Fired Heater Simulation Results

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Simulation Results

Technical Summary

HeaterSIM - Fired Heater Simulation Results

Online API Fired Heater Software

ENERGY PERFORMACE
Total Absorbed DutyMW59.993
Total Heat ReleaseMW68.701
Total Efficiency%87.324
PROCESS
Process Name Crude Oil 1
Heat DutyMW59.993
Flow rate (sec)kg/s200
INLET CONDITIONS
Inlet Temperature°C100
Inlet PressurekPa a750.1
OUTLET CONDITIONS
Outlet Temperature°C484.6
Outlet PressurekPa a-58043.828
AIR
Air Flowkg/s14.02514.342
Air Temp.°C15.515.5
Excess Air%2020
FUEL
Fuel Flowkg/s0.6790.694
Fuel LHVkJ/kg5001550015
Fuel Mol. Wt. 1616
STACK
Flue Gas Flowkg/s29.74
Flue Gas Temp.°C233
CO2mol%8.06
H2Omol%16.06
N2mol%72.67
O2 mol%3.21
SO2mol%0
CONVECTION
Convection Sect. No. 1
Heat DutyMW21.024
Flue Gas Flowkg/s29.74
Max Tube Temp.°C251
Total Press. Loss (inc. gain)mmH2O-0.96
RADIANT SECTION
Radiant Cell 12
Heat DutyMW19.48419.484
Heat ReleaseMW33.96734.734
Arch Temp.°C785.1785.1
Max Tube Temp.°C496.1496.1
Average FluxW/m²3429234292
Maximum FluxW/m²5738857694
No. of Burners 88
Arch PressuremmH2O-2.582-2.582
Floor PressuremmH2O-17.497-17.497
Carbon Emissions
ENVIRONMENTAL IMPACT
Energy Efficiency%87.324
Daily CO2 Emissionskg327586
Commercial

BID / PROJECT VALUE

Total: £ 1,781,252

SAFETY AND COMPLIANCE

Radiant cell no. 1: The burners to tube distance seems OK (API 560)
Radiant cell no. 2: The burners to tube distance seems OK (API 560)
Radiant cell no. 1: The burners to wall clearance seems OK (API 560)
Radiant cell no. 2: The burners to wall clearance seems OK (API 560)
Radiant cell no. 1: Burner Vertical Clearance seems OK (API 560)
Radiant cell no. 2: Burner Vertical Clearance seems OK (API 560)
Flame-tube impingment risk not identified
Radiant cell no. 1: API 560 Radiant height to width seems OK
Radiant cell no. 2: API 560 Radiant height to width seems OK
Radiant cell no. 1: Single lane of burners considered
Radiant cell no. 2: Single lane of burners considered
Stack No. 1: Auto Stack calc. has converged OK
Radiant section 1,Coil sect. no. 1, complies with API 530#Radiant section 2,Coil sect. no. 1, complies with API 530
Convection section 1,Coil sect. no. 1, complies with API 530
Convection section 1,Coil sect. no. 2, complies with API 530
Convection section 1,Coil sect. no. 3, complies with API 530
COIL ARRANGEMENT
Heater Section RADIANT 1RADIANT 2CONVECTION 1CONVECTION 1CONVECTION 1
Orientation VerticalVerticalHorizontalHorizontalHorizontal
Tube OD mm 141.3141.3141.3141.3141.3
Tube Material Carbon SteelCarbon SteelCarbon SteelCarbon SteelCarbon Steel
Tube Wall Thk mm Sch 40Sch 40Sch 40Sch 40Sch 40
Max Tube Temperature°C496.1496.1238.3251195.8
No. Tubes 8080362436
Effective Length m 1616151515
Straight Length m 15.515.515.415.415.4

Commercial

HeaterSIM - Fired Heater Simulation Results

Online API Fired Heater Software

Materials & Equipment Supply

Steelwork & Fabrication
Painting, Refractory & Anchors
Ladders & Platforms, Tubes & Fittings
Finning, Tube Supports
Coil Fabrication (inc. Radiography)
BMS, Instrumentation & Fuel Skid
Burners

Detail Engineering

Process & Thermal Design, Mechanical Design
Piping Stress Analysis, Stuctural Design
3D Modelling, Detailed Design Drawings
Fabrication, Shipping & Transport Drawings

Shipping & Delivery

1. Radiant Section - fully modulurised
2. Convection Section - fully modulurised
3. Stack - fully modulurised sections
4. Fuel Skid - fully modulurised

Terms

1. Delivery: 54 weeks (28 weeks Detailed Eng. only)
2. Validity: 14 days
3. Warranty: 3 years

Our Partners & Vendors

Burner Vendors:
Callidus (UOP)
Greens Combustion
ICE
John Zink Hamworthy
Zeeco

Fabricators:
Vatana Phisal (VPE)
Vipco
Steelcon Malaysia
AD Demirel
Polimex

Refractory:
Morgan
Linco Baxo
Insulcon B.V.
Zibo Luzhong

Summary
Main items
Material & Equipment Supply £ 1,469,350
Option items
Detail Engineering (by HeaterSIM) £ 220,402
Performance Guarantee £35000
Third Party Design Check £29500
Burner Performance Test £27000
Total £1,781,252

1. Fuel Temperature as per project specifications. This value is not reported here.
2. Fuel Pressure typically ~2 barg (29 psig) at maximum burner heat release. This value is not reported here.

