Services from a single source
Customised services to meet your challenges
Through the wealth of experience we have gained during the last thirty years from numerous projects within the nuclear industry, and with a team of experienced employees, DAHER NUCLEAR TECHNOLOGIES GmbH is capable of solving even complex and difficult tasks
We will develop a specific solution for each of your requirements.
IRRADIATED AND OTHER RADIOACTIVE MATERIALS
Transportation of radioactive waste and heavy components as a complete logistics solution.
Transportation of radioactive waste
Our Irradiated and Other Radioactive Materials business unit offers not only pure transportation services, but also complete logistics solutions that take ecological and economic aspects into account
We work constantly with our customers on optimizing the transportation of their goods.
Based on these considerations, a “multi-purpose trailer” has been developed, designed and manufactured in cooperation with a customer, with which all types of Konrad container and also 20′ and 40 containers can be transported by road.
Transportation of other radioactive materials
Our experts in the BSR transport other radioactive materials, contaminated service equipment, etc., worldwide, using all carriers, and are supported in the process by contract partners in Russia, Egypt, Slovenia, Hungary, China and others.
Obtaining transport permits in the countries concerned in the transport movement is just as much a part of our range of services as stowage, transport security and undertaking packaging duties
Transportation of heavy radioactive
Since 1995, unique experience has been gained in the transportation of radioactive, wide and high loads and heavy components by all modes of transport (truck, rail, inland waterway and seagoing vessels).
The transportation of a complete reactor pressure vessel by rail and the transportation of steam generators by road, rail, inland waterway and seagoing vessel is particularly worthy of mention here.
Just last year, contaminated and activated parts of an accelerator were transported from Switzerland to China by heavy haulage truck and seagoing vessel.
Category I and II secure transport movements are managed exclusively by DAHER NUCLEAR TECHNOLOGIES GmbH in Germany.
The security and escort vehicles required for this, and the Transport Operations Center required for such transport movements, are kept at our customer’s disposal.
NUCLEAR FUELS, ROAD AND RAIL
With its NUCLEAR FUEL LOGISTICS DEPARTMENT, DAHER NUCLEAR TECHNOLOGIES GmbH. is a leader in the transportation and services business.
DAHER NUCLEAR TECHNOLOGIES GmbH Nuclear Fuels Rail Logistics Department (BES) is a leading provider of transportation and logistics services in the nuclear fuel logistics business
The main focus is on major projects, such as managing secure transport movements with spent fuel elements from power and research reactors, and returning high and medium-level waste from reprocessing plants to the German interim storage locations (ZL) using a trimodal transportation system.
In addition, the BES portfolio includes the management of rail transportation of various uranium products in the uranium enrichment field (U3O8, UF6).
Together with our Group member, heavy load haulier DAHER PROJECTS GmbH, the Nuclear Fuels Rail Logistics Department has done pioneering work with the concepts developed for the secure transport movements to the former reprocessing plant and to the German interim storage locations (e.g. HAW transport movements to Gorleben and moving fuel elements from Obrigheim nuclear power station to interim storage at Neckarwestheim). We are still very proud of this today. We are still very proud of this today.
NON-IRRADIATED NUCLEAR FUELS
Organization and management of worldwide front-end transportation of non-irradiated radioactive material
With thirty years of experience, the KBU Business Unit organizes the worldwide transportation of irradiated radioactive material in the form of
- yellow cake
- Uranium hexafluoride (UF6)
- Uranium oxide powder and pellets (UO2)
- Fuel Elements
and is thus an important service provider on the worldwide nuclear fuels circuit, this of course with the aim of optimising transport routes, including obtaining or providing the necessary international transport permits.
With an annual transport volume of approximately 100 security category III deliveries, the zero-error principle is always our top priority. A well-trained team of experts with many years of experience is always at your disposal here.
With our own fleet, branch offices and representatives, we offer our customers a unique complete service package.
