tons annually, and it is the material to be used during the construction of many architectural structures during shipbuilding. depending on the characteristics and properties of a particular construction, the choice of
Read More
Types of boilers: Water tube type: this type of boiler is used for high pressure, high temperature, high capacity steam applications eg for main propulsion turbines or cargo pump turbines. Fire tube type: used for low-pressure steam on diesel engine powered ships. Saturated steam is the steam which is in physical
Read More
Scavenge Space Fires can occur in the scavenge trunking of large bore, 2 stroke engines as a result of oil and carbon that has been blown from the cylinders through the scavenge port and collected in the spaces. The source of heat to ignite the fire is usually sparks and the
Read More
Gear pump/gear wheel pump / positive displacement pump This is a rotary displacement or a rotary positive displacement pump. There are two gears, one is driven by an electric motor through a chain or wheel drive. The other gear is known as the idle gear. Initially, when there is no
Read More
As with other ships, tankers are high in the water (they have a large freeboard) when empty. Due to this the bow tends to bounce along the waves instead of slicing through them. This causes heavy stresses and also decreases the stability of the ship. Ballast is taken to increase
Read More