CEA 4001 - Page 68

190 pages

Save Page as PDF

To Next Page

To Next Page

To Previous Page

To Previous Page

Loading...

68

broken

the

remaining

belts

shall

be

capable

of

driving

the

fan.

Where

cooling

water

is

taken

from

the

pump

in

quantities

exceeding

2%

of

the

maximum

calculated

system

demand

rate,

the

flow

shall

be

taken

into

account

in

the

system

calculations.

9.9.4 Air filtration and intake

The

air

intake

shall

be

fitted

with

a

suitable

filter.

Provision

shall

be

made

for

a

suitable

air

intake

into

the

pump

room

to

ensure

the

correct

operation

of

the

engine.

9.9.5 Exhaust system

The

exhaust

pipe

shall

be

fitted

with

a

suitable

silencer

and

the

total

back

pressure

shall

not

exceed

the

engine-maker’s

recommendation.

Where

the

exhaust

pipe

is

higher

than

the

engine,

means

shall

be

provided

to

prevent

any

condensate

flowing back

to

the

engine.

The

exhaust

pipe

shall

be

positioned

in

such

a

way

as

to

prevent

exhaust

gases

from

re- entering

the

pump

room.

9.9.6 Fuel, fuel tank and fuel feed pipes

The

quality

of

the

diesel

fuel

used

shall

conform

to

the

engine-maker's

instructions.

The

fuel

tank

shall

contain

fuel

oil

sufficient

to

enable

the

engine

to

run

on

full

load

for:

-

3

hours

for

LH;

-

4

hours

for

OH;

-

6

hours

for

HHP

and

HHS.

The

fuel

tank

shall

be

of

welded

steel.

Where

there

is

more

than

one

diesel

driven

pumpset,

there

shall

be

a

separate

fuel

tank

and

fuel

feed

pipe

for

each

engine.

The

fuel

tank

shall

be

fixed

at

a

higher

level

than

the

motor's

fuel

pump

to

ensure

a

positive

head,

but

not

directly

above

the

engine.

The

fuel

tank

shall

have

a

sturdy

fuel

level

gauge.

Any

valves

in

the

fuel

feed

pipe

between

the

fuel

tank

and

the

engines

shall

be

placed

adjacent

to

the

tank, have

an

indicator

and

be

locked

in

the

open

position.

Pipe

joints

shall

not

be

soldered.

Metallic

pipes

shall

be used

for

fuel

lines.

The

feed

pipe

shall

be

situated

at

least

20mm

above

the

bottom

of

the

fuel

tank.

A

drain

valve

of

at

least

20mm

diameter

shall

be

fitted

to

the

base

of

the

tank.

The

fuel

tank

vent

should

be

terminated

outside

the

building.

9.9.7 Starting mechanism

9.9.7.1 General

Automatic

and

manual

starting

systems

shall

be

provided

and

shall

be

independent

except

that

the

starter

motor

and

batteries

may

be

common

to

the

two

systems.

It

shall

be

possible

to

start

the

diesel

engine

both

automatically,

upon

receipt

of

a

signal

from

the

pressure

Table of Contents