gianluca benamati

Gianluca Benamati

The Experimental Engineering SectionUTS Advanced Physical Technologies

ENVIRONMENT :

ENERGY:

UTS Principal Activities :

Fusion Technology

Accelerator Driven System development

ICE core drilling in Antarctica

Radio-chemistry laboratory

Solar energy studies.

Remote maintenance

UTS Competencies :

Materials for high temperature applications

Materials corrosion and protection (liquid metals, water, gas)

Component development and testing

Advanced joining techniques

Liquid metal technologies

Fusion Technology project

Remote Maintenance

• Formal operations with the ITER Duct Equipment in the DTP

• Final preparations and actual installation of the CEA/Cybernetix MAESTRO hydraulic servo-manipulator in the DTP.

• Formal operations for the Second Cassette Carrier system in the DTP using an integrated operator environment.

Divertor Test Platform

Maestro master arm

Maestro operator

Maestro slave arm

CTM

Graphic simulator Master & slave control systems

Maestro master arm

Maestro operator

Maestro slave arm

CTM

Graphic simulator Master & slave control systems

Old cassette mock-up

• Final operational trials with the multilink cassette-PFC attachment method in the DRP (and report)

• Technological tests (mechanical and

high-current) on the multilink system (and report)

Divertor Refurbishment Platform

Remote Maintenance


Vacuum chamber and Shield

Friction tests


Friction Coefficient Fiberslip B40Vacuum value = 4.9 X 10-6 mbar

p = 100 MPa T° = 77K

0

0.02

0.04

0.06

0.08

0.1

0.12

0.14

0.16

0.18

0 5 10 15 20 25 30 35 40

Cycles

Fri

cti

on

co

eff

icie

nt

Fabrication

of a first wall panel



Testing equipment:

•Press machine•Nitrogen cooling tank•Stress and displacement measurement system•Temperature monitoring system•Computerised process and data acquisition system


Mechanical testing of the shear keys to be used in the magnet system under cyclic shear loading conditions at cryogenic temperature


Pb-BI FLOW RATE = 4 m3/h

Tmax = 500 °C

PRESSURE = 4 bar

ADS project

Compatibility test in flowing LBE with a low oxygen activity

• Corrosion tests

• Tensile tests (after liquid metal exposure)

LECOR LOOP

1 2 3

Oxygen probe

Heater(80 Kw)

Flowmeter BY

-PA

SSCooling unit

Economiser

Pump

Test sections1 2 3

Oxygen probe

Heater(80 Kw)

Flowmeter BY

-PA

SSCooling unit

Economiser

Pump

Test sections

Compatibility test in flowing LBE with a low oxygen activity

ADS project

Corrosion tests results Tensile tests results

Engineering strain [mm/mm]

0.00 0.05 0.10 0.15 0.20 0.25

Eng

inee

ring

str

ess

[MPa

]

0

100

200

300

400

500

600

700

T91 steel as receivedT91 steel exposed to PbBi for 1500 h

• AISI 316L exhibited mainly a Ni depletion

• T91 shows an uniform attack

• Tensile properties of AISI 316L seem to be unaffected by corrosion

• T91 shows a decrease of ductility

T91

LECOR 400°C 4500h

T91

LECOR 400°C 4500h

PROGETTO ADS

ADS project

Compatibility test in flowing LBE with a high oxygen activity

CHEOPE LOOP

• Corrosion tests

• Oxygen control techniques

AISI 316L

CHEOPE 400°C 1500h

ADS project

• Both AISI 316L and T91 exhibited weight gains, and an oxide scale formed on the surface of specimens

• This oxide layer prevented further attack induced by dissolution

• T91 shows an oxide scale thicker and more uniform than AISI 316L

• Sensors for oxygen activity measurement have been qualified

Corrosion tests results Oxygen control techniques

Compatibility test in flowing LBE with a high oxygen activity

T91

CHEOPE 400°C 1500h

condizionamento sonda CHEOPE

300

350

400

450

500

550

600

5000,0 5500,0 6000,0 6500,0 7000,0 7500,0 8000,0 8500,0 9000,0 9500,0

minuti

300

350

400

450

500

550

[°C]

[mV]

ADS project

Large scale experiments: CIRCE facility

• Investigation of the hydraulic, chemical and mechanical issues related to the development of the LBE - cooled XADS in a pool configuration

Main Vessel (S100) characteristics Outsider diameter: 1200 mm Wall thickness: 15 mm Height: 8500 mm LBE inventory: 70 tons Temperature range: 200 – 550 °C Electric heaters (planned) for core power simulation: 1 MW

• Thermal hydraulic data base creation

ADS project

Qualification and testing of CIRCE instrumentation

The obtained information allowed to calibrate the CIRCE measuring system and to verify the accuracy and repeatability of the measurements.