Process Flow Diagram (PFD) Summary

HeaterSIM - Fired Heater Simulation Results

Online API Fired Heater Software

STREAM NO. 123345566
Fluid Name Crude Oil 1Crude Oil 1Radiant 1 Flue GasRadiant 2 Flue GasStack 1 Flue GasFuel No. 1Fuel No. 1Combustion AirCombustion Air
Flow (sec)kg/s 20020014.70415.03629.740.6790.69414.02514.342
Flow (hr)kg/hr 7200007200005293554130107066244525005049051630
Temperature°C 100484.6785.1785.1233Note 1Note 115.515.5
PressurekPa a 750.1-58043.828-2.582-2.582-1.597Note 2Note 2101.32101.32

1. Fuel Temperature as per project specifications. This value is not reported here.
2. Fuel Pressure typically ~2 barg (29 psig) at maximum burner heat release. This value is not reported here.

P&ID

HeaterSIM - Fired Heater Simulation Results

Online API Fired Heater Software

Process Conditions

HeaterSIM - Fired Heater Simulation Results

Online API Fired Heater Software

Process Name Crude Oil 1
Heat DutyMW59.993
Flow rate (sec)kg/s200
Flow rate (hr)kg/hr720000
Pressure dropkPa58793.93
Max. Film Temp. Calculated°C488.2
Max. Film Temp. Allowed°C350
Max Tube Average Flux Calculated (1)W/m²38153
Average Flux AllowedW/m²31500
INLET CONDITIONS
Inlet Temperature°C100
Inlet PressurekPa a750.1
Inlet Vapour Fraction 0
Inlet EnthalpykJ/kg135
OUTLET CONDITIONS
Outlet Temperature°C484.6
Outlet PressurekPa a-58043.828
Outlet Vapour Fraction 1
Outlet EnthalpykJ/kg435
Crude Oil 1: Calculated outlet pressure is excessively below atmospheric pressure
If the specified or calculated fluid temperature(s) and pressure(s) are outside of the defined property grid the program will use extrapolation. Significant extrapolation may introduce inaccuracies.

1) The max flux calculated on a individual tube basis (see tube profile results data).

API 560 Fired Heater, API 560 Fired Heater P&ID, API 560 Fired Heater Control and Instrumentation, API 560 Fired Heater Instruments, API 560 Fired Heater Piping and Instrumentation Diagram

Radiant Section

HeaterSIM - Fired Heater Simulation Results

Online API Fired Heater Software

API 560 Fired Heater, VC Fired Heater, API VC Fired Heater
Radiant Cell 12
Radiant Type
Heat DutyMW19.48419.484
Heat ReleaseMW33.96734.734
Arch Temp.°C785.1785.1
Max Tube Temp.°C496.1496.1
Tube Cirle Diameter m N/AN/A
Average FluxW/m²3429234292
Maximum FluxW/m²5738857694
Flue Flowkg/s14.70415.036
Air Flowkg/s14.02514.342
Fuel Flowkg/s0.6790.694
Excess Air%2020
Air Temp.°C15.515.5
Arch PressuremmH2O-2.582-2.582
Floor PressuremmH2O-17.497-17.497
Radiant Height m 1717
Radiant Width m 7.087.08
Radiant Length m 10.5410.54
No. of Burners 88
Burner Cirle Diameter m N/AN/A
Burner Design FiringMW4.674.78
Burner Normal FiringMW4.254.34
Burner Min FiringMW0.930.96
Burner-to-Tube Note OKOK
Burner-to-Wall Note OKOK
Burner-to-Roof Note OKOK
API Burner-to-Tube Dist. m 1.6681.71
API Burner-to-Wall Dist. m 1.5271.555
API Burner-to-Roof/Roof Dist m 11.05711.271
Floor FluxW/m²454989465258
Flame-tube impingment risk not identified

Firing Notes
1. The Lower Heating Value (LHV) of the fuel efficiencies shall be used for efficiency calculations
2. Typical radiation heat loss value of 1.5% is used typically considered. However, in cases with a flue gas/air preheater, a value of 2.5% is normally considered.
3. Typical Excess Air values can be used as follows:
- Natural Draft - 15% excess air
- Forced Draft - 10% excess air
4. API 560 - Pressure at the Arch should be maintained at -2.5mmH2Og (-0.1inH2Og)

Tube Support Notes
1. Design temp. for tube supports should be Arch temp + 100 C (180 F) 2. No credit should be considered for shielding effect of tube supports by refractory 3. API 560 states if fuel the Vanadium + Sodium content in fuel exceeds 100ppm, supports to be either: - 50Cr-50Ni metallurgy, without any coating
- Covered with 50 mm (2 in) of castable refractory (see API 560)

