Appendix E-2.c.i Energy Plan 2004-2013 Follow-up Studies and ...

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Re-powering Study for the Northport and Port Jefferson Power Stations Appendix II Northport System Descriptions The FGS piping begins at the outlet of the gas suppliers metering station. A single line is routed from the metering station, through a knockout drum and filter/separator to meet the CT cleanliness requirements. Liquids separated from the gas stream are automatically drained into a fuel gas drains tank. A containment area is provided under the drain for capturing spills. A knockout drum, designed to remove any liquids from the pipeline gas, will be installed at the interface with the gas supplier upstream of the filter/separator. A 100% capacity shell and tube fuel gas heat exchanger is provided for each gas turbine to raise the fuel temperature to the gas turbine manufacturer’s requirements. The source of heat for these is the CT compressor. The fuel gas supply lines leaving the heaters are routed to their respective CT enclosures. The CT enclosures include the gas shutoff, vent, and control valves that control the flow of gas to the CTs. 1.9 Aqueous Ammonia Refer to PID-08-17A in Appendix III. Industrial grade aqueous ammonia at 19% concentration is received by truck. A vapor return line from the ammonia storage tank back to the delivery truck provides venting of the tank during filling operations. A single storage tank provides five days of capacity based on full load operation of the particular option. From the tank, two 100% ammonia feed pumps convey the aqueous ammonia through a strainer to the ammonia vaporization skid for each HRSG. A self regulating positive displacement pump maintains the required flow and a constant pressure to a dedicated injection skid for each HRSG. The injection skid mixes the ammonia with high temperature flue gas drawn off the HRSG to vaporize the ammonia as necessary to obtain proper distribution into the exhaust gas via the ammonia injection grid located inside the HRSG upstream of the SCR. The injection skid includes two 100% blowers. 1.10 Component Cooling Water Refer to P& ID 09-09A thru 09D in Appendix III. The Hybrid Option will have two parallel CCW heat exchange systems working together to provide adequate CCW cooling. The existing seawater cooled system will be used for primary CCW cooling and a new system will provide additional cooling for the CCW System as needed. The two systems supply cooling water to the steam turbine lube oil coolers, steam turbine generator hydrogen coolers, the combustion turbine(s) lube oil coolers, combustion turbine(s) generator hydrogen coolers, the sampling system sample coolers, and any other plant components that require cooling water. The new system will include two 100% capacity pumps which provide the motive force for circulation of the closed cooling water to all the system users. The third pump will provide capacity for the supplemental fin fan heat exchangers as required. The pumps are horizontal, single stage, centrifugal pumps. Butterfly valves are installed on the intake and discharge of each pump. For pump protection, a check valve is installed on the discharge side of each pump. A fin-fan type heat exchanger is used to transfer new CCW heat gains to the atmosphere as needed. A surge tank is provided to allow for thermal expansion, and acts as a surge volume for the CCW System water. The surge tank, which is installed at the highest point in the system, also provides net positive suction head (NPSH) for the CCW pumps. The surge tank is equipped with level instrumentation, which March 30, 2009 152
Re-powering Study for the Northport and Port Jefferson Power Stations Appendix II Northport System Descriptions provides signals to operate an automatic make-up valve. Make-up water is supplied from the Condensate System. A chemical addition pot is installed for the addition of chemicals to control corrosion within the CCW System. The Hybrid Option at Northport uses the existing seawater cooled tubular liquid to liquid heat exchangers to transfer existing ST associated CCW heat gains to the once through circulating water system. The two CCW Systems supply the following components with cooling water: • Steam Turbine Lube Oil Coolers • Steam Turbine Generator Hydrogen Coolers • Steam Turbine Generator Exciter Coolers • Steam Turbine Generator Seal Oil Coolers • Combustion Turbine Lube Oil Coolers • Combustion