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The steam generating plant consists of two oil fired auxiliary boilers and one exhaust gas economizer. In port the steam demand of the plant is served by the oil fired boilers. At sea, the steam demand is met by supplying boiler water to the exhaust gas economizer and utilizing the waste heat from the main…
Before starting the engine, the following checks and procedures are to be undertaken. All components that have been overhauled to be checked and wherever possible function tested. All equipment, tools and rags used during overhaul to be removed from the engine. Air Systems a) Drain any water present from the starting air system. b) Drain…
The Gauging system Most of the terminals these days demand that a closed gauging / sampling system be followed on all tankers at their terminals. This means that the tanker must be able to gauge or sample the cargo in her tanks manually or automatically without opening her cargo tanks to the atmosphere. In this…
Construction and Maintenance In any dock, all parts, whether fixed or moveable or every lifting machinery and every chain, ring, hook, shackle, swivel or pulley block used in hoisting or lowering shall be: Of good construction, sound material, adequate strength and free from defects; Properly maintained; and Thoroughly examined once at least every 12 months…
Containers A standard container is basically a rectangular box with 5 sides closed and the sixth being the door. A box can be constructed in many ways, two most commonly used methods are: (a) Construction using same material throughout & (b) Using a frame and attaching varying materials to the frame. The example…
INDEPENDENT TANKS These types of tanks are completely self-supporting and do not form part of the ship’s hull and do not contribute to the hull strength. Depending mainly on design pressure, there are three different types of independent tanks for gas carriers, Types A, B and C MARVS: – Maximum Allowable Relief Valve setting on…
Inert gas system The salient features of the inert gas regulations are listed below Note: Nitrogen generators are now used on Chemical tankers due to the nature of Nitrogen (No soot or water carry over). The system consists of the following components Boiler uptake valves Two pipes used to direct the Flue gases emanating from…
The circumstances of a substantial claim recently settled by the Club in respect to cargo contamination and shortage clearly underline the fact that some masters do not understand that the suitability of cargo spaces for the intended cargo is their responsibility and theirs alone. Inadequate Cleaning of Cargo Tanks In this instance, the ship had…
Cargo heating Normally cargo heating uses steam as the media for heat exchange, but some ships use special hydraulic oil as a medium. The voyage orders will clearly indicate if the cargo requires heating and the temperature to be maintained. Normally the heating clause in a charter party requires the cargo to be carried at…
Stowage on container vessels The modern container vessel is also divided into holds, but using a similar system for containers would be impossible as a hold may contain anywhere between 50 to 250 containers and the port stay is in hours. Some system to identify each slot in which a container could be loaded had…