Combustion

HeaterSIM - Fired Heater Simulation Results

Online API Fired Heater Software

Radiant Type
Flue Flowkg/s14.70415.036
Air Flowkg/s14.02514.342
Fuel Flowkg/s0.6790.694
Fuel LHVkJ/kg5001550015
Excess Air%2020
Air Temp.°C15.515.5
CO2mol%8.068.06
H2Omol%16.0616.06
N2mol%72.6772.67
O2 mol%3.213.21
SO2mol%00
Dew Point°C5656
Fuel Mol. Wt. 1616
Flue Mol. Wt. 27.81227.812
Flame Temperature°C1805.61805.6
Flue Gas Emissivity 0.580.58
Process Burner, Combustion Burner, Burner Flame, Industrial Burner

Notes
1. One UV scanner per burner is recommended (if total no. burners < 20)
2. One Pilot per burner is recommended
3. Electric spark ignition is recommended for each pilot
4. Forced draft system

Notes
1. The Lower Heating Value (LHV) of the fuel efficiencies shall be used for efficiency calculations
2. Typical radiation heat loss value of 1.5% is used typically considered. However, in cases with a flue gas/air preheater, a value of 2.5% is normally considered.
3. Typical Excess Air values can be used as follows:
- Natural Draft - 15% excess air
- Forced Draft - 10% excess air
4. API 560 - Pressure at the Arch should be maintained at -2.5mmH2Og (-0.1inH2Og)

Convection Section

HeaterSIM - Fired Heater Simulation Results

Online API Fired Heater Software

API 560 Fired Heater Process Flow, Fired Heater process coil, Fired Heater process design, furnace process layout, radiant and convection section process scheme
Convection Sect. No. 1
Heat DutyMW21.024
Max Tube Temp.°C251
Total Flue Press. Loss (ex. gain)mmH2O1.8
Total Press. GainmmH2O2.76
Total Press. Loss (inc. gain)mmH2O-0.96
Convection Width m 3.175
Effective Length m 15
Convection Height m 3.601
Total No. Rows 8
FLUE GAS DATA
Flue Gas Flowkg/s29.74
Flue Gas Inlet Temp.°C784.6
Flue Gas Outlet Temp.°C233
CO2mol%8.058337
H2Omol%16.05639
N2mol%72.674
O2 mol%3.211277
SO2mol%0

Convection (Flue gas side)

HeaterSIM - Fired Heater Simulation Results

Online API Fired Heater Software

ConboxRowDutyTemp InletTemp OutletEnthalpy InEnthalpy OutFlue DensityFin TypeAvg FluxMax FluxTubes per RowFG Mass Vel.Flue P dropTube MaterialFin MaterialAvg Fin TempMax Fin Temp
MW°C°CkJ/kgkJ/kgkg/m³ W/m²W/m² kg/s m²mmH2Og °C°C
181.79284.9233303.1242.80.64Solid2243926782121.6530.234C.S.C.S.164.9183.5
172.28350284.9379.7303.10.58Solid2853833985121.6530.263C.S.C.S.192.2211.4
163.27441.9350489.7379.70.51Solid4095848616121.6530.298C.S.C.S.225.7252.4
153.47535.9441.9606.3489.70.45Solid4338752262121.5720.242C.S.C.S.243.5275.4
144.91666.7535.9771.6606.30.39Solid6153875791121.5720.278C.S.C.S.294.1336.1
131.43700.9666.7816.5771.60.35None1897033137121.4660.156C.S.None00
121.69738.8700.9865.6816.50.34None2391741778121.4660.162C.S.None00
112.19784.6738.8919.6865.60.33None3476860732121.4660.169C.S.None00

Convection (Process Side)

HeaterSIM - Fired Heater Simulation Results

Online API Fired Heater Software

Process Inlet
Conv. BoxRowDutyFlue Temp. INFlue Temp. OUTProcessFlowBulk Temp. InBulk Temp. OutBulk Press. InBulk Press. OutVap. Fraction InVap. Fraction OutInlet VelocityInlet Crit.Vel.Outlet Crit.Vel.Inlet M Vel.Outlet M Vel.Inlet Reynolds No.Inlet Reynolds No.
MW°C°C °C°CkPa akPa a m/sm/sm/skg/s m²kg/s m²
181.79284.9233 Crude Oil 11100137.7750666005.20038743874636645649577
172.28350284.9 Crude Oil 12137.7147.4666581005.20038743874649575655234
163.27441.9350 Crude Oil 13147.4161.5581496005.20038743874655235663519
153.47535.9441.9 Crude Oil 14161.5176.3496411005.30038743874663509677412
144.91666.7535.9 Crude Oil 15176.3197.441126700.045.304238743874677397719620
131.43700.9666.7 Crude Oil 16197.3206.7267-8000.040.432642NaN3874387471959649658332
121.69738.8700.9 Crude Oil 17206.7215.6-800-40610.431335.1NaNNaN387438744965833249658332
112.19784.6738.8 Crude Oil 18215.6227.2-4054-1561911774.7NaNNaN387438744965833249658332
Process Outlet
Conv. BoxRowCoil SectionDutyFlue Temp. INVap. Fraction OutInlet VelocityOutlet VelocityInlet Crit.Vel.Outlet Crit.Vel.Inlet M Vel.Outlet M Vel.Inlet Reynolds No.Inlet Reynolds No.
MW°C m/sm/sm/sm/skg/s m²kg/s m²
18Coil Section 31.79284.905.25.20038743874636645649577
17Coil Section 32.2835005.25.20038743874649575655234
16Coil Section 33.27441.905.25.30038743874655235663519
15Coil Section 23.47535.905.35.30038743874663509677412
14Coil Section 24.91666.70.045.32604238743874677397719620
13Coil Section 11.43700.90.432633542NaN3874387471959649658332
12Coil Section 11.69738.81335.1774.7NaNNaN387438744965833249658332
11Coil Section 12.19784.61774.7618.2NaNNaN387438744965833249658332

