Advent has performed the following projects for clients in the power industry:
Design Basis Assistance and Configuration Control
- Prepared and validated three design basis documents on post-accident sampling
systems (PASS), main steam isolation valve leakage control system (MSIV-LCS),
and remote shutdown system for a BWR plant (DE0001).
- Performed validations of the Core Spray System and Reactor Manual Control
System DBDs for a BWR plant (DE0002).
- Prepared and validated comprehensive DBDs on fire protection (topical regulatory
program and conventional fire protection systems) and hazards (seven hazards
including: HELB, internal flooding, tornado, severe weather, industrial accidents,
internal missiles, and external flooding) for a multi-unit PWR installations
(WE0001).
- Prepared topical DBDs for EQ and fire protection programs for a BWR plant
(IE0203, IE0206).
- Prepared the River Water Supply System DBD for a BWR plant (IE0204).
- Prepared an electrical discipline topical DBD (IE0205).
- Prepared a grid stability topical DBD (CP0001).
- Prepared topical DBDs for EQ and station blackout programs for a multi-unit
PWR (WE0004).
- Prepared Pressurizer Pressure Control System DBD for a PWR plant (CP0006).
- Prepared major revision to an Accident Analysis DBD for a two-unit PWR (SC0112).
- Developed screening criteria and an implementation plan for determining
which plant drawings are required to be kept up-to-date and which are required
to be retained for historical purposes (IE0201).
- Performed extensive research and developed a configuration control system
for tracking the limiting values from accident analysis on a real time basis
for a multi-unit PWR installation (SC0103).
Environmental Qualification
- Performed a re-analysis of post-accident operating time qualification
for equipment located inside containment, based on a new LOCA profile, for a
PWR plant (FEDB13).
- Developed qualification documentation for a PWR PORV (FEDB08).
- Developed and implemented compensatory measures to assure the health of
EQ equipment following an extended boric acid exposure (FEDB07).
- Evaluated the effects of a Turbine Building HELB on the Operability of
EQ Equipment in the Auxiliary Feedwater Pump Rooms in response to IN 2000-20
(FEDB05).
- Provided technical support to engineering in responding to questions and
findings during and following a comprehensive internal quality assurance audit
of the EQ Program at a BWR plant (IE0101).
- Performed engineering evaluations for the exclusion of equipment and justifications
for continued operation of equipment subjected to the effects of a reactor water
cleanup line break in the reactor building of a BWR plant (IE0103).
- Analyzed vent paths related to HELBs in the torus room to refine and reduce
conservative dose rate assumptions in critical areas of the reactor building
affected by steam flooding (IE0104).
- Provided technical review/update of plant environmental specifications including
new methodology for detailed shielding calculations for localized beta doses
to equipment at a BWR plant (IE0102).
- Developed a "user friendly" approach for future updates of complying with
10 CFR 50.49 (EQ) requirements for aging assessments and performed aging assessments
for equipment inside containment for a PWR plant (TE0003).
- Performed a re-analysis of qualification for equipment located in HELB areas
outside containment, based on new HELB profiles, for a PWR plant (TE0004,
FEDB08). Required
test report re-evaluation.
- Developed four EQ file packages in a new format for a BWR plant (DE0004).
- Performed a major update of basis for post-accident operating time for 102
EQ files (TE0003, TE0004, FEDB13).
- Developed a detailed topical EQ program DBD which included a comprehensive
description of the evolution of EQ regulatory requirements for a BWR plant (IE0203).
- Developed 11 Mechanical EQ packages for a BWR plant (DE0020).
- Participated on Management Consulting Team which reviewed EQ Program effectiveness
at three CANDU nuclear stations (OH0001).
- Prepared topical DBDs for EQ and station blackout programs for a multi-unit
PWR (WE0004).
- Provided on-site assistance to a "problem plant" to resolve EQ Program issues
(SL0001).
10 CFR 50 Appendix R / Fire Protection
- Provided Appendix R Fire Protection analysis, prepared basis documents,
and electronic program documents for a single unit BWR plant (DE0035).
- Assisted with NRC Triennial Fire Protection Inspection response (DE0035).
- Assisted with the 10 CFR 50 Appendix R safe shutdown rebaseline analysis
for both single unit and multi-unit PWR plants, including preparation of calculations
to quantify the amount of time available to mitigate the effects of predetermined
faults and writing the top-level documents used as guidance by plant operators
and managers (CP0003, WE0005).
- Reconstituted the Fire Protection and 10 CFR 50 Appendix R design bases
for single unit BWR and multi-unit PWR plants (IE0206, WE0001, WE0003).
- Validated the Fire Protection and Appendix R design bases for a multi-unit
PWR plant (WE0001).
- Resolved Fire Protection / Appendix R open items for a multi-unit PWR plant
(WE0002).
- Constructed a hydraulic model of the fire protection water supply system
for a multi-unit PWR plant and analyzed the system response to particular scenarios
of interest (WE0005).
- Prepared topical DBDs for EQ and fire protection programs for a BWR plant
(IE0203, IE0206).
- Provided Appendix R Fire Protection consulting including analyses and calculations
for a two-unit PWR (WE0005).
- Prepared a fire protection system design change for the VA facility in Ann
Arbor, Michigan (VA0001).
FSAR and Other Regulatory Compliance Support
- Provided third party technical overview of a UFSAR review project at a two-unit
PWR (SC0110).
- Provided a detailed technical and regulatory compliance assessment of the
UFSAR revision prepared as part of a client's validation project (SC0111).
- Facilitated update of UFSAR through preparation of UFSAR change documents,
technical reviews, and safety evaluations (DE0014).
