Appendix E-2.c.i Energy Plan 2004-2013 Follow-up Studies and ...
Appendix E-2.c.i Energy Plan 2004-2013 Follow-up Studies and ... Appendix E-2.c.i Energy Plan 2004-2013 Follow-up Studies and ...
Re-powering Study for the Northport and Port Jefferson Power Stations Appendix VII Northport Capital Cost Estimate Descriptions Backyard Repowering Option near Unit 1 - 3x3x1 7FB Combined Cycle This section includes descriptive information for the backyard repowering using a 3 x 3 x 1 7FB Un-fired design located north of Unit 1. The plant utilizes three F class combustion turbines (GE 7FB used for study purposes). A heat recovery steam generator (HRSG) is provided for each combustion turbine. The plant has a single steam turbine exhausting to an air cooled condenser. The plant will have a nominal capacity (ISO) of 825 MW. Plant Description The GE 7FB combustion turbine is based on the GE 7FA combustion turbine with higher firing temperatures extrapolated from data taken during the development of GE’s H technology. The 7FA has the longest operating history of the advanced, high efficiency combustion turbines and the performance of the most recent units indicates that it is a proven, low risk design. Figure 1 is a schematic illustration of the GE 7FB combined cycle plants. Natural Natural Gas Gas Metering Metering & & Conditioning Conditioning Distillate Distillate Oil Oil Storage Storage & & Handling Handling Water Water Water Water Treatment Treatment M G Figure 1 - Backyard Plant Schematic CT ACC = Air-cooled Condenser CP = Condensate Pump CT = Combustion Turbine G = Generator HRSG = Heat Recovery Steam Generator M = Main Step-up Transformer S = Stack ST = Steam Turbine M G CT G M M G CT March 30, 2009 250 HRSG HRSG HRSG S S S ST CP ACC
Re-powering Study for the Northport and Port Jefferson Power Stations Appendix VII Northport Capital Cost Estimate Descriptions The plant is designed to operate on natural gas fuel as the primary fuel with distillate oil back up, using dry, low NOx combustion and selective catalytic reduction for NOx control. When firing oil, water injection is required to reduce the NOx produced by the combustion turbine. The units are to be designed for an evaporative cooler with 85% effectiveness. The following sections describe major plant characteristics and the facilities. This description is organized by the list of accounts in the cost and performance models. A0 Demolition Demolition and/or relocation of existing equipment is included as described below: • Remove existing No. 6 oil tank • Relocate two existing septic systems A1 Combustion Turbine Vendor Package The 7FB combustion turbines are equipped with a dry, low NOx combustor which limits NOx when firing gas to 25 ppm and with water injection reduces NOx when firing oil to 42 ppm. The combustion turbines and generators will be enclosed in a turbine building. Each combustion turbine package includes: • Pulse jet inlet air filter • Inlet silencer • Evaporative cooler • Air processing unit • Static starting system • Fuel skid • Anti-icing inlet air heating system • Water injection skid • On-line and off-line compressor water wash system • Fire protection (CO2) and fire detection systems • Lube oil system • Static exciter • MARK VI control system with control options for combined cycle application, e.g. temperature matching, external speed set point and high steam temperature protection • Vibration (Bently Nevada 3500) and temperature monitoring • Batteries and battery charger A1 Combustion Turbine Balance of Plant Each combustion turbine balance of plant includes: March 30, 2009 251
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Re-powering Study for the Northport <strong>and</strong> Port Jefferson Power Stations<br />
<strong>Appendix</strong> VII Northport Capital Cost Estimate Descriptions<br />
Backyard Repowering Option near Unit 1 - 3x3x1 7FB Combined Cycle<br />
This section includes descriptive information for the backyard<br />
repowering using a 3 x 3 x 1 7FB Un-fired design located north of<br />
Unit 1. The plant utilizes three F class combustion turbines (GE 7FB<br />
used for study purposes). A heat recovery steam generator (HRSG) is<br />
provided for each combustion turbine. The plant has a single steam<br />
turbine exhausting to an air cooled condenser. The plant will have a<br />
nominal capacity (ISO) of 825 MW.<br />
<strong>Plan</strong>t Description<br />
The GE 7FB combustion turbine is based on the GE 7FA combustion turbine with higher firing<br />
temperatures extrapolated from data taken during the development of GE’s H technology. The 7FA has<br />
the longest operating history of the advanced, high efficiency combustion turbines <strong>and</strong> the performance of<br />
the most recent units indicates that it is a proven, low risk design. Figure 1 is a schematic illustration of<br />
the GE 7FB combined cycle plants.<br />
Natural<br />
Natural<br />
Gas<br />
Gas<br />
Metering Metering &<br />
&<br />
Conditioning<br />
Conditioning<br />
Distillate<br />
Distillate<br />
Oil<br />
Oil<br />
Storage Storage &<br />
&<br />
H<strong>and</strong>ling<br />
H<strong>and</strong>ling<br />
Water<br />
Water<br />
Water<br />
Water<br />
Treatment<br />
Treatment<br />
M<br />
G<br />
Figure 1 - Backyard <strong>Plan</strong>t Schematic<br />
CT<br />
ACC = Air-cooled Condenser<br />
CP = Condensate Pump<br />
CT = Combustion Turbine<br />
G = Generator<br />
HRSG = Heat Recovery Steam Generator<br />
M = Main Step-<strong>up</strong> Transformer<br />
S = Stack<br />
ST = Steam Turbine<br />
M G CT<br />
G M<br />
M<br />
G<br />
CT<br />
March 30, 2009 250<br />
HRSG<br />
HRSG<br />
HRSG<br />
S<br />
S<br />
S<br />
ST<br />
CP<br />
ACC
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