Radiant Tube Profile

HeaterSIM - Fired Heater Simulation Results

Online API Fired Heater Software

Process fluid side
Tube No.Loc.ProcessBulk Temp In.Bulk Temp Out.Bulk Press In.Bulk Press. OutEnth. InEnth. OutVapour OutTube ODVelocity OutFilm TempAvg Tube Temp.Max Tube Temp.API Design Temp.Avg HTCFlow RegimeAvg FluxMax Flux
°C°CkPa akPa akJ/kgkJ/kg m/s°C°C°C°CW/m² °C W/m²W/m²
1WallCrude Oil 1227.2232.4-15618.8-18789.9240.1244.91141.3542237.7239.8247.1262.113116.5Turbulent3815363038
2WallCrude Oil 1232.4237.6-18789.9-21596.8244.9249.81141.3483.8242.8244.9252.2267.213209.9Turbulent3800762836
3WallCrude Oil 1237.6242.8-21596.8-24120.1249.8254.71141.3437.7247.9250257.3272.313301.2Turbulent3786062632
4WallCrude Oil 1242.8247.9-24120.1-26416.4254.7259.51141.3400.4253.1255.2262.4277.413390.5Turbulent3771262424
5WallCrude Oil 1247.9253.1-26416.4-28524.6259.5264.41141.3367.4258.2260.3267.5282.513478.9Turbulent3756162212
6WallCrude Oil 1253.1258.3-28524.6-30459.9264.4269.31141.3338.7263.3265.4272.6287.613574.5Turbulent3740961997
7WallCrude Oil 1258.3263.4-30459.9-32251.2269.3274.21141.3314.6268.4270.5277.7292.713668.1Turbulent3725461778
8WallCrude Oil 1263.4268.6-32251.2-33920.7274.22791141.3294.1273.6275.6282.9297.913759.7Turbulent3709861555
9WallCrude Oil 1268.6273.8-33920.7-35485.8279283.91141.3276.5278.7280.728830313849.6Turbulent3694061329
10WallCrude Oil 1273.8279-35485.8-36960.5283.9288.81141.3261.1283.8285.8293.1308.113937.7Turbulent3678061099
11WallCrude Oil 1279285.4-36960.5-38343.3288.8293.61141.3242.9290.2291.6299.5314.514005.9Turbulent3659760816
12WallCrude Oil 1285.4292.2-38343.3-39630.5293.6298.51141.3226.5297298.2306.2321.214050.5Turbulent3638560502
13WallCrude Oil 1292.2299-39630.5-40834.5298.5303.41141.3212.5303.7304.9312.9327.914097.1Turbulent3616360179
14WallCrude Oil 1299305.8-40834.5-41967303.4308.31141.3200.3310.5311.7319.7334.714142.7Turbulent3593959848
15WallCrude Oil 1305.8312.6-41967-43037.2308.3313.11141.3189.4317.2318.4326.4341.414187.2Turbulent3571059511
16WallCrude Oil 1312.6319.4-43037.2-44048.2313.13181141.3179.2324325.2333.1348.114234.1Turbulent3547859165
17WallCrude Oil 1319.4326.2-44048.2-45006.8318322.91141.3170.2330.8331.9339.9354.914280.4Turbulent3524158812
18WallCrude Oil 1326.2333-45006.8-45919322.9327.71141.3162.2337.5338.6346.6361.614325.7Turbulent3500058451
19WallCrude Oil 1333339.8-45919-46789.9327.7332.61141.3155.1344.3345.4353.3368.314370.2Turbulent3475558082
20WallCrude Oil 1339.8346.7-46789.9-47612.6332.6337.51141.3144.8351.1352.2360.1375.114409.6Turbulent3450457699
21WallCrude Oil 1346.7353.6-47612.6-48382.1337.5342.41141.3135.8358359366.9381.914445Turbulent3424757308
22WallCrude Oil 1353.6360.5-48382.1-49105.7342.4347.21141.3128364.8365.8373.8388.814479.7Turbulent3398556907
23WallCrude Oil 1360.5367.4-49105.7-49789.3347.2352.11141.3121.2371.7372.7380.6395.614513.7Turbulent3371856497
24WallCrude Oil 1367.4374.3-49789.3-50437.7352.13571141.3115.1378.5379.5387.4402.414547.1Turbulent3344756078
