Experimental investigation on HCLL-TBS In-box LOCA

Compatibility of niobium, vanadium and P22 steel in high temperature flowing LiPb

“…IELLLO (Figure 4) is a large LiPb loop that was built at ENEA Brasimone R.C. in 2007 and mainly used to characterize components [19] and instrumentation [20], but also to investigate the In-box LOCA (Loss Of Coolant Accident) for the HCLL TBS (Helium Cooled Lithium-Lead Test Blanket System) with a test section named THALLIUM [21]. In the present campaign IELLLO was used to supply LiPb for specimen exposure at 500°C and 1.94 kg/s (0.5 m/s along the specimen rods).…”

Fusion technologies development at ENEA Brasimone Research Centre: Status and perspectives

“…Eleven tests were carried out, varying the injection duration, the injection area (9.5•10 -5 m 2 and 1.3•10 -5 m 2 ), the He pressure, the actuation of the isolation valves and the opening pressure of the rupture disk. Further details on the two experimental campaigns can be found in [28], [45].…”

Numerical Simulations with RELAP5-3D and RELAP5/mod3.3 of the Second Experimental Campaign on In-Box LOCA Transients for HCLL TBS

“…The work presented in this paper aims to assess the capability of RELAP5 to be used for LiPb/helium systems, as almost no previous activities with this code have been found from a literature review. In particular, the possibility to accurately simulate the consequences of an In-box LOCA transient is demonstrated by showing the good agreement between numerical and experimental pressure trends in different parts of the THALLIUM facility on the six injections whose results are reported in [8]. This outcome might be useful for the design or the safety of Breeding Blankets that use a combination of helium and LiPb (besides the HCLL, there are the American Dual-Coolant Lithium Lead and the Chinese Dual-functional Lithium Lead).…”

“…THALLIUM, described in detail in [6], was used to perform two experimental campaigns, whose results are reported in [7] and in [8]. The rupture of a stiffening plate of the HCLL TBS and the resulting injection of helium at high pressure were simulated.…”

“…The six transducers and their use in LiPb are better presented in [11]. Details on the experimental results, including an evaluation of the experimental uncertainties, are described in [8].…”