Ships bunkering procedure -Measurement of barge & confirmation to Fuel oil supplier
The operation of cargo ships bunkering involved many hazards. There are many check items that should be complied with to ensure a safe working atmosphere.
Observance of following precautions by crew are the most common practice that should be complied with.
Confirmation before bunkering
(a) The Fuel oil supplier shall submit the document to the Chief Engineer of the vessel before loading that mentions at least the viscosity, density,sulphur content and volume of FO.
(b) The FO supplier shall submit retained samples representing the replenishing FO (which has been signed and sealed by both the vessel side and the supplier).
(c) The local agent should confirm the following items with the Fuel Oil supplier:
The movement of the vessel, date and time and place of the Bunkering.
FO volume (in metric ton).
Type of FO. Viscosity .
Density
Sulphur content
(d) The local agent shall also inform the name of supplying vessel and the supplier before arrival at the port
Confirmation to Fuel oil supplier before loading
Chief Engineer shall receive Bunker Delivery Note from supplier (or the captain of the barge or the witness) and confirm in writing the viscosity, density, Sulphur content and volume in good order.
Chief Engineer shall confirm with the Supplier or the local agent whether they have any local requirement to preventing oil pollution to be applied the vessel.
Measurement of barge before loading
The Chief Engineer shall have the engineer in charge attend the meeting on the measurement of the barge the loading and the necessary matters related to the FO loading work, and shall check the following items strictly:
(a) Confirmation of the volume in the document, and confirmation of the seals on valves and ullage holes.
(b) Check of presence/absence of oil to be loaded to other ships on the barge.
(c) Tank sounding and water check by water ribbon or the like.
(d) Attendance to the calculation of the FO volume using the tank table of the barge and the adjustment of FO weight by density and temperature.
(e) Confirmation of the loading order by oil type (DO,FO) and pumping rate (including a slow rate of pumping at the start, finish and while changing over tanks)
(f) Confirmation of communication methods between the vessel and barge (an audio transmission and receiving method, such as use of intrinsically safe type transceiver), communication methods in an emergency, and emergency shutdown procedures.
Confirmation just after Bunkering.
(1) Confirmation of dried-up condition of barge
The Chief Engineer shall have the engineer in charge confirm the dried-up condition of the barge tanks (or the shore tank meter), just after pump stopping.
(2) Confirmation of volume just after Bunkering:
After the bunkering, if a big difference exists between the measurement by the vessel side and that by the supplier (though it depends upon the total refueling volume, for example, about 2% or more to the expected refueling of 1,000 metric tons and about 5% or more to the expected DO refueling volume of 100 metric tons may be a standard), the Chief Engineer shall prepare and submit a protest letter with the measurement by the vessel side to the Fuel Section (copy to the Technical Superintendent).
In this case, the volume measured by the vessel side shall be entered in a remarks column on the bunker receipt, and it is desirable to obtain the suppliers signature on the protest letter.
For the form of a protest letter, refer to the , Protest on Bunker Shortage.
(3) When the following matters besides shortage volume are generated the Chief Engineer shall prepare and submit a STATEMENT OF FACT (FREE FORM) to the Operation Section and the Fuel Section (copy to the Technical Superintendent) without hesitation :
The Barge did not arrive according to time.
The correspondence of the crew of the Barge is unjust.
Additionally, matter thought that Bunkering (Operation) is unjust.
Burning trial
The Chief Engineer shall carry out a burning trial as early as possible after the completion of bunkering to grasp the qualities of the replenished FO, and shall endeavor to prevent engine troubles caused by the qualities of the FO beforehand.
The burning trial shall be carried out according to the following procedures:
(a) When an analysis by third party is carried out, the burning trial shall be done immediately , talking account of the analysis results.
(b) When an analysis by third party is carried out, the burning trial shall be carried out at an earliest opportunity.
(c)The burning trial shall be carried out for one or two days, ensuring that FO in the FO settling tanks and service tanks has been replaced.
(d) During the burning trial, great attention shall be given to discharging conditions of sludge and water from purifiers, operational factors, such as exhaust temperature and maximum pressure of the main engine, change of the color of smoke and so on.
Abnormal burning or generation of large amount of mixed sludge and the like (if any) shall be reported immediately to the Technical Superintendent and the Fuel Section (copy to the Operation Section).
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