25WallCrude Oil 1374.3381.2-50437.7-51054.9357361.81141.3109.8385.4386.4394.2409.214579.9Turbulent3317055650
26WallCrude Oil 1381.2388.1-51054.9-51644.4361.8366.71141.3105392.3393.240141614612.1Turbulent3288955212
27WallCrude Oil 1388.1395-51644.4-52208.8366.7371.61141.3100.7399.1400407.8422.814643.7Turbulent3260254764
28WallCrude Oil 1395401.9-52208.8-52750.7371.6376.51141.396.8406406.8414.6429.614674.7Turbulent3231054307
29WallCrude Oil 1401.9408.8-52750.7-53272376.5381.31141.393.2412.8413.7421.4436.414705.2Turbulent3201353839
30WallCrude Oil 1408.8415.7-53272-53774.7381.3386.21141.389.9419.7420.5428.2443.214735.2Turbulent3171153361
31WallCrude Oil 1415.7422.6-53774.7-54260.3386.2391.11141.387426.5427.343545014764.7Turbulent3140352872
32WallCrude Oil 1422.6429.5-54260.3-54730.1391.1395.91141.384.2433.4434.2441.8456.814793.8Turbulent3108952373
33WallCrude Oil 1429.5436.4-54730.1-55185.4395.9400.81141.381.7440.2441448.6463.614822.3Turbulent3077051862
34WallCrude Oil 1436.4443.3-55185.4-55627.3400.8405.71141.379.3447.1447.8455.4470.414850.4Turbulent3044551341
35WallCrude Oil 1443.3450.2-55627.3-56056.7405.7410.61141.377.1453.9454.6462.2477.214878.1Turbulent3011350808
36WallCrude Oil 1450.2457.1-56056.7-56474.5410.6415.41141.375.1460.8461.446948414905.3Turbulent2977650264
37WallCrude Oil 1457.1464-56474.5-56881.4415.4420.31141.373.2467.6468.2475.8490.814932.2Turbulent2943349708
38WallCrude Oil 1464470.9-56881.4-57278.2420.3425.21141.371.4474.5475.1482.5497.514958.6Turbulent2908349141
39WallCrude Oil 1470.9477.8-57278.2-57665.5425.24301141.369.7481.3481.9489.3504.314984.7Turbulent2872748561
40WallCrude Oil 1477.8484.6-57665.5-58043.8430434.91141.368.1488.2488.7496.1511.115010.3Turbulent2836547969
1WallCrude Oil 1227.2232.4-15618.8-18789.9240.1244.91141.3542237.7239.8247.1262.113116.5Turbulent3815363038
2WallCrude Oil 1232.4237.6-18789.9-21596.8244.9249.81141.3483.8242.8244.9252.2267.213209.9Turbulent3800762836
3WallCrude Oil 1237.6242.8-21596.8-24120.1249.8254.71141.3437.7247.9250257.3272.313301.2Turbulent3786062632
4WallCrude Oil 1242.8247.9-24120.1-26416.4254.7259.51141.3400.4253.1255.2262.4277.413390.5Turbulent3771262424
5WallCrude Oil 1247.9253.1-26416.4-28524.6259.5264.41141.3367.4258.2260.3267.5282.513478.9Turbulent3756162212
6WallCrude Oil 1253.1258.3-28524.6-30459.9264.4269.31141.3338.7263.3265.4272.6287.613574.5Turbulent3740961997
7WallCrude Oil 1258.3263.4-30459.9-32251.2269.3274.21141.3314.6268.4270.5277.7292.713668.1Turbulent3725461778
8WallCrude Oil 1263.4268.6-32251.2-33920.7274.22791141.3294.1273.6275.6282.9297.913759.7Turbulent3709861555
9WallCrude Oil 1268.6273.8-33920.7-35485.8279283.91141.3276.5278.7280.728830313849.6Turbulent3694061329
10WallCrude Oil 1273.8279-35485.8-36960.5283.9288.81141.3261.1283.8285.8293.1308.113937.7Turbulent3678061099
11WallCrude Oil 1279285.4-36960.5-38343.3288.8293.61141.3242.9290.2291.6299.5314.514005.9Turbulent3659760816
12WallCrude Oil 1285.4292.2-38343.3-39630.5293.6298.51141.3226.5297298.2306.2321.214050.5Turbulent3638560502
