fuel oil system purpose

7/30/2019 FUEL OIL SYSTEM Purpose

http://slidepdf.com/reader/full/fuel-oil-system-purpose 1/14

24 December 2012 PMI Revision 00 1

http://www.studygalaxy.com/




• Initial firing of the Boilers

• Flame stabilization

• Low load operation




• Light diesel oil (LDO)

• High speed diesel oil (HSD)

• Heavy Furnace oil (HFO)

• Low sulphur heavy stock (LSHS)




• LDO & HSD normally used in

• Auxiliary boiler

• Ignitor for certain boiler design.

• HFO generally used for power boiler




TYPICAL HFO SPECIFICATIONS

• Standard: IS 1593 / 1971

Grades LV-MV-HV

• Flash point: 660C (minimum)

• Viscosity (Max.): 80-120-370 CST at

500C

•

Gross heating value: 10270 Kcal/kg• Total Sulphur (Max.): 3.5-4-4.5%by weight




Presentation Outline

• FO unloading system

• FO storage

• FO pressuring pump house

• Safety procedure in FO handling




FO unloading system

• Heavy oil is received at the site in railway tankersof 20 tonne capacity each

•

An unloading header with number of receivingpoints for number of wagons unloading isprovided.

• The connections between loading header and

tankers are through rubber flexible hosepipes.• Railway tankers are equipped with steam heating

coils.




Transfer P/P

Strainers




HEATER

Steam

R/C

O/L

I/L

FILLING HDR

Suction HDR

Return Hdr

Return oil

From Unit




Suction Header Return Header

Recirculation P/P

OILTANK

OILTANK




Flash

Tank

Return SteamFrom Heater

Steam to Atmosphere

Water to Sump Pit

Sump Pump




DRAINHDR

DrainTank

OilTank




HOTV

HORV

CVOil Guns

fuel oil system purpose

Documents