STRATEGY FOR EFFICIENT OPERATION HEL ( 2*300 MW TPP)

1. STRATEGY FOR EFFICIENT OPERATION HEL ( 2*300 MW TPP)

2. HEL Operational Indices

3. Challenge & Strategy • Upcoming Challenge • Non conventional Power Source. • Load Cycling • Performance base scheduling • Stringent norms • Mitigations Strategy • Improvement in Part Load Efficiency • Optimization of existing inefficient process • Real Time Monitoring of Performance to create competitive atmospheres • Identification of Losses & Rectification on urgent basis. • Improvement initiative • Water Conservation • Set Up Cross Functional Team • Technology Upgradation • Remote Monitoring System from GE • Flame Scanner (make by M/S ABB ) for Online temperature measurement -Under Study

4. Improvement in Part Load Efficiency Capacity Utilization Nozzle Governing/Sequential Governing Effective Load Management Maintain Rated Re heater Temperature at low load Optimum Main Steam Pressure at part Load

5. A . Improvement in Part Load Efficiency-Capacity Utilization

6. A. Improvement in Part Load Efficiency-Sequential Governing

7. A . Improvement in Part Load Efficiency-Schedule Management

8. A . Improvement in Part Load Efficiency-Schedule Management

9. A . Improvement in Part Load Efficiency-Reheat Temperature

10. A. Improvement in Part Load Efficiency-MS Pressure Optimization 15.2 MPA

11. B. Optimization of existing inefficient Process –Boiler Combustion

12. B. Optimization of existing inefficient Process –Boiler Combustion • Remarkable Increment of reliability and the reduction of emission of the plant has been attribute to the following parameters : • Reduction of NOX • Increase in flame stability at Part Load • Reduction of Local Hot Spots • Reduction of Metal temperature alarm.

13. B. Optimization of existing inefficient Process –Soot Blowing Tube Metal Temperature

14. B. Optimization of existing inefficient Process –Soot Blowing Tube Metal Temperature

15. B. Optimization of existing inefficient Process –Primary Air Pressure

16. Measure , Identification & Rectification of Loss • C . Real Time Monitoring of Performance to create competitive atmospheresn- • house developed Software • Shift Wise accountability of key process parameter • Auxiliary Power monitoring on Real time basis • Turbine Heat rate monitoring on Real time basis • D . Identification of Losses & Rectification on urgent basis • High Energy Drain Survey • Insulation Survey • Power Cycle make up - 0.11 %

17. E . Improvement initiative

18. F . Water Conservation • Action Taken • All volatile treatment thus avoiding Boiler drum blowdown. • RO Augmentation to recycle existing RO reject • ETP effluent reuse as coal stock spray • Run Intake Pump as by observing conductivity at river water • Rain Water Harvesting

19. THANK YOU