Turbine Control Oil Coolers • Combustion Turbine Starting Package Oil Coolers • Combustion Turbine Generator Hydrogen Coolers • Combustion Turbine Generator Seal Oil Coolers • Condenser Vacuum Pumps [if applicable] (Cooling is provided to the liquid ring vacuum pump heat exchangers) • Feedwater Pump Lube Oil Cooler [if applicable] • Sample System Sample Coolers • Instrument/Service Air Compressors [if applicable] System components that could be subject to greater than their design pressures during operation are protected from over pressure during operation by pressure relief valves. Temperature control valves regulate cooling water flow through the turbine lube oil coolers and generator coolers. The flow of closed cooling water through the various components is either automatically regulated, or manually adjustable to meet each manufacturer’s recommendations. 1.11 Instrument & Service Air Refer to PID 12-01A and 12-02A in Appendix III. Compressed air is supplied throughout the facility and subdivided into instrument air and service air according to the air quality requirements. The instrument air serves all users where dry oil-free air is required (i.e. air operated control valves, instrumentation), where there is a potential of freezing the service air line or if interruption of the air supply is not acceptable (i.e. atomizing air to the ammonia skid for the SCR system). The service air serves common users in the plant such as tools via hose connection stations located throughout the facility. The Instrument/Service Air System will have the following characteristics: March 30, 2009 153
Page 1 and 2: Electric Resource Plan 2010 - 2020
Page 3 and 4: March 30, 2009 Re-powering Study fo
Page 5 and 6: Northport Repower Study Option 4 2x
Page 7 and 8: Re-powering Study for the Northport
Page 13: Re-powering Study for the Northport
Page 21 and 22: • Auxiliary Boiler System • All
Page 31 and 32: 1 2 3 4 5 6 7 8 9 10 A SUPERHEATER
Page 33 and 34: 1 2 3 4 5 6 7 8 9 10 A 0304 PID-03-
Page 35 and 36: 1 2 3 4 5 6 7 8 9 10 A 0341 PID-03-
Page 37: 1 2 3 4 5 6 7 8 9 10 A 0368 PID-03-
Page 40 and 41: 1 2 3 4 5 6 7 8 9 10 A 0831 PID-08-
Page 42 and 43: 1 2 3 4 5 6 7 8 9 10 A 0427 PID-04-
Page 44 and 45: 1 2 3 4 5 6 7 8 9 10 A FGS FGS FGS
Page 46 and 47: 1 2 3 4 5 6 7 8 9 10 A 0823 PID-08-
Page 50 and 51: 1 2 3 4 5 6 7 8 9 10 0904 PID-09-09
Page 52 and 53: 1 2 3 4 5 6 7 8 9 10 A FROM AIR COM
Page 54 and 55: 1 2 3 4 5 6 7 8 9 10 A REVISION DES
Page 56 and 57: 1 2 3 4 5 6 7 8 9 10 A 1330 PID-13-
Page 58 and 59: 1 2 3 4 5 6 7 8 9 10 A FROM HRSG 1A
Page 60 and 61: 1 2 3 4 5 6 7 8 9 10 A 0304 PID-03-
Page 62 and 63: 1 2 3 4 5 6 7 8 9 10 A 0341 PID-03-
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1 2 3 4 5 6 7 8 9 10 A 0368 PID-03-
Page 66 and 67:
1 2 3 4 5 6 7 8 9 10 A REVISION DES
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1 2 3 4 5 6 7 8 9 10 A 0831 PID-08-
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1 2 3 4 5 6 7 8 9 10 A 0427 PID-04-
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1 2 3 4 5 6 7 8 9 10 A FGS FGS FGS
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1 2 3 4 5 6 7 8 9 10 A 0823 PID-08-
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1 2 3 4 5 6 7 8 9 10 CCW VSH 0132A
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1 2 3 4 5 6 7 8 9 10 0904 PID-09-09
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1 2 3 4 5 6 7 8 9 10 A FROM AIR COM
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1 2 3 4 5 6 7 8 9 10 A REVISION DES
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1 2 3 4 5 6 7 8 9 10 A 1330 PID-13-
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Re-powering Study for the Northport
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Fuel Systems Re-powering Study for
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Accessory Electric Plant Re-powerin
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Fuel and Feed Re-powering Study for
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Accessory Electric Plant Re-powerin
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• Grounding and lightning protect
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• Combustion turbine foundation
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D3 Fuel Oil facilities Re-powering
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Appendix E-2.c.i Energy Plan 2004-2013 Follow-up Studies and ...

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