13WallCrude Oil 1292.2299-39630.5-40834.5298.5303.41141.3212.5303.7304.9312.9327.914097.1Turbulent3616360179
14WallCrude Oil 1299305.8-40834.5-41967303.4308.31141.3200.3310.5311.7319.7334.714142.7Turbulent3593959848
15WallCrude Oil 1305.8312.6-41967-43037.2308.3313.11141.3189.4317.2318.4326.4341.414187.2Turbulent3571059511
16WallCrude Oil 1312.6319.4-43037.2-44048.2313.13181141.3179.2324325.2333.1348.114234.1Turbulent3547859165
17WallCrude Oil 1319.4326.2-44048.2-45006.8318322.91141.3170.2330.8331.9339.9354.914280.4Turbulent3524158812
18WallCrude Oil 1326.2333-45006.8-45919322.9327.71141.3162.2337.5338.6346.6361.614325.7Turbulent3500058451
19WallCrude Oil 1333339.8-45919-46789.9327.7332.61141.3155.1344.3345.4353.3368.314370.2Turbulent3475558082
20WallCrude Oil 1339.8346.7-46789.9-47612.6332.6337.51141.3144.8351.1352.2360.1375.114409.6Turbulent3450457699
21WallCrude Oil 1346.7353.6-47612.6-48382.1337.5342.41141.3135.8358359366.9381.914445Turbulent3424757308
22WallCrude Oil 1353.6360.5-48382.1-49105.7342.4347.21141.3128364.8365.8373.8388.814479.7Turbulent3398556907
23WallCrude Oil 1360.5367.4-49105.7-49789.3347.2352.11141.3121.2371.7372.7380.6395.614513.7Turbulent3371856497
24WallCrude Oil 1367.4374.3-49789.3-50437.7352.13571141.3115.1378.5379.5387.4402.414547.1Turbulent3344756078
25WallCrude Oil 1374.3381.2-50437.7-51054.9357361.81141.3109.8385.4386.4394.2409.214579.9Turbulent3317055650
26WallCrude Oil 1381.2388.1-51054.9-51644.4361.8366.71141.3105392.3393.240141614612.1Turbulent3288955212
27WallCrude Oil 1388.1395-51644.4-52208.8366.7371.61141.3100.7399.1400407.8422.814643.7Turbulent3260254764
28WallCrude Oil 1395401.9-52208.8-52750.7371.6376.51141.396.8406406.8414.6429.614674.7Turbulent3231054307
29WallCrude Oil 1401.9408.8-52750.7-53272376.5381.31141.393.2412.8413.7421.4436.414705.2Turbulent3201353839
30WallCrude Oil 1408.8415.7-53272-53774.7381.3386.21141.389.9419.7420.5428.2443.214735.2Turbulent3171153361
31WallCrude Oil 1415.7422.6-53774.7-54260.3386.2391.11141.387426.5427.343545014764.7Turbulent3140352872
32WallCrude Oil 1422.6429.5-54260.3-54730.1391.1395.91141.384.2433.4434.2441.8456.814793.8Turbulent3108952373
33WallCrude Oil 1429.5436.4-54730.1-55185.4395.9400.81141.381.7440.2441448.6463.614822.3Turbulent3077051862
34WallCrude Oil 1436.4443.3-55185.4-55627.3400.8405.71141.379.3447.1447.8455.4470.414850.4Turbulent3044551341
35WallCrude Oil 1443.3450.2-55627.3-56056.7405.7410.61141.377.1453.9454.6462.2477.214878.1Turbulent3011350808
36WallCrude Oil 1450.2457.1-56056.7-56474.5410.6415.41141.375.1460.8461.446948414905.3Turbulent2977650264
37WallCrude Oil 1457.1464-56474.5-56881.4415.4420.31141.373.2467.6468.2475.8490.814932.2Turbulent2943349708
38WallCrude Oil 1464470.9-56881.4-57278.2420.3425.21141.371.4474.5475.1482.5497.514958.6Turbulent2908349141
39WallCrude Oil 1470.9477.8-57278.2-57665.5425.24301141.369.7481.3481.9489.3504.314984.7Turbulent2872748561
40WallCrude Oil 1477.8484.6-57665.5-58043.8430434.91141.368.1488.2488.7496.1511.115010.3Turbulent2836547969
Tube side
Flame-tube impingment risk not identified

