+----------------------------------------------------------------------------------------------------------------------------------+ | MECHANICAL DESIGN CONDITIONS | |----------------------------------------------------------------------------------------------------------------------------------| | 1| PLOT LIMITATIONS: ....... |REV| | 2| TUBE LIMITATIONS: ....... | | | 3| STRUCTURAL DESIGN DATA: WIND VELOCITY: ....... | | | 4| SNOW LOAD: ....... | | | 5| MINIMUM/NORMAL/MAXIMUM AMBIENT TEMPERATURE, deg C: .... / .... / .... | | |----------------------------------------------------------------------------------------------------------------------------------| | 6| COIL DESIGN: | | |----------------------------------------------------------------------------------------------------------------------------------| | 7| HEATER SECTION: | - | 8"radiant | 6"radiant | 6"shock | 5"convect.| | | | | | 8| SERVICE: | - | vaporizing| vaporizing| vaporizing| vaporizing| | | | | | 9| DESIGN BASIS: CODE/SPEC. | - | | | | | | | | | |10| RUPTURE STRENGTH MIN/AVG. | - | | | | | | | | | |11| STRESS-TO-RUPTURE, HR. | h | | | | | | | | | |12| DESIGN PRESSURE ELAST/RUPT. | - | | | | | | | | | |13| MAX. TUBE METAL TEMP. CALC. | - | 377.2 | 360.2 | 365.0 | 342.4 | | | | | |14| DESIGN TUBE METAL TEMP. | deg C | | | | | | | | | |15| TEMPERATURE ALLOWANCE | deg C | | | | | | | | | |16| CORROSION ALLOWANCE | mm | | | | | | | | | |17| HYDROSTATIC TEST PRESSURE | MPa(g) | | | | | | | | | |18| POSTWELD HEAT TREATMENT | yes/no | | | | | | | | | |19| % OF WELLDS RADIOGRAPHED | % | | | | | | | | | |20| INSIDE HEAT TRANSFER COEFF. | W/m2K | | | | | | | | | |----------------------------------------------------------------------------------------------------------------------------------| |21| COIL ARRANGEMENT: | |----------------------------------------------------------------------------------------------------------------------------------| |22| TUBE ORIENTATION HOR/VER | - | vertical | vertical | horizontal| horizontal| | | | | |23| TUBE MAT. ASTM SPEC.& GRADE | - | | | | | | | | | |24| TUBE OD | mm | 219.08 | 168.27 | 168.27 | 141.29 | | | | | |25| TUBE WALL THICKNESS | mm | 8.18 | 7.11 | 7.11 | 6.55 | | | | | |26| NUMBER OF FLOW PASSES | - | 8 | 8 | 8 | 8 | | | | | |27| NUMBER OF TUBES PER ROW | - | 32 | 16 | 8 | 8 | | | | | |28| NUMBER OF TUBE ROWS | - | 1 | 1 | 3 | 5 | | | | | |29| STRAIGHT TUBE LENGTH | m | 13.374 | 13.527 | - | - | | | | | |30| EXPOSED TUBE LENGTH | m | 14.012 | 14.005 | 6.24 | 6.24 | | | | | |31| BARE TUBE NUMBER | - | 32 | 16 | 24 | - | | | | | |32| TOTAL EXPOSED AREA | m2 | 308.6 | 118.5 | 79.2 | - | | | | | |33| EXTENDED SURFACE TUBES: NR | - | - | - | - | 40 | | | | | |34| TOTAL EXPOSED AREA | m2 | - | - | - | 1198.8 | | | | | |35| TUBE LAYOUT IN LINE/STAGG | - | WALLTUBE | WALLTUBE | STAGG | STAGG | | | | | |36| CO-CURRENT/COUNTER-CURRENT | | --- | --- | COUNTER | COUNTER | | | | | |37| TUBE SPACING HORIZONTAL | mm | 406.4 | 304.8 | 254.0 | 254.0 | | | | | |38| TUBE SPACING VERTICAL | mm | - | - | 277.1 | 220.0 | | | | | |39| TUBE SPACING DIAGONAL | mm | - | - | 304.8 | 254.0 | | | | | |40| SPACING TUBE CENT. TO REFR. | mm | 304.8 | 304.8 | 133.4 | 133.4 | | | | | |41| CORBELS (YES/NO) | - | NO | NO | NO | YES | | | | | |42| CORBEL HEIGHT | mm | | | | 114.0 | | | | | |----------------------------------------------------------------------------------------------------------------------------------| |43 DESCRIPTION OF EXTENDED SURFACE: | |----------------------------------------------------------------------------------------------------------------------------------| |44| TYPE: (STUDS/SOLFIN/SERRFIN)| | none | none | none | serrated | | | | 1 | |45| MATERIAL | - | | | | CS | | | | | |46| HEIGHT | mm | | | | 25.4 | | | | | |47| THICKNESS | mm | | | | 1.5 | | | | | |48| SPACING (FINS/M, STUDS/PL) | 1/m | | | | 157 | | | | | |49| MAX TIP TEMPERATURE CALC. | deg C | | | | 416 | | | | | |50| EXTENSION RATIO | - | | | | 10.82 | | | | | |----------------------------------------------------------------------------------------------------------------------------------| |51| RETURN BENDS: | |----------------------------------------------------------------------------------------------------------------------------------| |52| TYPE | | R=ND | R=ND | R=ND | R=ND | | | | | |53| MATERIAL ASTM SPEC.& GRADE | | | | | | | | | | |54| NOMINAL RATING | | | | | | | | | | |55| LOCATION | | radiant | radiant | headerbox | headerbox | | | | | |----------------------------------------------------------------------------------------------------------------------------------| |56| NOTES: For thermal calculations, a metal conductivity of 45 [W/m/K] was used throughout | |57| Inside convection width is 2.172 m throughout. Setting 125 mm. | |58| Radiant TCD = 8 * ( 4 * 16" + 2 * 12") / pi = 8 * 88" / pi = 5.69 meter | |59| Inner radiant refractory diameter is TCD + 2 * 1.5 * 8" = 6.30 meter | |60| Radiant casing ID ,using 175 mm refractory = 6.651 meter, Radiant internal height 14.5 m | |----------------------------------------------------------------------------------------------------------------------------------| | | | | F I R E D H E A T E R D A T A S H E E T | S I U N I T S | | | | |--------------------------------------------------------------------------+----------------+---------------------+----------------| | API STD - 560 | REV: 1 | DATE: 2004-10-19 | SHEET 3 OF 6 | +----------------------------------------------------------------------------------------------------------------------------------+