- Provided regulatory support to a client's Severe Accident Management Program
including assessment of the effects on Emergency Operating Procedures and UFSAR
(DE0021).
- Provided a comprehensive review and comments on the conversion of a client's
Technical Specifications to the Improved Technical Specifications format (NM0001).
- Performed regulatory compliance consulting services for a research reactor
facility (UM0001).
- Prepared safety evaluations and licensing change requests in support of
a major technical plant computer system (IPCS) modification. The new IPCS incorporated
functions of nine, previously independent, digital processor systems and interfaced
with seven additional systems. The mod also included control room and annunciator
system upgrades (DE0023).
- Developed living electronic UFSARs and companion electronic Operating License
Technical Specifications and QA Topical Report for two separate nuclear units
(NM0002).
- Expanded living licensing basis electronic document library to include the
plant SER (with Supplements) and applicable Regulatory Guides (NM0004).
Major Analyses and Engineering Evaluations
- Analyzed the safety impact of a rupture of a reactor coolant pump's cooling
coil on the operability of the component cooling water system for a PWR plant
(SC0101).
- Analyzed the conditions under which the pressurizer may be vented following
a plant shutdown to assure core cooling with loss of the decay heat removal
system for a PWR plant (SC0103).
- Performed a complex calculation of the design heat load (radiative and convective
heat transfer) for a PWR plant's biological shield cooling system (CP0001).
- Analyzed the accumulated impact of plant modifications on LOCA peak clad
temperature for a PWR plant (SC0101).
- Performed a quantitative study to determine the feasibility of a safety
injection system improvement modification for a PWR plant (SC0101).
- Performed a failure mode effects analysis (FMEA) on the high pressure safety
injection system for a PWR plant (CP0001).
- Performed a quantitative study (mini-PRA) which verified the probability
of tornado missile damage to key safe shutdown systems at a BWR plant (DE0003).
- Analyzed the impact of a high containment pressure instrument set point
change on the containment peak pressure following a main steam line break for
a PWR plant (SC0106).
- Assisted a nuclear utility in evaluating the cost and value impact of developing
a computerized cross-reference listing of design calculations (SC0103).
- Prepared a comprehensive calculational report which updated the design basis
and analyzed post-LOCA and design basis tornado operability for a BWR plant's
ultimate heat sink system, which required extensive research on ultimate heat
sink related regulatory requirements and commitments as well as analysis (DE0003).
- Prepared comprehensive design calculation revisions, engineering evaluations
of existing conditions, and Safety Evaluations incident to updating the design
bases for DC Electrical systems, the Emergency Equipment and Reactor Building
Closed Cooling Water systems, and the Control Air system for a BWR plant (DE0003).
- Provided on-site assistance at a nuclear utility in support of motor-operated-valve
(MOV) set point and thrust calculations, evaluation of test results, analysis
of signature traces, and evaluation of actual installation conditions in response
to Generic Letter 89-10 requirements (SC0105, DE0006).
- Developed and implemented a methodology for selective retention of strip
chart recorder data for a nuclear utility in order to minimize the extent of
hard copy retention (IE0202).
- Prepared engineering analyses for reactor criticality, emergency diesel
operability and room temperature on loss of HVAC (CP0003).
- Prepared four major safety-related service and cooling water system design
basis calculations (DE0007, DE0011.
- Provided Appendix R Fire Protection consulting including analyses and calculations
for a two-unit PWR (WE0005).
- Developed a hydraulic computer model of a two-unit PWR Component Cooling
Water System to verify two-unit shutdown capability for a single system (WE0005).
- Developed a hydraulic computer model of a PWR Service Water System to verify
safe shutdown capability under degraded conditions.
Quality Assurance Program Assistance
- Developed and implemented an in-house 10 CFR 50 Appendix B/NQA-1 Quality
Assurance Program, approved by four utilities, which includes heavy emphasis
on training, flexible procedural controls, performance-based audits, and feedback
mechanisms to identify opportunities for continuing improvement.
- Performed a technical audit of a nuclear utility's fire protection program
as a member of a QA audit team (TU0001).
- Developed action plans and provided technical support during a nuclear utility's
EQ regulatory inspection and subsequent programmatic audits (IE0101).
- Facilitated update of UFSAR through preparation of UFSAR change documents,
technical reviews, and safety evaluations (DE0014).
- Provided technical support to a BWR plant during an NRC audit of the MOV
Program (DE0008).
- Provided technical expertise to a plant's QA staff for internal audits (DE0013).
Management Consulting and Third Party Reviews
- Developed a comprehensive management action plan for improving the accuracy
of drawings used by a BWR plant's control room operators (IE0201).
- Assisted a management review team to evaluate and make recommendations concerning
management practices at a nuclear utility having a station on the problem plant
list (PR0001).
- Facilitated benchmarking meetings with several diverse organizations for
a nuclear utility working to upgrade its response to emergent work, comment
resolution process, preparation of engineering procedures, development of calculations
and engineering quality monitoring (SC0108).
- Conducted a procedural effectiveness review for a nuclear utility's safety
analysis (SC0107).
- Provided third party technical overview of a UFSAR review project at a two-unit
PWR (SC0110).
- Participated on Management Consulting Team which reviewed EQ Program effectiveness
at three CANDU nuclear stations (OH0001).
Design and Design Review
- Prepared conceptual design and design modification for main generator and
transformer high voltage fault relay protection system (TE0002).
- Prepared a fire protection system design change for the VA facility in Ann
Arbor, Michigan (VA0001).
- Prepared a design change/construction specification package for a state
of the art nurse call system for the VA facility in Battle Creek, Michigan (VA0002).
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