Convection Tube Profile

HeaterSIM - Fired Heater Simulation Results

Online API Fired Heater Software

Process fluid side
Conv. BoxTube No.Coil Sect.RowProcessBulk Temp. InBulk Temp. OutPress. InPress. OutEnth. InEnth. OutVapour FractionTube ODVelocityFilmAvg Tube Temp.Max Tube Temp.API Design Temp.Avg HTCFin TypeFlow RegimeTube Mat.Avg FluxMax Flux
°C°CkPa akPa akJ/kgkJ/kg m/s°C°C°C°CW/m² °C W/m²W/m²
1138Crude Oil 1100112.6750.17221351380141.35.2128.9125133.7148.72265.8SolidTurbulentC.S.2410433541
1238Crude Oil 1112.6125.1722693.81381410141.35.2140135.9144.4159.42274.6SolidTurbulentC.S.2205630692
1338Crude Oil 1125.1137.7693.8665.71411440141.35.2151.1146.8155.1170.12284SolidTurbulentC.S.2000227833
1437Crude Oil 1137.7140.9665.7637.4144147.80141.35.2160.2161.5166.1181.12295.5SolidTurbulentC.S.2895340228
1537Crude Oil 1140.9144.2637.4609.2147.8151.60141.35.2163.1164.3168.8183.82300.4SolidTurbulentC.S.2841039474
1637Crude Oil 1144.2147.4609.2581151.6155.40141.35.2166167.1171.6186.62305.2SolidTurbulentC.S.2786738720
1736Crude Oil 1147.4152.1581552.7155.4160.80141.35.3179.6181.41882032315.4SolidTurbulentC.S.4157257640
1836Crude Oil 1152.1156.8552.7524.4160.8166.30141.35.3183.6185.4191.9206.92321.9SolidTurbulentC.S.4076256516
1936Crude Oil 1156.8161.5524.4496.1166.3171.70141.35.3187.7189.4195.8210.82328.3SolidTurbulentC.S.3995155392
11025Crude Oil 1161.5166.4496.1467.7171.7177.50141.35.3195.4197.4204.4219.42336.7SolidTurbulentC.S.4394161474
11125Crude Oil 1166.4171.4467.7439.4177.5183.20141.35.3199.8201.8208.7223.72344.9SolidTurbulentC.S.4326160523
11225Crude Oil 1171.4176.3439.4411183.21890141.35.3204.2206.12132282352.8SolidTurbulentC.S.4258159572
11324Crude Oil 1176.3183.3411382.6189197.20141.35.3224.6227.7237.8252.82363SolidTurbulentC.S.6238588556
11424Crude Oil 1183.3190.3382.6354.2197.2205.40141.35.3230.7233.7243.7258.72374.7SolidTurbulentC.S.6132787053
11524Crude Oil 1190.3197.4354.2266.8205.4213.60.0422141.326238.3241.12512662305.3SolidBubbleC.S.6026885551
11613Crude Oil 1197.3200.4266.875213.6215.90.139141.3112.3216.1216.9220.7235.72205.6NoneBubbleC.S.1794731349
11713Crude Oil 1200.4203.675-444.4215.9218.30.305141.3239.9218.9219.7223.5238.52233.6NoneMistC.S.1783931160
11813Crude Oil 1203.6206.7-444.4-799.7218.3220.70.4286141.3335213.4214.22182335032.5NoneMistC.S.1773130972
11912Crude Oil 1206.7209.6-800.1-1386.2220.7223.50.629141.3489.2215.8217.1221.3236.36598.8NoneMistC.S.2120237036
12012Crude Oil 1209.6212.6-1386.2-2350.6223.5226.30.9552141.3740.3217.2218.4222.6237.68968.8NoneMistC.S.2109536848
12112Crude Oil 1212.6215.6-2350.6-4060.9226.3229.11141.3774.7218.8220.1224.3239.312532.8NoneAnnular & MistC.S.2098836661
12211Crude Oil 1215.6219.5-4053.8-8191.2229.1232.81141.3774.7223.6225.2230.7245.712957.8NoneTurbulentC.S.2758148178
12311Crude Oil 1219.5223.4-8191.2-12130.6232.8236.41141.3692.6227.4229234.5249.512985.4NoneTurbulentC.S.2743747926
12411Crude Oil 1223.4227.2-12130.6-15618.8236.4240.11141.3618.2231.3232.9238.3253.313058.4NoneTurbulentC.S.2729247673
Tube side

Coil Configuration

HeaterSIM - Fired Heater Simulation Results

Online API Fired Heater Software

Heater Section RADIANT 1RADIANT 2CONVECTION 1CONVECTION 1CONVECTION 1
Coil Section Coil Section 1Coil Section 1Coil Section 1Coil Section 2Coil Section 3
Process Name Process 1: Crude Oil 1Process 1: Crude Oil 1Process 1: Crude Oil 1Process 1: Crude Oil 1Process 1: Crude Oil 1
Tube OD mm 141.3141.3141.3141.3141.3
Tube Material Carbon SteelCarbon SteelCarbon SteelCarbon SteelCarbon Steel
Tube Wall Thk mm Sch 40Sch 40Sch 40Sch 40Sch 40
Max Tube Temperature°C496.1496.1238.3251195.8
Tube Temperature Margin°C1515151515
Design Tube Temperature°C511.1511.1253.3266210.8
Design Tube PressurekPa2000.22000.2 2000.22000.2
Design Code API 530API 530 API 530API 530
Tube Thk. Comment Tube Thk. OK (API 530)Tube Thk. OK (API 530)Tube Thk. OK (API 530)Tube Thk. OK (API 530)Tube Thk. OK (API 530)
No. Tubes 8080362436
No. Tubes Per Row 121212
No. Passes 22444
Effective Length m 1616151515
Straight Length m 15.515.515.415.415.4
No. Rows 323
Tube Spacing mm 254254254254254
Vert. Row Spacing (Vert) mm N/AN/A220.1220.1220.1
Coil Alignment StaggeredStaggeredStaggered
Orientation VerticalVerticalHorizontalHorizontalHorizontal
Tube Area568.2568.2239.591253.193091.42
Intermediate Supports 0 / 00 / 03 / 33 / 33 / 3
Corbel Width m 1/2 Tube Space1/2 Tube Space1/2 Tube Space
Fin Type NoneSolidSolid
Fin Material NoneCarbon SteelCarbon Steel
Fin Height mm 19.0525.4
Fin Thickness mm 1.271.27
Serrated Fin Wn
Fin Densityfins/m 157197
Radiant section 1,Coil sect. no. 1, complies with API 530#Radiant section 2,Coil sect. no. 1, complies with API 530
Convection section 1,Coil sect. no. 1, complies with API 530
Convection section 1,Coil sect. no. 2, complies with API 530
Convection section 1,Coil sect. no. 3, complies with API 530

Notes
1. For vertical-tube, vertical-fired heaters, the maximum radiant straight tube length shall be 18,3 m (60 ft)
2. For horizontal heaters fired from both ends, the maximum radiant straight tube length shall be 12,2 m (40 ft)
3. API 560 - The tube-wall thickness should be in accordance with ISO 13704 (unless otherwise mutually agreed)
4. API 560 - Tube-wall thicknesses should include the minimum allowances for corrosion and/or erosion as follows:
- Carbon Steel Tubes - 3mm (0.125in)
- P Grade Tubes Tubes - 2mm (0.08in)
- Stainless Steel Tubes - 1mm (0.04in)
5. The unsupported length of horizontal tubes shall not exceed 35 times the outside diameter or 6 m (20 ft), whichever is less.

