Annual report 2009 - Siempelkamp

Services: ageing management for safety and lifetime
We also offer comprehensive engineering services in the fi elds of strength calculations, plant inspections in nuclear power, chemical
and petrochemical plants as well as material and component testing. By means of the Finite Element Method (FEM) the group
specializing in strength calculations contributes to plant safety and the life span assessment of building elements and components
primarily from nuclear facilities but also from conventional power plants as well as chemical and petrochemical plants. Here, we
simulate real and hypothetical situations in order to supply customers with a solid basis to make the right decision between the
confl icting factors of safety and cost. We carry out qualifi ed safety cases as the basis for an effi cient ageing management. Our service
includes even more because the results from stress and fatigue analyses as well as integrity analyses can be verifi ed through a
combination with material and component testing.
The advantage for our customers: The results from numerical simulations of real or model tests on building elements in a testing
laboratory can be visually displayed and are supported by measured data and can be viewed by the operator and surveying
organization.
Strength calculations in 2009: 40 new projects
For E.ON-Kernkraftwerke Grafenrheinfeld, Grohnde and Unterweser
we carried out 20 evaluations in the area of stress and
fatigue assessment for relevant components on the basis of FE
analyses. These projects mainly included the implementation of
temperature measurements on the basis of accepted thermocouples
installed on pipes under thermo-hydraulic general conditions
for the thermal analysis under load. The components of
the spray and VAL line, fi ttings, and valves, sump screens as well
as casings were also arithmetically evaluated.
Within the Siempelkamp Group twelve orders were completed.
These projects included strength evaluations and thermo-mechanical
analyses on Core Catcher structures, lifting equipment and
other steel structure components. To name an example, we completed
a strength evaluation for the reactor pressure vessel head
lifting equipment for the EPRTM reactor Flamanville 3.
In the non-nuclear sector we provided the strength evaluation
for a novel reactor cooling shield construction for Siemens Fuel
Gasifi cation Technology, Freiberg, Germany.
Inspection works at a refi nery Inspection on the steel supporting structure inside the dam