Current design of the European TBM systems and implications on DEMO breeding blanket

Thermo-hydraulic analysis of PbLi ancillary system of WCLL TBM undergoing in-box LOCA

“…A simplified layout of the system is reported in Figure 1. The PbLi loop [6] includes the following components: the Tritium Extraction Unit (TEU), the Heater (HT), the Cooler (HX), the Cold Trap (CT), the Storage/Recirculation Tank (ST), the Circulation Pump (PL1) and the Relief Tank (RT). Reading the layout from the left to the right side the first component is the WCLL TBM.…”

“…According to [6], during normal operation the PbLi flows out the TBM entering in the related ancillary system with a temperature of about 330°C and a nominal mass flow rate of 0.29 Kg/s. By following the pipeline from P01 to P02 the alloy reaches the heater where the temperature is increased up to 450°C and then enters inside the TEU.…”

“…The initial conditions imposed in the three models and referring to [6] are:  A PbLi mass flow rate of 0.29 Kg/s is imposed through the pump PL1 by applying a linear increase in 100s. Inside the CT, the mass flow is set equal to 0.1 Kg/s by regulating the opening area of the downstream and upstream motor valves.…”

TBM/MTM for HTS-FNSF: An Innovative Testing Strategy to Qualify/Validate Fusion Technologies for U.S. DEMO

“…In the 2000s, the U.S. proposed a DCLL TBM for ITER [33]. A number of deliverables were produced, addressing the different physical phenomena in ITER TBMs and how the data could be extrapolated to DEMO conditions [34][35][36]. Other related activities focused on the development of sensors for ITER TBMs and the associated strategies [37].…”

Experimental and RELAP5-3D results on IELLLO (Integrated European Lead Lithium LOop) operation

“…This activity was conceived to analyze the behavior of the facility and its main components. Some of these components are candidates as main or back-up solutions for the LLE loop of the HCLL TBS [1]. Moreover, the ability to run a large LLE loop, together with the lessons learned, will be useful for the design and operation of the final LLE loop of ITER.…”