API 530

Calculation of Heater-tube Thickness in Petroleum Refineries

HeaterSIM - Fired Heater Simulation Results

Online API Fired Heater Software

Location RADIANTRADIANTCONVECTIONCONVECTIONCONVECTION
Coil/Piping Section Coil Section 1Coil Section 1Coil Section 1Coil Section 2Coil Section 3
Design PressurekPa g2000.22000.22000.22000.22000.2
Max Operating PressurekPa g750.1750.1750.1750.1750.1
Design Temperature°C511.0971511.0971253.3483266.0134210.785
Tube Material Carbon SteelCarbon SteelCarbon SteelCarbon SteelCarbon Steel
Tube Outside Diameter 141.3141.3141.3141.3141.3
Tube Thickness mm 6.556.556.556.556.55
Corrosion Allowance mm 33333
Design Lifehours100000100000100000100000100000

TUBE DESIGN RESULTS

Specified Tube Thickness mm 6.556.556.556.556.55
ELASTIC DESIGN
Elastic Allowable StresskPa84244.384244.3126439124841.6131807.3
Elastic Stress Thickness mm 1.65781.65781.10891.1231.0641
Elastic Min. Tube Thickness mm 4.664.664.114.124.06
Elastic Average Tube Thickness mm 5.325.324.74.714.64
Elastic Design Comment Thickness is OKThickness is OKThickness is OKThickness is OKThickness is OK
RUPTURE DESIGN
Rupture Allowable Stress 31211.231211.2000
Rupture n factor 4.5206134.520613000
Rupture Stress Thickness mm 1.67781.6778000
Rupture Min. Tube Thickness mm 4.684.68000
Rupture Avg. Tube Thickness mm 5.355.35000
B factor 1.7880871.788087000
Corrosion Factor Fcorr 11000
Rupture Design Comment Thickness is OKThickness is OKNot applicableNot applicableNot applicable

Stack & Draft Summary

HeaterSIM - Fired Heater Simulation Results

Online API Fired Heater Software

Stack Height m 16
Stack Diameter m 3.15
Cone Diameter m 3.052
Cone Height m 0.5
Actual Exit Velocitym/s6.5
Design Exit Velocitym/s7.8
Flue Gas Temp.°C233
Flue Gas Flowkg/s29.74
Steel Area158.438
Stack Entry PressuremmH2O-1.597
CO2mol%8.06
H2Omol%16.06
N2mol%72.67
O2 mol%3.21
SO2mol%0
Draft at Stack BasemmH2Og-2.5
Draft at ArchmmH2Og-2.5
Draft at FloormmH2Og0
heater560, fired heater draft calculation, api 560 fired heater draft profile, draft, profile, draft simulation, heater simulation
Stack No. 1: Auto Stack calc. has converged OK

Refractory

HeaterSIM - Fired Heater Simulation Results

Online API Fired Heater Software

Hot-FaceHot-FaceHot-FaceBack-UpBack-UpBack-UpMaterial
Flue Temp.MaterialThicknessConductivityMaterialThicknessConductivityAllowable FluxActual FluxDesign Temp.Anchor TypeCasing Temp.Comment
°C mmW/mK mmW/mKW/m²W/m²°C
RADIANT FLOOR 1 735.1MW Castable74.90.4ULW Castable150.10.14732.5503.91400V Y Anchors73.3Refrac. thickness OK
RADIANT WALL 1 640.6Fibre (High Density)74.90.1None00732.8618.91260Twistlock Pins74.4Refrac. thickness OK
RADIANT ARCH 1 785.1Fibre (High Density)87.60.1None00824800.81260Twistlock Pins80.6Refrac. thickness OK
RADIANT FLOOR 2 735.1MW Castable74.90.4ULW Castable150.10.14732.5503.91400V Y Anchors73.3Refrac. thickness OK
RADIANT WALL 2 640.6Fibre (High Density)74.90.1None00732.8618.91260Twistlock Pins74.4Refrac. thickness OK
RADIANT ARCH 2 785.1Fibre (High Density)87.60.1None00824800.81260Twistlock Pins80.6Refrac. thickness OK
CONVECTION SIDEWALL 1 508.8LW Castable74.90.3ULW Castable74.90.13732.8512.81100V Y Anchors68.1Refrac. thickness OK
STACK 1 233LW Castable62.70.3None00732.8616.61100V Y Anchors74.4Refrac. thickness OK
No thermal calc. carried out for Convection End Wall (Tubesheets) or Headerbox sections

Notes
1. Environmentally friendly body-soluble fibre is the recommended choice for fire insulation
2. HW and MW Castable is strong enough to be used on floor without a top brick layer
3. Ceramic fibre insulation are typically used in all areas except stack and ducting.
4. Ceramic fibre not suitable for convection sections with sootblowers or steam lances are used for cleaning.
5. Vapour barrier protective coating is required behind all areas lined with ceramic fibre
6. SS foil barrier is required for ceramic fibre lined areas if the sulphur content exceeds 500ppm by mass.

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