siemens - Public Service Commission

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Crystal River Unit 3
Nuclear Power Station
Replacement Turbine Generator
Table of Conformance - Technical
Comments
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- Turbine Stage Moisture Removal Effectiveness
- LP Turbine Exhaust Loss Curve
- Generator Loss
Phase 2 Installation: HPT. Balance of Plant Modifications Guarantee
Guarantee the turbine-generator gross electrical output (MW,) uplift after
installation of the HPT steam paths at 3030 MWt backpressure, and makeup in
a r c " with the rantract ouarantee heat balance
This performance improvement results directly and exclusively from the scope of
supply defined in this specification.
Provide a revised thermal kit for the revised turbine designs that includes the
following but not limited to:
- Heat Balance Diagrams with the new HPT and balance of plant components at
WO, 100% MWth (guarantee point), 75%, 50% and 25%. The baseline and
guarantee HBDs will provide the basis for the thermal performance warranty.
- Net Heat Rate
- Turbine Expansion Line for each Heat Balance
- HP Turbine expansion line end points
- First Stage Pressure vs. Flow
- Extraction Stage Pressure vs. Flow
- Gland Leakages and Mechanical Losses
- Heat Rate and Load Correction Curves for
o Exhaust Pressure,
o Throttle Pressure,
o Throttle Temperature,
o ReheaterllD
- Turbine Stage Moisture Removal Effectiveness
Turbine Performance
The Sellets heat balance shall be based on the operating parameters specified
on the Buyers heat balance for nominal full load conditions.
Specific requirements for the design include:
- HP turbine throttle pressure and temperature,
- HP turbine throttle enthalpy,
- HP turbine throttle flow, and
- Final feedwater temperature
Values for feedwaler heater performance at uprated conditions as well as
extraction line pressure losses can be obtained from the Buyers heat balance.
Values for MSR performance shall be provided based on the proposed new
desian
PEF-NCR-01301
Doc a50846
4/10/2008 P = Paragraph No
17