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Dynamic simulation of Steam and Power System.ppt

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Murty Moguluru
Murty Moguluru

The dynamic performance of Steam and Power Systems in process industries like petroleum refineries, petro chemical projects have crucial role in controlling process parameters. Dynamic simulation helps in predicting the performance before the plant is built.

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Dynamic simulation of Steam and Power System Dr M S R Murty msrm1951@gmail.com
Stream Generators LP Process VHP HP MP PRDS Process Process Process HRSGs UBs G Typical Steam and Power System Headers 107/ 510 45/ 400 20/ 340 5.5/ 220 Kg/Cm2 o C C G GAS TURBINE G Steam Turbine
Captive Power Plant - General Overview NAPHTHA GAS OIL GAS TURBINE NAPHTHA GAS OIL 8 X 125 TPH HRSG AUX BOILERS 4 x 125 TPH Refinery Fuel Oil STEAM TURBINE HP steam 42 Kg/cm2 MP steam 17 Kg/cm2 To Refinery Power Steam INSTALLED CAPACITY 360 MW 1500 TPH PRESENT GENERATION 269 MW 979 TPH EXPORT TO GEB CAPABILITY 80 MW ------------ TO GEB 132/220 kV TO REFINERY 4 X 30 MW 8 X 30 MW 11 KV 33 KV 33 KV 11 KV Reliance Jamnagar
• All 4 STGs are tested to deliver 30 MW of power. • Steam turbines are provided with HP and MP extractions • Maximum steam flow through one steam turbine shall be as follows 262 TPH HHP steam (Max) Pr: 109 Kg/CM^2 @ 505 DegC 180 TPH HP steam (Max) 149 TPH HP steam (Normal) Pr: 44.8 Kg/CM^2 @ 383 DegC 80 TPH MP steam (Max) 53 TPH MP steam (Normal) Pr: 18.8 Kg/Cm^2 @ 282 DegC 60 TPH to Condenser (Max.) 20 TPH to Condenser (Min.) Steam Turbine MP 133 TPH LP 60 TPH Normal steam flow HP section =15.27 MW MP section = 5.73 MW LP section = 11.81 MW Reliance Jamnagar
Typical Steam and Power System • 8 GTGs, 4 STGs (extraction types) • 8 HRSGs, 4 Aux Boilers • Steam generators and Consumers within Process • Turbine driven equipment in Process • Limits on Header pressure:+3 %,- 10 % Temperature: + or – 10 %
Set point Process Steam Pressure STEAM GENERATORs V H P H E A D E R GOVERNING SYSTEM G UPSET : SUDDEN STEAM DEMAND CHANGE MP LP tph sec
Set point Process Steam Pressure STEAM GENERATORs V H P H E A D E R GOVERNING SYSTEM G UPSET : STEAM TURBINE TRIP MP LP
C ST G G G GAS TURBINE Div Damper HRSG VHP STEAM HEADER Upset: GT TTRIP or HRSG Trip Fuel Inlet Air
Steam and Power system Dynamics Steam System Power System Fuel System Upsets in one system can influence the other
Header Pr Variations For T-C Upset
Steam Flows for Upset condition
Dynamic simulation of Steam and Power System.ppt
Dynamic simulation of Steam and Power System.ppt
Dynamic simulation of Steam and Power System.ppt
Summary • Dynamic simulation helps in predicting transient deviations in critical process parameters • Tuning of control system parameters can be done based on simulation study • Different control strategies can be evaluated

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Dynamic simulation of Steam and Power System.ppt

  • 1. Dynamic simulation of Steam and Power System Dr M S R Murty msrm1951@gmail.com
  • 2. Stream Generators LP Process VHP HP MP PRDS Process Process Process HRSGs UBs G Typical Steam and Power System Headers 107/ 510 45/ 400 20/ 340 5.5/ 220 Kg/Cm2 o C C G GAS TURBINE G Steam Turbine
  • 3. Captive Power Plant - General Overview NAPHTHA GAS OIL GAS TURBINE NAPHTHA GAS OIL 8 X 125 TPH HRSG AUX BOILERS 4 x 125 TPH Refinery Fuel Oil STEAM TURBINE HP steam 42 Kg/cm2 MP steam 17 Kg/cm2 To Refinery Power Steam INSTALLED CAPACITY 360 MW 1500 TPH PRESENT GENERATION 269 MW 979 TPH EXPORT TO GEB CAPABILITY 80 MW ------------ TO GEB 132/220 kV TO REFINERY 4 X 30 MW 8 X 30 MW 11 KV 33 KV 33 KV 11 KV Reliance Jamnagar
  • 4. • All 4 STGs are tested to deliver 30 MW of power. • Steam turbines are provided with HP and MP extractions • Maximum steam flow through one steam turbine shall be as follows 262 TPH HHP steam (Max) Pr: 109 Kg/CM^2 @ 505 DegC 180 TPH HP steam (Max) 149 TPH HP steam (Normal) Pr: 44.8 Kg/CM^2 @ 383 DegC 80 TPH MP steam (Max) 53 TPH MP steam (Normal) Pr: 18.8 Kg/Cm^2 @ 282 DegC 60 TPH to Condenser (Max.) 20 TPH to Condenser (Min.) Steam Turbine MP 133 TPH LP 60 TPH Normal steam flow HP section =15.27 MW MP section = 5.73 MW LP section = 11.81 MW Reliance Jamnagar
  • 5. Typical Steam and Power System • 8 GTGs, 4 STGs (extraction types) • 8 HRSGs, 4 Aux Boilers • Steam generators and Consumers within Process • Turbine driven equipment in Process • Limits on Header pressure:+3 %,- 10 % Temperature: + or – 10 %
  • 8. C ST G G G GAS TURBINE Div Damper HRSG VHP STEAM HEADER Upset: GT TTRIP or HRSG Trip Fuel Inlet Air
  • 9. Steam and Power system Dynamics Steam System Power System Fuel System Upsets in one system can influence the other
  • 10. Header Pr Variations For T-C Upset
  • 11. Steam Flows for Upset condition
  • 15. Summary • Dynamic simulation helps in predicting transient deviations in critical process parameters • Tuning of control system parameters can be done based on simulation study • Different control strategies can be evaluated