
Fired-heater data sheet USC units
rev.: date: sheet 3 of 6
Mechanical design conditions
1 *plot limitations: *stack limitations: rev.
2 *tube limitations: *noise limitations:
3
*structural design data: wind velocity: *wind occurrence:
4
snow load: *seismic zone:
5
*minimum/normal/maximum ambient air temperature, °F: *relative humidity, %
6 heater section:
7 service:
8
Coil design:
9 *design basis: tube-wall thickness (code or spec.)
10 rupture strength (minimum or average)
11 *stress-to-rupture basis, h
12 *design pressure, elastic/rupture, psi
13 *design fluid temperature, °F
14 *temperature allowance, °F
15 corrosion allowance, tubes/fittings, in
16 hydrostatic test pressure, psi
17 *post-weld heat treatment (yes or no)
18 * % of welds fully radiographed
19 maximum (clean) tube metal temperature, °F
20 design tube metal temperature, °F
21
inside film coefficient, Btu/h ft
2
-°F
22
Coil arrangement:
23 tube orientation: vertical or horizontal
24 *tube material (specification and grade)
25 tube outside diameter, in
26 tube-wall thickness, (minimum) (average), in
27 number of flow passes
28 number of tubes
29 number of tubes per row (convection section)
30 overall tube length, ft
31 effective tube length, ft
32 bare tubes: number
33
total exposed surface, ft
2
34 extended surface tubes: number
35
total exposed surface, ft
2
36 tube layout (in line or staggered)
37
tube spacing, cent. to cent.: horiz. × diag. (or vert.)
38 spacing tube cent. to furnace wall (min.), in
39 corbels (yes or no)
40 corbel width, in
41
Description of extended surface:
42 type: (studs) (serrated fins) (solid fins)
43 material
44
dimensions (height × diameter/thickness), in
45 spacing (fins/in) (studs/plane)
46 maximum tip temperature (calculated), °F
47 extension ratio (total area/bare area)
48
Plug type headers:
49 *type
50 material (specification and grade)
51 nominal rating
52 *location (one or both ends)
53 welded or rolled joint
54 Notes:
55
56
ANSI/API Standard 560/ISO 13705
Copyright American Petroleum Institute
Provided by IHS under license with API
Licensee=TECNA/5935100001
Not for Resale, 09/06/2007 11:42:18 MDT
No reproduction or networking permitted without license from IHS
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