MATERIALS USED IN SHIPBUILDING
INTRODUCTION
There is a
wide range of materials used in shipbuilding comprising ferrous metals, non-
ferrous metals, plastics, GRP (Glass Reinforced Plastics/ fiber glass) and
wood.The most
widely used material in ship building remains steel especially plan carbon or
mild...
TONNES PER CENTIMETRE IMMERSION (TPC)
The Tonnes Per Centimetre Immersion(TPC) for any draft is the mass which must be loaded or discharged to change a ship’s mean draft in salt water by one centimetre.
The TPC varies with the draught...
RESERVE BUOYANCY
Reserve buoyancy can be defined as the volume of the enclosed spaces above the waterline. It can be expressed as a volume or as a percentage of the total volume of the vessel.
The volume...
LOAD LINE AND FREEBOARD
Load Line:- Load line is a special marking amidships which shows the draft of the vessel and the maximum permitted limit in distinct types of waters to which the ship can be loaded.
FREEBOARD:- Freeboard...
HEAT TREATMENT
Heat Treatments
Heat treatments are used to change the physical & mechanical properties of the metal without changing its shape. They are important processes in metal manufacturing which increase required characteristic of the metal, while...
LUBE OIL ANALYSIS
Oil analysis(OA) is the lab test of the lube oil properties, suspended contaminants, and wear debris. OA is performed during routine maintenance to provide meaningful and accurate information on lubricant and machine condition. By...
BASIC CONCEPT OF INTELLIGENT ENGINE
central electronic control system is the brain
of the system which monitors and evaluate the general condition to keep the
operating parameter within limits and keep the performance of the engine
better.The intelligent engine provides flexibility in
operation...
FRESHWATER ALLOWANCE(FWA) & DOCKWATER ALLOWANCE(DWA)
The Fresh Water Allowance is the number of millimetres by which the mean
draft changes when a ship passes from salt water to fresh water, or vice versa,
whilst floating at the loaded draft.
FWA(in mm)...
SPECIAL AREAS OF MARPOL
MARPOL states that specific sea areas as special sea areas where for some scientific reasons related to their oceanographical and ecological condition and to their sea traffic, the acceptance of special compulsory procedure...
