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Monthly Archives: June 2023

CARGO PUMPS

Normally on oil tankers the main cargo pump system consists of three vertical centrifugal single stage double suction type cargo pumps. They are situated at the bottom of the pump room and are driven by a single stage Curtis steam turbine and intermediate shaft passing

DECK FOAM FIRE EXTINGUISHING SYSTEM

The foam system supplies foam to eight monitors at various points on upper deck. The liquid foam making chemical is stored in a 3.7m3 tank located inside the hydraulic pump unit, foam tank room and fire control station in side accommodation on the upper deck.

DOMESTIC  REFRIGERATION SYSTEM

Cooling for the meat/fish, vegetable and dairy rooms is provided by a direct expansion R-404a refrigeration system. The plant is automatic and consists of two compressors, two condensers and an evaporator coil in each of the three cold and cool rooms; the lobby is cooled

ACCOMMODATION AIR CONDITIONING PLANT

The air conditioning system is designed to cool air if required, provide heating to the air when needed and  humidify the air to the correct level for comfort. A by product of air conditioning is the lowering of the air’s dew point and precipitation of

SEWAGE TREATMENT

The sewage treatment plant treats all sewage in a three tank unit using activated sludge  and  extended aeration.   Sewage Treatment Plant The sewage treatment plant consists of three separate tanks through which the sewage passes and during that passage through the tanks bacteria effectively

INCINERATOR AND GARBAGE  DISPOSAL

The incinerator  consists of a combustion  chamber with burner unit, sludge burning equipment and electric control panel all assembled in one complete unit. The  incinerator  can  burn  solid  garbage  waste,  engine  room  waste  oil and diesel oil to assist the total combustion when required. The

BOSUN’S STORE AND CHAIN LOCKER BILGE SYSTEM

A single bilge eductor, driven by sea water from the fire/wash deck line, is provided for the drainage of the bosun’s store and chain locker bilges. Each suction point is equipped with a non-return suction valve. Procedure for Discharging Bilge Water from the Chain Locker

MARINE GROWTH  PREVENTION SYSTEM

The growth of marine micro-organisms in the ship’s sea water piping is prevented  by the injection  of chlorine  at a controlled  rate. The chlorine  is injected into the sea suction chests and is circulated throughout the sea water system by the operating pumps. Chlorine is

FRESH WATER EVAPORATOR

The fresh water generator (evaporator) installed in the engine room utilizes the heat available from the main engine jacket cooling water system to produce fresh water for use on-board the vessel. In doing so the evaporator acts as a cooler for the main engine jacket

MARPOL ANNEX-3

REGULATIONS FOR THE PREVENTION OF POLLUTION BY HARMFUL SUBSTANCES CARRIED BY SEA IN PACKAGED FORM. Explanation of Annex III       Annex III applies to all ships to which MARPOL applies which carry harmful substances in packaged form. Harmful substances are those identified as marine pollutants in