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

Venturini, Alessandro; Utili, Marco; Gabriele, Anna Maria; Ricapito, I.; Malavasi, A.; Forgione, Nicola

doi:10.1016/j.fusengdes.2017.04.001

Cited by 11 publications

(7 citation statements)

References 8 publications

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“…The decreasing trend of the efficiency at higher flow rate was already highlighted by the experimental campaign of 2015 [2], but the use of the thermal flow meter allowed to reach lower flow rates, which are more relevant towards the design of the WCLL TBS and ancillary systems. Nevertheless, some perturbations occurred at small flow rates (below 1 kg/s) for two reasons: the lower working limit of TFM caused some spurious measurements; the power given to LLE by the thermal flow meter influenced the temperature at the inlet of the cold side of the economizer.…”

Section: Performances Of the Economizermentioning

confidence: 82%

“…The new flow meters allowed to evaluate the pressure drops and the performances of the economizer and of the air cooler at smaller flow rate than those used in [2], when only the Vortex was installed in IELLLO. The flow rates below 1 kg/s are most relevant towards the design of the HCLL or WCLL TBS.…”

Section: Discussionmentioning

confidence: 99%

“…As commercial instrumentation is not currently produced for LLE, R&D activities are required in order to select and adapt instruments able to work in flowing LLE, allowing to monitor the required parameters (temperature, pressure, mass flow rate, level, tritium concentration, impurities, etc.). IELLLO (Integrated European Lead Lithium LOop) facility was used in the past to characterize the performances of a Vortex flow meter and of absolute pressure transducers [2]. Then, the absolute pressure transducers were tested at higher pressures in the experimental campaigns that aimed to simulate the consequences of an In-box LOCA for the HCLL TBS (Helium Cooled Lithium-Lead Test Blanket System) [3].…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Experimental Qualification of New Instrumentation for Lead-Lithium Eutectic in IELLLO Facility

Venturini

Papa

Utili

et al. 2020

Fusion Engineering and Design

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The experimental facility IELLLO was installed in ENEA Brasimone R.C. in 2007, aiming to support the design of liquid Test Blanket Modules that will be installed in ITER and to contribute to the development of Lead-Lithium Eutectic (LLE) technologies. IELLLO has been recently upgraded by installing instrumentation relevant for ITER application. Differential pressure transducers, a Coriolis and a thermal mass flow meters were installed in the facility. An experimental campaign was planned, setting two objectives. The first objective was to qualify the instrumentation for flowing LLE The installation of a differential pressure transducer across each flow meter made also possible to characterize the pressure drops across these instruments. The second objective of this activity was to improve the results of the 2015 campaign by analyzing the performances of the main components of the loop at lower mass flow rates (namely 0.5-1.2 kg/s) and by quantifying the pressure drops across the main components. The investigated flow rates were chosen to be relevant for the LLE loop of the WCLL TBS (Water Cooled Lead-Lithium Test Blanket System). This work presents the results of the experimental campaign, paying particular attention to underline the lessons learned on how to correctly operate instrumentation for LLE.

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Section: Performances Of the Economizermentioning

confidence: 82%

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Experimental Qualification of New Instrumentation for Lead-Lithium Eutectic in IELLLO Facility

Venturini

Papa

Utili

et al. 2020

Fusion Engineering and Design

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“…Two injection valves with different flow area and opening times were used in the experimental campaigns. Helium for the injection was supplied by the facility HeFUS3 (Helium for FUSion 3, [9,10]), at 400 • C and up to 80 bar, while LiPb was loaded in THALLIUM by means of the IELLLO (Integrated European Lead Lithium LOop, [11,12]) facility.…”

Section: Introductionmentioning

confidence: 99%

“…Including the error bars in the following figures would completely jeopardize their readability and thus error bars were not shown in the plots. 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].…”

mentioning

confidence: 99%

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

2021

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In-box LOCA was identified as one of the worst accidental scenarios for the HCLL TBS (Helium Cooled Lithium-Lead Test Blanket System). Aiming to experimentally analyze the consequences of this transient, ENEA designed and built THALLIUM (Test HAmmer in Lead LIthiUM), a facility that reproduces the LiPb loop of the HCLL TBS. Two experimental campaigns were carried out by simulating the rupture of a stiffening plate and the related helium injection in the LiPb loop. The obtained experimental data were used to check the capabilities of RELAP5 system code to reproduce the pressure wave propagation that follows this accident. The first simulations were made with RELAP5-3D using LBE (Lead–Bismuth Eutectic) as a system fluid, as the thermophysical properties of LiPb are tabulated only up to a maximum value of 40 bar in this version of the code. Then, LiPb properties were implemented in RELAP5/mod3.3, after selecting the proper correlations from a literature review. This work summarizes the numerical simulations of the second experimental campaign, which was simulated with both versions of the code. The simulations highlight that the code is able to accurately reproduce the experimental results and that RELAP5-3D is slightly more precise than RELAP5/mod3.3 in predicting the pressure trends.

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

Tarantino

Martelli

Nevo

et al. 2020

Fusion Engineering and Design

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

Cited by 11 publications

References 8 publications

Experimental Qualification of New Instrumentation for Lead-Lithium Eutectic in IELLLO Facility

Experimental Qualification of New Instrumentation for Lead-Lithium Eutectic in IELLLO Facility

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

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

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