Posted by : sanjay swain Saturday, August 3, 2013

IN GENERAL:

THE FUEL OIL SYSTEM FOR A DIESEL ENGINE CAN BE CONSIDERED IN TWO PARTS—THE FUEL SUPPLY AND THE FUEL INJECTION SYSTEMS. FUEL SUPPLY DEALS WITH THE PROVISION OF FUEL OIL SUITABLE FOR USE BY THE INJECTION SYSTEM.

IN SHIPS WHERE HEAVY FUEL OIL AND MARINE DIESEL OIL ARE USED, A CHANGE-OVER SYSTEM FROM ONE FUEL TO THE OTHER IS TO BE PROVIDED. THIS SYSTEM IS TO BE SO DESIGNED AS TO AVOID: 
  • OVERHEATING OF MARINE DIESEL OIL
  • INADVERTENT INGRESS OF HEAVY FUEL OIL INTO MARINE DIESEL OIL TANKS.
WHEN NECESSARY, ARRANGEMENTS ARE TO BE MADE FOR COOLING THE MARINE DIESEL OIL FROM ENGINE RETURN LINES.

FUEL OIL SERVICE TANK

· TWO FUEL OIL SERVICE TANKS FOR EACH TYPE OF FUEL USED ON BOARD NECESSARY FOR PROPULSION AND VITAL SYSTEMS, OR EQUIVALENT ARRANGEMENTS, ARE TO BE PROVIDED ON EACH NEW SHIP, WITH A CAPACITY OF AT LEAST 8 H AT MAXIMUM CONTINUOUS RATING OF THE PROPULSION PLANT AND NORMAL OPERATING LOAD AT SEA OF THE GENERATOR PLANT.
· WHERE MAIN ENGINES, AUXILIARY ENGINES AND BOILERS ARE OPERATED WITH HEAVY FUEL OIL, THE FOLLOWING EQUIVALENT ARRANGEMENTS MAY BE ACCEPTED FOR FUEL OIL SERVICE TANKS:
  • ONE HEAVY FUEL OIL SERVICE TANK WITH A CAPACITY OF AT LEAST 8 H AT MAXIMUM CONTINUOUS RATING OF THE PROPULSION PLANT AND NORMAL OPERATING LOAD AT SEA OF THE GENERATOR PLANT AND OF THE AUXILIARY BOILER
  • ONE MARINE DIESEL OIL SERVICE TANK WITH A CAPACITY OF AT LEAST 8 H AT MAXIMUM CONTINUOUS RATING OF THE PROPULSION PLANT AND NORMAL OPERATING LOAD AT SEA OF THE GENERATOR PLANT AND OF THE AUXILIARY BOILER.
WHERE MAIN ENGINE AND AUXILIARY BOILERS ARE OPERATED WITH HEAVY FUEL OIL AND AUXILIARY ENGINES ARE OPERATED WITH MARINE DIESEL OIL, THE FOLLOWING EQUIVALENT ARRANGEMENTS MAY BE ACCEPTED FOR FUEL OIL SERVICE TANKS:
  • ONE HEAVY FUEL OIL SERVICE TANK WITH A CAPACITY OF AT LEAST 8 H AT MAXIMUM CONTINUOUS RATING OF THE PROPULSION PLANT AND NORMAL OPERATING LOAD AT SEA OF THE AUXILIARY BOILER
  • TWO MARINE DIESEL OIL SERVICE TANKS, EACH WITH A CAPACITY OF AT LEAST THE HIGHER OF:
    • 8 H AT NORMAL OPERATING LOAD AT SEA OF THE AUXILIARY ENGINES
    • 4 H AT MAXIMUM CONTINUOUS RATING OF THE PROPULSION PLANT AND NORMAL OPERATING LOAD AT SEA OF THE GENERATOR PLANT AND OF THE AUXILIARY BOILER.
FUEL OIL SUPPLY TO BOILER AND INTERNALCONBUSTION ENGINE

A SLOW-SPEED TWO-STROKE DIESEL IS USUALLY ARRANGED TO OPERATE CONTINUOUSLY ON HEAVY FUEL AND HAVE AVAILABLE A DIESEL OIL SUPPLY FOR MANEUVERING CONDITIONS.BUT BEFORE THAT THE FUEL HAS TO BE COMPATIBLE WITH THE MAIN ENGINE.
THE PROCEDURE TO MAKE THE FUEL GOOD AFTER DECIDING WHICH ONE IS GOOD TAKE A LONG TIME TO PROCESS.




TO CHOOSE THE RIGHT FUEL FROM BUNKERING TO  FUEL INJECTION IN THE ENGINE CONSIST A LIST OF PROCEDURE WHICH CAN BE FOUND IN THE BOOK ATTACHED BELOW.

IT CONTAINS THE FOLLOWING:
1. BUNKERING

2. FUEL TESTING

3. STORAGE AND TRANSFER

4. SHIPBOARD TREATMENT OF MARINE FUELS
            a)FILTER

5. SETTLING TANK

6. ENVIRONMENT 

7. QUALITY REQUIREMENT

8. FUEL TECHNOLOGY

AND SOME GENERAL QUESTION TO ENHANCE YOUR MIND POWER.


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