This document provides instructions for operating a thermal power plant over the course of a day. It includes starting various systems like the coal handling plant, primary air fans, mills and coal feeders to start producing power. It also details increasing the load by bringing additional mills online and adjusting support systems. The goal is to eventually reach full load of 210 MW by following the specified procedures.

1. THERMAL POWER PLANT
OPERATIONS
Simulator Part 7- Day 4
MANOHAR TATWAWADI
Director, tops
A2-806, PALLADION, BALEWADI, PUNE 411045
Mob: 9372167165, Email:-mtatwawadi@gmail.com
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2. C H P
Loading with Oil Support
Take Oil support in CD and EF Elevations slowly
observing Drum Pressure, Drum Level, Load, Diff
Expansions, All Tank Levels
Panel FSSS
Panel BFP and Aux PRDS
Panel Condensate System
Panel Turbine Control
Starting of Coal Handling Plant MIMIC CHP Part I, II, & III
Start Conveyer Belt No 17A and 17B Use MIMIC “CHP PART III”
Start Conveyer Belt No 16A and 16B Use MIMIC “CHP PART III”
Start Conveyer Belt No 24A and 24B Use MIMIC “CHP PART III”
Start Conveyer Belt No 23A and 23B Use MIMIC “CHP PART III”
Start Secondary Crushers 1 & 2 Use MIMIC “CHP PART III”
Start Conveyer Belt No 15A and 15B Use MIMIC “CHP PART III”
Start Conveyer Belt No 20A and 20B Use MIMIC “CHP PART II”
Start Primery Crushers 1 & 2 Use MIMIC “CHP PART II”
Start Conveyer Belt No 14A and 14B Use MIMIC “CHP PART II”
Start Conveyer Belt No 13A and 13B Use MIMIC “CHP PART I”
Adjust the Bunker Trolley Position for Bunker 4 EField Page 25 – 4-5
Start Conveyer Belt No 11A and 11B OR 12 Use MIMIC “CHP PART I”
Confirm all Chute Gate Positions on Centre Efield Page 24 6-17
Start Vibrating Feeder WAGON TIPPLER 1 OR 2 as
per conveyer belt NO 11 OR 12
Use MIMIC “CHP PART I”
Observe the Bunker Level for Unit 4 rising Use MIMIC “CHP PART III”
For only one stream in service change the Chute Gate Positions to LEFT for A
stream OR Right for Stream B and do all the operations as above.
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3. Starting P. A. Fans
Check all the Lub Oil Pumps of PA Fans are on
Remote
IMF Page No 8
Start Lub Oil Pump 1 for PA Fan A and put the
A/M Switch on AUTO from Panel
Panel “ Fan and
Air Heater”
Take the trial of S/B pump pickup by stopping
the running LOP.
Panel “ Fan and
Air Heater”
Put the Seal Air Fan A and B on AUTO to pick
up with PA Fan
Panel “ Fan and
Air Heater”
Open Cold Air Gates of all ready Coal Mills Field Page 3 , 12-
17
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4. PRIMARY AIR TO MILLS
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5. ID, FD, PA & Seal Air Fans
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6. Starting P. A. Fans
Open all RCF Gates of all Coal Mills Field Page 3, 0-5
Open Cold Air Damper full of any of the Mills Panel “Mill and Coal Feeders”
Check the setpoint of PA Header Pressure
800mm and Vanes of PS Fans are in Zero
Position (Closed)
Panel “ Fan and Air Heater”
Check the Discharge and Interconnection
Dampers are on Interlock
Panel “ Fan and Air Heater”
Open the Air Heater Dampers for PA Inlet and
Outlet (AD20, 21 and AD40,41)
Field Page 2, 12-15
Start PA Fan A and B as per selection Panel “ Fan and Air Heater”
Slowly open the IGV of Both the fans, Observe
the PA Header Pressure Rising and put both IGV
and Master control on AUTO
Panel “ Fan and Air Heater”
Check the seal air fan has also started Panel “ Fan and Air Heater”
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7. Taking Coal Cycle A in Service
Put all the Aux Air Dampers for all mills on AUTO Panel FSSS
Check the PA Header Pressure > 650mmwcl Fan and Air Heater”
Open the Pulveriser Discharge Gate A Panel FSSS
Pulveriser Ready Conditions
1. Ignition Energy available & 2. Pulveriser Discharge gate open
Check the Pulveriser Ready Indication on Panel Panel FSSS
Start the Coal Mill A Panel FSSS
Open Hot Air Gate of Mill A Panel FSSS
Check / Correct the Set Points of Hot Air Temp at 75 Deg
C and Hot Air Flow @ 55 TPH
Panel “Mill and
Coal Feeders”
Observe the load
about 80 MW
Slowly open the Hot Air Damper and observe the Flow
and Temp of the Mill
Put Hot air Damper and Cold Air Damper on AUTO
At Mill Temp >60 Deg C Start the Coal feeder A .
