Forced Draft Fan

e.

Feedwater Temperature entering economizer:

[_____] degrees C F

f.

Feedwater Temperature leaving

economizer:

[_____] degrees C F

g.

Fouling factor on feedwater side:

[_____]

h.

Fouling factor on gas side:

[_____]

i.

Boiler operating pressure:

[_____] kPa (gage) psig

j.

Design pressure:

[_____] kPa (gage) psig

k.

Steam loads shall be as specified under boiler[s]

l.

Performance: The efficiency due to the economizer shall be

included with and stated as part of the overall boiler efficiency.

1.4.1.3

Forced Draft Fan

Design fan to handle air at temperatures from [_____] to [_____] degrees C

F. Fan shall be [single] [double] width inlet, [single] [double] width

outlet, with [clockwise] [counter-clockwise] rotation; viewed from the

[motor] [turbine] end.

1.4.1.4

Induced Draft Fan

Design fan of materials which will withstand flue gas temperatures up to

316 degrees C 600 degrees F without damage. Fan shall be [single] [double]

width inlet, [single] [double] width outlet, with [clockwise] [counter

clockwise] rotation when viewed from [motor] [turbine] end.

Provide

outboard pedestal bearings with sole plates [and dual extension shaft].

1.4.1.5

Screw Conveyors for Coal Handling Equipment

Each screw conveyor shall meet the following minimum design and performance

specifications when handling [_____] size coal:

CONVEYOR NO. 1

CONVEYOR NO. 2

a.

Capacity

[_____] Mg/hr

b.

Screw diameter

[_____] mm

c.

Length

[_____] meters

d.

Coupling diameter

[_____] mm

e.

Motor horsepower

[_____] kW

f.

Screw flight thickness

[_____] mm

g.

Trough thickness

[_____] mm

h.

Trough cover thickness

[_____] mm

i.

Trough end plate thickness

[_____] mm

j.

Maximum speed

[_____] rpm

SECTION 15502N

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