AES
provides rapid
response to nuclear power plant emergent issues that
require timely and immediate resolution. Examples of emergent issues
are Prairie Island’s Transformer Flood Evaluation Issue (2006),
Kewaunee’s Forced Outages (05/06 supporting HELB, tornado analysis
& internal flooding), Prairie Island and Point Beach Reactor Vessel
Head Load Drop Analysis (2005), Fitzpatrick’s 2005 Torus Crack(FEA
stress evaluation for fracture mechanics evaluation) and evaluation of
Prairie Island Containment Fan Coil Unit cooling system to remove coils
from service due to unrepairable leaks.
AES’s plant modification services span the full spectrum of engineering
services for plant modifications. Our services start with performance
of conceptual design studies, through detailed engineering design
development, modification package development, 50.59 screening
preparation and 50.59 Evaluations. We also provide on site engineering
support of
modification installation and office engineering backup for field
changes. Recent major modifications include the Containment Fan
Coil Unit replacements at Prairie Island, the Containment Spray
Isolation Valve replacements at Palisades, and Containment Sump Screens
at Turkey Point and St. Lucie.
AES
has the capabilities and experience performing both simple and complex
engineering and technical evaluations. Our staff brings strong Civil,
Structural, Mechanical engineering, and Plant System knowledge along
with an operational and licensing background. Our expertise covers but
is not limited to seismic analyses of structures / components including
main control boards, fuelracks, piping, mechanical and electrical
equipment and cable traysupports; erosion/flow accelerated corrosion
(FAC) of piping; spare parts obsolescence, design of block
walls, core drilling evaluation of concrete/block walls, containment
sump designs / evaluations, and operability assessments of system,
structures, and components (SSCs).
AES
brings extensive knowledge and experience in plant operations, which is
an integral part of understanding and implementing engineering
programs. Some of our staff were previously employed by nuclear
utilities, which gives them a leading edge in knowing what is integral
to an effective engineering program. Design Basis Documentation (DBD)
Reviews / Validations, is one of our strengths. Other examples include
Safety System Design Inspections (SSDIs), evaluation of existing
engineering and operations procedures, equipment reliability /
preventive maintenance
optimization, Maintenance Rulle, Appendix R, Gas Accumulation
Management,
Flow Accelerate Corrosion (FAC), and development of engineering
standards and design specifications.
Our
knowledge and experience extends to the overall operation of the plant
in the design of PWR and BWR nuclear plants. This includes support and
participation in such activities as self/integrated assessments, system
/ component trending, and plant safety, and operational
assessments. We have an in-depth knowledge and an understanding of the
interface between the system’s design, operation, and maintenance
requirements of systems, structures, and components. Examples include
plant performance improvement initiatives in
engineering, operations, and maintenance; plant restart activities;
equipment reliability improvements including cost efficiencies; and
review of system engineering programs for effectiveness