It is our aim, to always improve the status quo through innovation. Thus we try to offer new and efficient transportation solutions to every challenge, every day.
Besides the actual transport planning and management itself, the company’s range of services also includes the leasing of our own
- 30 “cylinders
- Protective containers (UX30 + DN 30)
- 20″ flat Rack Containers
to the company’s range of services.
Our engineers create container and packaging concepts, manage the official approvals procedures and accompany the manufacture of the containers.
DESIGN AND ACCEPTANCE OF CONTAINERS
Experienced engineers are available for the development of new container concepts, for the acceptance procedure and for their manufacture.
Containers for the transportation of radioactive materials have to go through a complex approval process in order to ensure that even if there is an accident during transportation, there can be no danger to people and the environment.
Planning and design
DAHER NUCLEAR TECHNOLOGIES GmbH has a multi-disciplinary team of experts for the development and authorization of new container concepts and for the maintenance of existing container approvals.
Important components of container development, besides the aforementioned security analyses, are the design expertise and the creation of production drawings by our technical draughtsmen, using current design tools (3D-CAD, rendering).
PERFORMANCE RANGE: PLANNING & DESIGN BU CALCULATIONS
1. Structural mechanical calculations
1.1 Dynamic and quasi-static calculations using LS-DYNA
- Calculations using LS-DYNA
- Calculation of drop tests
- Recalculation of material tests
- Contact modelling
- Modelling of bolted and welded joints to meet requirements
- Strain rate-dependent material
- Material failures
- Coupled thermal-mechanical analyses
1.2 Static calculations using ANSYS Mechanical
- Linear and non-linear
- Contact problems
- Detailed calculations based on submodels
- Detailed analysis of welds based on the structural stress andnotch stress concept
- Coupled thermal-mechanical analyses
1.3 Static strength verification and fatigue strength and fatigue life verification in accordance with the FKM guideline
1.4 Bolt design according to VDI 2230
1.5 Verifications for pressure vessels in accordance with the AD 2000 leaflets
1.6 Verifications for load securing concepts in accordance with DIN EN 12195 and VDI 2700
2. Thermal calculations
2.1 Stationary and transient calculations using ANSYS Mechanical
- Simulation of combustion processes taking into account phase changes and heat generation
- Taking into consideration heat conduction, convection and radiation
- Thermal contact modelling
- Derivation of convection boundary conditions based on the VDI heat atlas
3. Nuclear safety analyses
3.1 Calculations using the SCALE program package
- Determining dose rates for neutron and gamma sources
- Criticality safety analyses
- Burnup computation for determining source terms and composition of fuel
3.2 Release analyses according to ISO 12807
DNT STORAGE SERVICE
DAHER NUCLEAR TECHNOLOGIES GmbH is licensed in accordance with the Radiation Protection Ordinance to handle and store low-level radioactive materials in in two storage buildings at the Hanau site
A third storage building is currently in the process of being approved.
At the Hanau site, a total of 2000m² storage space is available in two storage buildings for low-level radioactive, packaged waste.
A § 7 radiation protection permit exists for both storage buildings (unlimited). In both buildings, cranes are installed for handling packaging (mostly standardizedcontainers).
A building application has been submitted for a further building with an additional 2000m² of storage space; the documents for the approval according to radiation protection are to a large extent complete.
In addition, the site includes the possibility to store e.g. radioactively contaminated plant and equipment in approved 20’ containers. These outdoor storage buildings also have radiation protection permits according to § 7. Mobile cranes are used for handling in the outdoor storage buildings.
DNT CONTAINER SERVICE
DAHER NUCLEAR TECHNOLOGIES GmbH offers maintenance, testing, repair and service of accessories for containers from the entire front-end area.
DAHER NUCLEAR TECHNOLOGIES GmbH has its own fleet of internationally approved transport containers with the necessary accessories for handling.
Where required, additional transport containers can be made available to our customers via existing usage agreements.