Sunday 11 August 2013

BUNKER CALCULATION


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BUNKER CALCULATION 

   TAKE THE ULLAGE OF THE TANK AS IT IS HEAVY OIL THE ULLAGE IS 2.99.mtr.ASK BRIDGE ABOUT TRIM SUPPOSE TRIM IS 0.8mtr.BY AFT,FROM SOUNDING TABLE TAKE THE TRIM CORRECTION . IF ULLAGE TRIM CORRECTION FOR 0.8mtr. is -2cm. NOW THE ULLAGE IS 2,97.mtr. THE VOLUME OF ULLAGE IS 105.529.m3 ,THIS IS OBSERVED VOLUME,

TAKE THE TEMPERATURE OF THE TANK THE TEMPERATURE IS 48°C. 
AS THE BUNKER DELIVERY NOTE THE DENSITY OF THE BUNKER IS 988.KG/m3.AT  15°C.

 FROM THE VOLUME CORRECTION TABLE WE CAN FIND OUT THE CORRECTION FACTOR FOR THE OIL FOR 988.KG/m3 DENSITY IS 0.9773. 
 
TEMP.°C
DENSITY AT 15°C.KG/m3
CORRECTION FACTOR
48°C
988.KG/m3
0.9773
THERE FORE THE VOLUME OF OIL AT 15°C.WILL BE105.529 MULTIPLIED BY 0.9773 = 103.133.m3
THE DENSITY IS THE ABSOLUTE RELATION SHIP BETWEEN MASS AND VOLUME, NOT WEIGHT TO VOLUME.THE DENSITY IS THERE FORE "IN VACUO"
SO,  MASS = DENSITY X VOLUME = 988.kg  X 103.133  =  101895.89.kg = 101.896.M.T. THIS IS IN VACUO

DENSITY AT 15°C.KG/m3
FACTOR FOR CONVERTING WEIGHT IN VACUO TO WEIGHT IN AIR
975.7  to  1060.4
0.99895

SO WEIGHT OF THE BUNKER IN AIR = 101.896 X 0.99895 = 101.781.M.T.


                                            
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