Increase the RPM of Coal Feeder A Slowly10/19/2019 total output power solutions 7

8. PANEL FSSS
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9. Panel Mill & Coal Feeders
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10. Loading further…
Increase the RPM of Coal Feeder A Slowly to
more than 50%
Panel “Mill and
Coal Feeders”
Observe Load rising up to about 80 MW
Changeover Low Load Feed Line to Main
Line and put the Feed valve & BFP scoop on
AUTO
Panel Boiler Feed
Pump and PRDS
At this point Charge ESP Fields so as to
collect the Ash in the ESP Hoppers
ESP Mimic
After stabilizing Drum Level take another
Coal Mill (B) in service. Follow the
procedures as detailed in the slide before.
Panel FSSS &
Mill& Coal
Feeders.
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11. Starting of Second BFP B
Check the following for BFP B from Field Page 7
• Suction Valve Open
• Balancing Leak Off Valve Open
• Recirculation Valve Open
• Warm Up Valve Open
• Discharge Valve Close
• Lub Oil Pump in Service
• Scoop Position Minimum (30%)
Start BFP B ensuring LRP on Remote and Pre Check Available
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12. Starting of Second BFP B
• Observe the following on Panel BFP and Aux PRDS
• Discharge Valve Opens automatically
• Running LOP Stops as MOP Takes Load
• Warm up Valve Closed
• Increase the scoop and equalize the same with the
running pump and put on AUTO
• Put 1P/2P selection on 2P
• Put 3E/DP switch on DP
• Match the scoop of Standby pump with running pump
and put on AUTO
• Put S/B Pump Selection on N12S3
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13. Drum Level Control on AUTO
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14. Charging of LP Heaters
Open the Drip Diversion Valves from the mimic “LP Drip System”.
HD1 (GSC-2 to Cond), HD8 (LPH2 to Cond), HD15 (LHP 4),
HD16 (LPH4 to LPH 3), HD17 (LPH 3), HD18 (LPH 3 to LPH 2)
Keep the following valves on Auto and Remote
HD2, HD3, HD4, HD1, HD5
Open the following Extraction Valves
ES 12 (Extn 4 to LHP 4), ES 13 (Extn 3 to LHP 3), ES 14 (Extn 2
to LHP 2)
Observe the levels of all heaters in MIMIC
Starting the Drip Pump
Open Suction Discharge Valves of Drip Pumps A, B and
Start Drip Pump A OR B from Panel “Condensate System”
Put S/B pump selection on N1S2
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15. LP Heaters Drip System
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16. Supply Changeover to UAT
Make the UAT Incomer to R4A ON MIMIC R4A
Observe Tripping of Tie to Station
C3A10
MIMIC R4A
Make the UAT Incomer to R4B ON MIMIC R4A
Observe Tripping of Tie to Station
C4B8
MIMIC R4A
Also Observe No Tripping of any
auxiliaries
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17. UAT INCOMER TO R4A
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18. Supply Changeover to UAT
UAT
INCOMERS
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19. CHARGING OF HP HEATERS
• Open Feed Line Valves FW19 and FW 20 from MIMIC “Feed
Water System”
• Close FW24 (HP Heaters Bypass) and Observe Drum Level
• Keep Open HPH Drain Valves to UFT(HD25,26,27) for 2
minutes to drain the heaters. (From MIMIC “HP Drain
System”)
• Close the HPH Drain Valves HD25,26,27 to UFT
• Open Valve HD28 (HPH to Deaerator)
Check the following Valves on Interlock
• HD 21 ( Drip to LPH4)
• HD 29 (Drip to HPH6 to HPH5)
• HD 30 (Drip from HPH6 to Deaerator)
• HD 31 (Drip from HPH6 to LPH4)
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20. HP Heaters Drain System
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21. CHARGING OF HP HEATERS
• Check the following Valves on REMOTE and AUTO
• HD22 (Drip from HPH7 to HPH6)
• HD23 (Drip from HPH6 to HPH5)
• HD24 (Drip from HPH5 to LPH4)
• Open the Extraction Valves ES3, ES4. ES5
• Observe the Heater Levels from MIMIC “HP DRAIN
SYSTEM”
• Observe the Increase in Load From TRENDS “COMMON
PLANT PARAMETERS”
• This completes the charging of HP Heaters.
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22. RAISING THE LOAD TO 210 MW
• Full Load by taking Coal Mills C, D and E
• Withdraw Oil Support in AB Elevation
• Withdraw Oil Support in CD Elevation
• Try to Take Mill D without Oil Support
• Take D Mill in Service
• Take Heavy Oil support in EF Elevation from FSSS Panel
• Take Coal Mill E in service
• Withdraw Oil Support from EF Elevation
• Put the Main Steam and RH Steam Temp Control on
AUTO.
• Put the Burner Tilt on AUTO.
• Observe the load rising to 210 MW
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