Microsoft PowerPoint - Introduction To Heat Transfer Equipment

Microsoft PowerPoint - Introduction To Heat Transfer Equipment

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Unformatted text preview: Introduction To Heat Transfer Introduction Equipment Course By : Prof. Mohajer prepared by: S.M. rafigh 2011 • Heat Exchangers Boilers Process Fired Heaters Heat Heat Exchangers Shell and Tube Heat Exchanger Shell Shell and Tube Heat Exchanger Details Shellside Flow In Tubeside Tubeside Flow Out Shell Tube Bundle Shellside Flow Out Tubeside Flow In Shell and Tube Heat Exchanger Shell Shell Outlet Channel Inlet Channel Outlet Shell Outlet SINGLE SEGMENTAL TRANVERSE BAFFLES Shell and Tube Heat Exchanger Shell Inlet Shell Outlet Double Segmental Transverse Baffles Shell and Tube Heat Exchanger Shell Doughnut and Disc Type Baffles Air Cooled Heat Heat Exchanger Hood or Plenum Fan Ring Fan Inlet Inlet Nozzles Return Headers Inlet Headers Headers Outlet Headers Outlet Nozzles Tube Bundle Drive Assembly Supports Double Pipe Heat Exchanger Shell Shell Cover Gasket Vent External Fin Pipe Shell Shell Cover Return Bend (welded) Drain Sliding Support Twin Flange Fixed Support Shell End Piece Plate and Frame Heat Exchanger 8 4 5 3 2 10 6 1 9 7 1 Tube Bending Shell and Tube Heat Exchanger Tube Tube Failure Shell and Tube Heat Exchanger Tube Fouling in Shell and Tube Heat Exchanger Fouling Boilers Boilers Fired Tube Boiler Fired Industrial Boiler Industrial Packaged Boiler Steam Drum Burners Mud Drum To Exhaust Stack Heat Recovery Steam Generator 10 2 3 4 6 5 7 8 1 1. Gas Turbine 6. Superheater 2. Dump Stack 7. Boiler Section 3. Bypass Damper 8. Downcomers 4. Boiler Shut-Off Damper 9. Economizer 5. Supplemental Burner 10. Steam Drum With permission from Henry Vogt Machine Company 9 Utility Boiler Steam Drum Boiler Superheater Mud Drum Economizer Air Air Heater Burners Steam Coil Air Heater To Stack Air Gas Outlet Gas Induced Draft Fan With Permission from Babcock and Wilcox Forced Draft Fan Process Fired Heaters Process Different Process Heater Designs Different C. Cabin Furnace with Horizontal Tube Coil A. Box Furnace with Arbor Coil B. Vertical Cylindrical Furnace with Helical Coil D. Box Furnace with Vertical Tube Coil E. Vertical Cylindrical Furnace with Vertical Coil F. Box Furnace with Horizontal Tube Coil Convection Coil Radiant Coil Burners Burners Cabin with Convection Section Cabin with Dividing Bridgewall Process Fired Heater Serrated Fins Studs Solid Fins Extended Surface Area Draft Profile 0 Stack Damper Hood Corbel Convectio n Section Shield Tubes Open Damper Closed Damper Radiant Section Burners Secondary air registers Typical fired heater is shown in cross-section –6 –4 –2 Pressure in inches of Water Relative to Atmospheric Pressure 0 +2 +4 R ro di rdo rm ri BulkFluid Temperature Temperature Inside Fluid Outside Fluid Bulk Fluid Temperature Tube Wall Outside Fouling (Scale) Inside Film Inside Fouling (Scale) Outside Film Resistance to Heat Transfer Tubewall Tube Metal Temperature Deposit Layer Film 800ºF 785ºF 766ºF Inside Tube Temperature 730ºF Film Temperature 700ºF Fluid 600ºF 500ºF 520ºF Bulk Fluid Temperature Temperature Profile in Heat Transfer 18 psig D-124 52 D-103 Offgas To Refinery Collection System To Whole Naphtha Stabilizer 41 Steam No. 1 S/C 32 C-100 Atmospheric Column Steam No. 2 S/C 24 Steam D-102 Flash Drum Steam No. 4 S/C 17 10 6 F-100 A/B Crude Atmospheric Preheat Furnaces Steam Exchangers 5 1 To Vacuum Overheat System No. 3 S/C C-200 Vacuum Column 26 psig No. 6 S/C 12 8 6 No. 7 S/C No. 8 S/C Crude Desalter Water F-200 A/B Vacuum Furnaces Crude Desalter Preheat Exchangers Water 5 Injection Steam to Radiant Coils Steam 2 psia 1 Vacuum Residuum Crude Unit - Ras Tanura Refinery Thanks Thanks ...
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This note was uploaded on 06/21/2011 for the course CHE 21345 taught by Professor Prof.mohajer during the Fall '10 term at Sharif University of Technology.

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