GENERAL SHIP KNOWLEDGE (Machinery Spaces)

Machinery Spaces

Machinery Space

It is a space where Machineries / Equipments are located

 

Engine Room (ER)

It is a space where almost all the Machineries / Equipments are located

 

Some Machineries / Equipments are located outside the Engine Room also

Example:

Machinery / Equipment Location
Cranes & Winches Deck
Steering Gear Steering Gear Room
Cargo Pumps Pump Room
Navigational Equipments Bridge / Wheel House

 

Location of Engine Room

Engine Room is located either at the Aft or Midship or Fwd of the ship

 

Layout of Engine Room

Engine Room consists of many levels / floors / decks / platforms

Engine Room extends right from the bottommost level (Hull) to the level of the funnel

The Various Levels / Floors / Decks / Platforms in ER are:

  • Engine Room Casing
  • Engine Room Top Deck / Platform
  • Engine Room Middle Deck / Platform
  • Engine Room Bottom Deck / Platform

  1. Engine Room Casing

It is the space on the top of the ER (i.e. top most part of the ER)

(It extends from Upper Deck Level to Boat Deck Level / Accommodation Deck level)

Machineries / Equipments that are located in ER Casing –

Auxiliary Boiler, Exhaust Gas Boiler, Ventilation Fans and the Passage/Stairway connecting the Funnel

 

  1. Engine Room Top Deck / Platform

Machineries / Equipments that are located in ER Top Deck / Platform

(Layout of ER Top Platform)

MARPOL *Annex I (Regulations for the Prevention of Pollution by Oil)

Marpol

Annexure 1
regulation of the prevention from the oil pollution

Special areas

Mediterranean sea
Baltic sea
Black sea
Red sea
gulf of Aden
gulfs area

PURGING – it is an operation of the introduction of inert gas into the tank with the objective of further reduction of the existing oxygen or CH gas content to a level below which combustion cannot be supported.

LFL- it is the concentration of hydrocarbon in air below which the mixture becomes too lean to initiate or propagate combustion.

HFL-it is the concentration of hydrocarbon in air above which the mixture becomes too thick to initiate or propagate compulsion

EXPLOSIMETER -it indicates hydrocarbon content in air instrument explosimeter consists of a wheatstone bridge.

PSSA – PARTICULARLY SENSITIVE SEA AREA

slop tank – are present on board tankers to store oily water mixture from cargo tank washing.

SOPEP ( SHIP OIL POLLUTION EMERGENCY PLAN)

Master is over on incharge.
It guides the master and other crew members on board ship concerning the steps to be taken in case of oil pollution.

 

ODMCS (OIL DISCHARGE MONITORING AND CONTROL SYSTEM)

it is used to prevent the pollution of ocean by oil due to the discharge from ballast and bilge space consist of 4 essentials systems

first                oil content metre
second.        a flow metre
third.             computing unit
Fourth.         onboard valve unit

 

Clean Ballast 

Ballast tank since oil was carried, has to be cleaned so that it meets some standards like

If it were discharged from a ship which is stationary into the clean calm water on a clear day would not produce visible traces of oil on the surface of water or shorelines.

Ballast is discharged through ODMCS then oil content should not be more then 15PPM to be considered as clean ballast.

 

 

COW(CRUDE OIL WASHING)

-Oil cargos itself is used to wash the tanks

-when all cargo is spread with pressure on the tank walls and the surface, the sediments sticking to the wall dissolves and converts into useful cargo which can be formed out to shore tank

-eliminates the requirement of slop tank

OIL RECORD BOOK
PART 1

FOR ALL SHIPS MACHINERY SPACES

BLASTING AND CLEANING OF OIL FUEL TANKS

DISPOSAL OF OILY REDUCE DISCHARGE OF DIRTY BALLAST OR CLEANING WATERY FROM OIL FUEL TANKS

PART2
Cargo / ballast operation
Loading of oil cargo
unloading
ballasting
cleaning of the cargo tank
discharge of water from slope tank

 

IOPP
INTERNATIONAL OIL POLLUTION PREVENTION CERTIFICATE

It is issued to each new ship after an appointment surveyor has inspected and found it to be in compliance with marpol.
Give details of oils and filtering equipment and also associated monitoring equipment.

 

An oily water separator (OWS) (marine) is a piece of equipment specific to the shipping or marine industry. It is used to separate oil and water mixtures into their separate components. This page deals exclusively oily water separators aboard marine vessels. They are found on board ships where they are used to separate oil from oily wastewater such as bilge water before the wastewater is discharged into the environment. These discharges of wastewater must comply with the requirements laid out in Marpol 73/78.For information on more general oil water separators Oily Water Separators .

working criteria 15 ppm .

General guidance for Reefer Cargo Temperature Recording 

General guidance for Reefer Cargo Temperature Recording 

Reefer containers require special care after they are loaded on board ship. These containers need to be supplied with power, monitored closely for proper function and repaired as required in case of malfunction. The article here is about procedures and guidelines on reefer cargo Temperature Recording

Deck cadet, Tr OS generally takes the reefer round but since it is a valuable cargo OS or a AB should do it as per company requirement.

How much you can earn with reefer money?

Reefer money depends totally on charter, So some charter can pay less some pays more. Normally crew gets money for pluging reefers, Pluging out reefer and monitoring. Pluging in reefer 2$ / reefer, Pluging out reefer 2$/ reefer, Monitoring reefer can give 8$/ reefer container. And in case of Restow container you will get 4$. So of you have aroundd 200-300 reefers on board then each of the crew member will get somewhere around 300-450 $ for the whole sailing/Voyage. Some charter pary pay very less like 1$ plugin/plug out in that case the money crew earns in very less like 100$ for the full voyage.

How reefer money is distributed.

20% of the total amount goes to Batti Sahab (Electrical officer). Rest 80% is distributed in equal parts among all the deck crew, deck cedet and with tr. Electrical officer.

Reefer monitoring is generally done by the deck cadet (on papers OS or AB does). He can have a tablet for monitoring or something like that, Some vessels still maintain paper logs. What all is recorded in reefer round is Supply, Return and most important If the container is in range or not.

These charts should always carry the following endorsements:

> Name of Vessel
> Voyage Number
> Container Number
> Temperature Setting
> Load Port
> Discharge Port
> Date of Stuffing/Change
> Ventilators: Closed/Open (degrees)
> Humidity Controls (HMC) (percentage)

REMEMBER THIS

  • Load Density: Maximum Weight which can be loaded safely in an Area of 1 Sq. M. without causing any Damages to that area is called the Load Density of the area. It is given in Ship’s Stability Booklet and is expressed in m.t./Sq. M.
  • Cargo density: Cubage of a cargo divided by its weight.
  • Ullage is the void space in the tank measured from the top of the tank to the upper surface of the fluid.
  • Sounding: In nautical terms, the word sound is used to describe the process of determining the depth of water in a tank or under a ship. Tanks are sounded to determine the level of the liquid within the tank.
  • Displacement: of a ship is the weight of the ship or the weight of the water displaced by the ship.
  • Deadweight: Deadweight tonnage is the weight of all the cargo, fuel, dry provisions, supplies, etc. carried on board the ship. In other words, it is the “displacement tonnage” of the vessel minus the “lightweight tonnage”.