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The fuel system - PowerPoint PPT Presentation


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The fuel system. Fuel pumps. Engine. mu. Fuel pumps. Engine. Types of fuels. Diesel engines consume Heavy Fuel Oil (HFO), Marine Diesel oil (MDO) or Intermediate Fuel Oil (IFO). S. Types of fuels. HFO is a residual oil that is made suitable for driving Diesel engines by

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Presentation Transcript
slide1
The fuel system

Fuel pumps

Engine

mu

slide2
Fuel pumps

Engine

Types of fuels

Diesel engines consume Heavy Fuel Oil (HFO),

Marine Diesel oil (MDO) or Intermediate Fuel Oil (IFO).

S

slide3
Types of fuels

HFO is a residual oil that is made

suitable for driving Diesel engines by

adding certain flammable substances.

HFO

MDO is a high-grade fuel of

low viscosity that is used when the vessel

is manoeuvring.

MDO

Modern Diesel engines are run

on IFO, a fuel whose grade lies

between that of HFO and MDO.

IFO

slide4
HFO

HFO

MDO

Fuel pumps

Engine

HFO

From the Heavy Fuel Oil bunkertank

the preheated fuel is led to the settling tank.

Settling tank

slide5
HFO

HFO

MDO

Fuel pumps

Engine

HFO

In the settling tank water and impurities are separated from the fuel and drained off.

Settling tank

Drain-valve

s

slide6
HFO

HFO

MDO

Fuel pumps

Engine

HFO

From the settling tank the fuel is led through a heater to preheat the fuel.

slide7
HFO

HFO

MDO

Fuel pumps

Engine

HFO

From the heater the fuel is led through a separator (purifier / clarifier) to purify the fuel.

slide8
HFO

HFO

MDO

Fuel pumps

Engine

HFO

From the separator the fuel enters the

daily service tank for HFO.

sound

slide9
HFO

HFO

MDO

Fuel pumps

Engine

HFO

There are two daily service tanks, so that one tank may be used while the other is being filled.

Daily service tank

Daily service tank

sound

slide10
HFO

HFO

MDO

Fuel pumps

Engine

HFO

From the daily service tank the fuel is pumped to a heater by the low pressure fuel pump (or “booster pump”).

s

slide11
HFO

HFO

MDO

Fuel pumps

Engine

HFO

From the heater the HFO is passed through a viscosity regulator .

slide12
HFO

HFO

MDO

Fuel pumps

Engine

HFO

From the viscosity regulator the fuel is passed through a fuel strainer , which filters the fuel.

slide13
HFO

HFO

MDO

Fuel pumps

Engine

HFO

From the fuel strainer the oil is led to the fuel pumps in the engine.

sound

slide14
HFO

HFO

MDO

Fuel pumps

Engine

MDO

Diesel oil is used for manoeuvring and is stored in the MDO bunkertank.

slide15
HFO

HFO

MDO

Fuel pumps

Engine

MDO

After the DO has been pumped up from

the bunkertank, the fuel passes through

a purifier .

slide16
HFO

HFO

MDO

Fuel pumps

Engine

MDO

From the purifier the DO enters the

DO storage tank.

s

slide17
HFO

HFO

MDO

Fuel pumps

Engine

MDO

From the DO service tank the fuel is led to the high-pressure fuel pumps in the engine.

s

slide18
HFO

HFO

MDO

Fuel pumps

Engine

A mixing tank is used for a gradual transition from HFO to DO.

sound

Mixing tank

slide19
HFO

HFO

MDO

Fuel pumps

Engine

The mixing tank, or “buffer tank”, can hold

a quantity of fuel which will be circulated

and led to the engine.

Buffer tank

(Circulating tank)

sound

slide20
HFO

HFO

MDO

Fuel pumps

Engine

The hot fuel fumes can escape through

the air vent in the mixing tank.

s

Air vent

slide21
Test 2:

Indicate whether the assertion is

or

Indicate in the textbox

or in the IMLP-coursebook

why you think the assertion

is wrong.

The fuel system

slide22
Types of fuels

HFO is a residual oil that is made suitable for driving Diesel engines by removing certain flammable substances.

HFO

…..because:

MDO is a low-grade fuel of high viscosity that

is used when the vessel is manoeuvring.

MDO

…..because:

Modern Diesel engines are run on IFO, a fuel whose grade lies between that of HFO and MDO.

IFO

1

right or wrong

slide23
HFO

HFO

MDO

Fuel pumps

Engine

From the Heavy Fuel Oil bunkertank the fuel is led to the settling tank.

Settling

tank

2

right or wrong

slide24
HFO

HFO

MDO

Fuel pumps

Engine

…..because:

In the settling tank the fuel is drained off after it has been separated from water and impurities.

Settling

tank

3

right or wrong

slide25
HFO

HFO

MDO

Fuel pumps

Engine

…..because:

From the settling tank the fuel is first led through a purifier and then through a separator.

Settling

tank

4

right or wrong

slide26
HFO

HFO

MDO

Fuel pumps

Engine

From the separator the fuel enters the

daily service tank.

Settling

tank

5

right or wrong

slide27
HFO

HFO

MDO

Fuel pumps

Engine

…..because:

There are two daily service tanks:

one to preheat the fuel, the other to purify the fuel.

Settling

tank

6

right or wrong

slide28
HFO

HFO

MDO

Fuel pumps

Engine

From the daily service tank the fuel is pumped to a heater by the booster pump.

Settling

tank

7

right or wrong

slide29
HFO

HFO

MDO

Fuel pumps

Engine

…..because:

From the heater the HFO is passed through a separator .

Settling

tank

8

right or wrong

slide30
HFO

HFO

MDO

Fuel pumps

Engine

…..because:

A fuel strainer preheats and filters the fuel.

Settling

tank

9

right or wrong

slide31
HFO

HFO

MDO

Fuel pumps

Engine

…..because:

From the fuel strainer the oil is led to the

low pressure fuel pumps in the engine.

Settling

tank

10

right or wrong

slide32
HFO

HFO

MDO

Fuel pumps

Engine

…..because:

Diesel oil is used for manoeuvring and is stored in three daily service tanks.

Settling

tank

11

right or wrong

slide33
HFO

HFO

MDO

Fuel pumps

Engine

After the DO has been pumped up from the bunkertank, it is passed through a purifier.

Settling

tank

12

right or wrong

slide34
HFO

HFO

MDO

Fuel pumps

Engine

…..because:

From the purifier the DO enters the settling tank.

Settling

tank

13

right or wrong

slide35
HFO

HFO

MDO

Fuel pumps

Engine

…..because:

From the DO service tank the fuel is led through a separator, heater, viscosity controller and strainer to the fuel pumps in the engine.

Settling

tank

14

right or wrong

slide36
HFO

HFO

MDO

Fuel pumps

Engine

…..because:

A mixing tank is used to drain off water and impurities from the fuel.

Settling

tank

Mixing

tank

15

right or wrong

slide37
HFO

HFO

MDO

Fuel pumps

Engine

…..because:

The hot fuel fumes can escape through the

air vent into the mixing tank.

Settling

tank

Mixing

tank

16

sound

right or wrong

slide38
C P.C. van Kluijven

SHIPPING AND TRANSPORT COLLEGE ROTTERDAM

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