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Example Nuclear Projects
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Off-Gas Heat Exchanger Replacement
WPE was contracted to
support a major nuclear utility in the design and
specification of a replacement Off-Gas heat exchanger
used for BWR plant power operation. The project involved
the review and analysis of thermal hydraulic conditions
and specification of new shell and tube materials to
mitigate premature component failure.
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GSI-191 PWR Sump Strainer Blockage
WPE was recently
involved in the evaluation and analysis of various
aspects of the GSI-191 issue. Our responsibilities have
included the following:
Development of various Design Input Reports for use in
supporting analysis using the guidance provided in NEI
04-07.
Development of Debris
Generation (DG) and Debris Transport (DT) analysis in
accordance with NEI 04-07; including base scope debris
generation, transport logic tree and headloss analysis.
Development of Debris
Headloss (DH) analysis in accordance with NEI 04-07 and
Regulatory Guide 1.82. Preliminary Strainer Feasibility
Studies and the integration of Computational Fluid
Dynamics (CFD) were also utilized as part of these
analyses.
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Condensate Polishing Pre-Filter
Shield Analysis
WPE was involved in the
evaluation and structural analysis of the Transco
Products Inc. (TPI) supplied lead shielding framework
design in support of a Condensate Prefilter Project for
a Boiling Water Reactor (BWR) Nuclear Generating
Station.
The analysis addressed
the support framing required to carry the weight of the
pre-filter shield assembly and generated seismic forces.
The framing was analyzed using the computer program
“Visual Analysis Advanced 5.1”. Hand calculations were
also performed to confirm global stability requirements
and connection design strength.
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Control Room Habitability Program
Updates
WPE was contracted to
support the development of comprehensive Control Room
Habitability Programs for various nuclear generating
stations in response to Generic Letter 2003-01. WPE
staff compiled and evaluated available information
pertinent to the current plant Control Room Habitability
System. In addition to bases documentation reviews and
development, project support included walk-downs to
establish actual configuration and material condition
for the affected systems, review of radiological dose
assessment and accident analyses, development of
qualitative smoke assessments, development of a current
toxic gas analysis, integration of the tracer gas test
vendor’s procedure to meet specific plant procedural
requirements for test execution, and development of a
Control Room Envelope Integrity Program (CRIP) to
satisfy new regulatory Tech Spec requirements. |
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Toxic Gas Analysis Updates
WPE staff has also
supported various nuclear generating plants in update of
the their Toxic Gas Off-site and On-site Inventory
Survey and revision to their toxic gas analysis of
record in accordance with Reg Guide 1.78, Revision 1
guidance. WPE staff compiled data and has evaluated new
and/or increased/decreased volumes of toxic/hazardous
materials internal and external to the plant site.
Additionally, transportation modes within close
proximity to the site boundaries were surveyed to
evaluate the frequency and quantities of hazardous
material shipments, including explosive materials, near
the facility. This data was used to develop a screening
spreadsheet (using RG 1.78 criteria) to determine if
input values used in the plant's existing Toxic Gas
Engineering Assessment bound current conditions. Upon
completion of the survey, WPE generated a revision to
the current plant's analysis of record using the
computer code HABIT 1.1 EXTRAN and CHEM modules. |
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Batchelder Road
Seabrook, NH 03874
603-474-7477
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