Conveners
Tritium Fuel Cycle Engineering System Design
- Christian Day (Karlsruhe Institute of Technology)
Tritium Fuel Cycle Engineering System Design
- Christian Day (Karlsruhe Institute of Technology)
Tritium Fuel Cycle Engineering System Design
- Christian Day (Karlsruhe Institute of Technology)
Tritium Fuel Cycle Engineering System Design
- Christian Day (Karlsruhe Institute of Technology)
A self-sufficient fuel cycle is a significant contributor to enable commercial fusion energy. It also puts additional requirements on existing fuel cycle concepts. Driven by the need to reduce the tritium inventory in the systems to an absolute minimum, the work package TFV (Tritium – Matter Injection – Vacuum) of the European Fusion Programme has developed a three-loop fuel cycle...
A future fusion reactor is anticipated to mainly utilize pellet injection for particle fuelling. Pellets are mm-sized bodies formed from solid hydrogen fuel. Undoubtedly, delivering an adequate fuel amount with an isotope mixture adjusted to establish the optimum deuterium:tritium composition expected in the vicinity of D:T = 1:1 to the plasma core has to lay the foundation for any pellet...
The divertor system of a fusion device is always a compromise which has to meet power exhaust, particle exhaust and neutron shielding requirements at the same time. The design space of the tokamak particle exhaust function results from a number of requirements, such as geometrical parameters (for instance the divertor cassette configuration, and the position of the pumping port relative to the...
Present and planned fusion machines rely heavily on the use of neutral beam injectors, to provide plasma heating and current drive. In the case of large experiment, like ITER and beyond, the atoms injected in the plasma require a high energy (>500 keV) to penetrate the dense and large plasma and deliver the power at plasma center. This calls for the use of negative ions as precursors of the...
The deuterium/tritium fuel cycle for fusion reactors is linked to how the reactor is designed and operated. Sometimes these links are obvious such as the choice of seeding gases and burn fraction, though others are subtle or not obvious. This paper presents an introduction to the key considerations stemming from physics decisions that impact the design and operation of the fuel cycle.
A future fusion reactor based on the tokamak concept in particular will need to employ methods to mitigate both edge localized modes (ELMs) and disruptions. Both of these unwanted plasma events can lead to high heat fluxes that can damage internal plasma facing components. The mitigation of these events in the plasma relies on the injection of material into the plasma to trigger a plasma...
There is a strong relationship between fusion machine physics characteristics and the associated fuel cycle systems. As these grow in size and features, so may the facility hazards and the need for hazard mitigation. This talk will introduce the consideration of the need for hazard mitigation alongside the physics/fuel cycle relationship.