• The performance of the CIRCE pressure measurement system have been checked on a small device in stagnant condition

ADS project

Large scale experiments: calibration of a flow meter

• Tests to calibrate the Venturi-Nozzle flow meter that will be used during the enhanced circulation test have been performed

First analysis on the obtained results show a good agreement with the theoretical curve supplied by the constructor

Curva di calibrazione del Venturi a 200 °C

0

5000

10000

15000

20000

25000

0 50 100 150 200 250 300 350

Portata di lega eutettica [Kg/s]

P [P

a]

Curva fornita da costruttore

Sperimentale - prima serie

Sperimentale - seconda serie

- water injection pressure: 60, 100, 155 bar

- water sub-cooling: 30, 50 °C

- liquid metal temperature: 330, 350 °C

Liquid metal and hydrogen technologies

Lead lithium / water interaction, activity on LIFUS 5 plant

LIFUS 5 FACILITY

Temperature evolution in the upper part of the reaction vessel: comparison

between tests n. 3 and n. 4 on LIFUS 5

Pressure evolution in the reaction and expansion vessels: comparison

between test n. 3 and n. 4 on LIFUS 5

Lead lithium / water interaction, activity on LIFUS 5 plant


300

350

400

450

500

550

600

650

0 5000 10000 15000 20000 25000 30000

time [ms]

tem

pera

ture

[°C

]

TC1 test n.4

TC1 test n.3

0

20

40

60

80

100

120

140

160

0 200 400 600 800 1000 1200 1400 1600 1800 2000

time [ms]p

ressu

re [

bar]

PT1 test n.4

PT2 test n.4

PT1 test n.3

PT2 test n.3

Test n.3:- water temperature 295 °C- liquid metal temperature 330 °C

Test n.4:- water temperature 325 °C- liquid metal temperature 330 °C

Qualification of tritium permeation barriers in Pb-17Li

- Temperature range 250-500°C- Hydrogen or Deuterium pressure range 1-1000 mbar- Permeation measurements in gas phase or in stagnant molten Pb-17Li- Gas bubbling through the liquid or flowing on the surface- Two specimens in parallel ( tube -shape)

Operating conditions


VIVALDI

Permeability of HD coated specimen in Pb-17Li

Aluminised coating

Extensive experimental campaign on aluminised coatings

• Specimens produced with Hot Dipping Technique (FZK) and CVD (CEA) have been tested.

Qualification of tritium permeation barriers in Pb-17Li


• PRF in gas phase for tubular specimens is lower than for disk samples.

• PRF of the same specimen strongly decreases in Pb-17Li .

Operating conditions:

-Temperature range 250-500°C

-Pb-17Li thickness precisely controlled

- Hydrogen or Deuterium pressure range 1-1000 mbar

H&D Diffusivity and Permeability through Pb-17Li

Calibration of the device LEDI has been performed;

Tests at 400 and 500 °C were carried out;

Modelling of the hydrogen transport phenomena in Pb-17Li was improved

LEDI


Operating Conditions:

- Temperature range 150°C-800°C (up-graded version)

- Hydrogen or deuterium pressure range 1-1000 mbar

Hydrogen permeation through materials

• W,W-La, Re specimens

• Steels ( MANET, F 82H , Eurofer 97)

• Coated materials


Test Section

Solar thermal energy project

Materials compatibility studies in molten nitrates

• Stagnant compatibility tests on austenitic and ferritic steels (AISI steels and ASTM steel)

The corrosion mechanism have been investigated

Corrosion rates, resistance of welds and stress corrosion behaviour have been evaluated

AISI 321 550°C 6000 hs weldedAISI 321 550°C 6000 hs unwelded

EPICA project

Ice core drilling in Antarctica

• The main objective of EEuropiean PProject for IIce CCoring in AAntarctica is to drill two new deep ice cores in Antarctica to obtain full documentation of the climatic and atmospheric record changes in the past 500,000 years

The first core was drilled at Dome Concordia in the Indian Ocean sector of the East Antarctic plateau. The perforation, started in 1997, reached the depth of -3201.03 m in January 2003.

The control of the Epica drill at Dome-C is made by an electronic system that has been developed by the ENEA people of Brasimone Research Center.

EPICA project

Ice core drilling in Antarctica

The second core was drilled in Dronning Maud Land, in the Atlantic sector of Antarctica. The perforation, started in 2001, reached the depth of -1564.80 m in January 2003.

CPU Module

The Ice Core Inside the Tube

Drilling Operation

It is made of four modules: a communication and power module, a CPU module, a driver motor module and a motor module.

FIS ING - BrasimoneFIS ING - Brasimone

THE ENVIRONMENTAL RADIOMETRY LABORATORY OF BRASIMONE

http://www.brasimone.enea.it/LRA-LAB1.htm



FIS ING - BrasimoneFIS ING - Brasimone

THE ENVIRONMENTAL RADIOMETRY LABORATORY OF C. R. ENEA OF BRASIMONE, WORKS FROM OVER 15 YEARS, INTO

THE FIELDS OF: - measure of naturals and home made environmental radiopollutants

- radiometrical analisys of foods and environmental matrices- report emission for Import/Export trade certifications

gianluca benamati

Documents