SF 1449 CONTINUATION SHEET DABV01-03-Q-2213

SF 1449 CONTINUATION SHEET DABV01-03-Q-2213 ITEMQUANDESCRIPTIONUNIT COSTTOTALDELIVERY 0001 2 SETS Two complete replacement sets of boiler superheater coils for the Bayji power plant. This includes the primary and secondary superheaters.

The steam generator is of the natural circulation, pressurized, tangentially fired, radiant, reheat type.
Steam Generator Operating Conditions at MCR
S.H. Steam Flow T/h: 715
Steam Temperature at S.H. Outlet °C: 540
Steam Pressure at S.H. Outlet kg/cm2: 144
R.H. Steam Flow T/h: 656
Steam Temperature, at R.H. Inlet °C: 377
Steam Pressure at R.H. Inlet kg/cm2: 43
Steam Temperature at R.H. Outlet °C: 540
Steam Pressure at R.H. Outlet kg/cm2: 41
Feedwater Temperature at Economizer Inlet °C: 252

Steam Pressures and Temperatures
Drum Pressure kg/cm2g: 155
Primary Superheater Inlet Temperature °C: 342
Primary Superheater Outlet Temperature °C: 398
Secondary Superheater Inlet Temperature °C: 398
Secondary Superheater Outlet Temperature °C: 540
Reheat Inlet Temperature °C: 327
Reheat Outlet Temperature °C: 540
Pressure Drop Through Superheater kg/cm2g: 11
Pressure Drop Through Reheater kg/cm2g: 2

Superheater (primary) LT. & I.T.
Type Horizontal
Effective Heating Surface rn2: 910
Material Specification A 213 T22
Tube Outside Diameter mm: 44.5
Thickness 6.4 – 7.9
Number of Elements 50
Number of Flows per Element 4
Transversal Tube Pitch mm: 101.6


Superheater (secondary) H.T.
Type Horizontal
Effective Heating Surface m2: 1,220
Material Specification A 213T 11/A 213T 22
 A 213 TP 347 H
Tube Outside Diameter mm: 50.8/44.5
Tube Thickness mm: 6.4/7.2/7.9
 mm: 9 / 4 / 4.5
Number of Elements 100
Number of Flows per Element 2
Transversal Tube Pitch 101.6 0002 2 SETS Supply two complete sets of reheater coils

Reheater Type Horizontal
Effective Heating Surface m2: 3,103
Design Pressure kg/cm2g: 52
Rear Reheater
Material specification A 192/A 213T 11
Tube outside diameter mm: 57.15
Thickness mm: 3.9
Number of elements 100
Number of flow per element 3
Transversal tube pitch mm: 101.6
Front Reheater
Material specification A 213T 22/A 213TP 304 H
Tube outside diameter mm: 54
Thickness mm: 4.2/4.6/3.6
Number of elements 100
Number of flow per element 3
Transversal tube pitch mm: 101.6

Include reducer at end of hot RH coil section (57 mm to 54 mm OD), A213-T-22 material, 3.9 mm. 0003 4 SETS Tube panels to replace the four lower water wall for the boiler (each 11 meters in length). Typically the panels are 7 tubes wide and are welded in the field. Stated another way, the number of 7 wide panels that comprise the 4 lower furnace wall sections will be about 53 panels.

Furnace Tubes
Material Specification A-210-A1
Maximum Design Metal Temperature °C: 400
Design Pressure kg/cm2g: 165
Tube Diameter Outside mm: 63.5
Tube Thickness mm: 5.7
Tube Spacing mm: 76.2
Thickness arid Width of Fusion Weld mm: 6.5/12.7
Direction of Expansion Down