1. magnetic confinement - ENEA - Fusione

3. FUSION TECHNOLOGY 97
3.8 Liquid Metal Technology and
Hydrogen Effects on Materials
lithium carbonate (named LC-RT518). The XRD pattern of the final LC-RT518 was in
accordance with the ASTM JCPDS-831454 standards for monoclinic Li 2 CO 3 .
Table 3.IV - Comparison of ENEA lithium
carbonate and CEA carbonate sample
Li 2 CO 3 main CEA ENEA
characteristics sample LC-RT518
Bed density (g/cm 3 ) 0.56 0.45
True density (g/cm 3 ) 2.07 2.06
evaluated closed por. % 2.1 2.2
Spec. Surface area (m 2 /g) 0.90 0.97
Equival. Spher. Dia. (µm) 3.2 3.0
Some further characterisations
were performed on the final LC-
518 carbonate batch, such as true
density by He picnometry, and
specific surface area by nitrogen
adsorption through the classical
three-point Brunauer-Emitt-Teller
(BET) method. The results,
reported in table 3.IV, were
compared with parallel
measurements on a reference
carbonate sample from CEA.
[3.43] P. Lorenzetto,
Technical specification
for the thermal fatigue
tests of Be protected
EDA mock-ups, EFDA
/00-529, 19-11-2001
Fig. 3.38 -Mockup frame
in EDA-BETA.
Fig. 3.39 - CFC electric
radiative resistor.
3.9 Thermal-Fluidodynamics
3.9.1 Fatigue tests on six mockups of primary first-wall panel
prototype (EFDA Contracts 00/529 and 00/533)
The thermal fatigue testing of the first-wall components, i.e., six primary first-wall
mockups (EDA) and two panels, has been committed to ENEA [3.43]. The objective
is to perform thermal fatigue on beryllium armoured first-wall test sections. The
experimental campaigns will be performed at ENEA Brasimone at the CEF 1-2
thermal-hydraulic facility. For each test campaign, pairs of mockups or panels, to be
tested in parallel, are assembled inside two special vacuum vessels called EDA-BETA
(fig. 3.38) and THESIS. Special CFC electric radiative resistors (fig. 3.39) placed
between each pair of facing mockups provide heating at a nominal heat flux of 0.8
MW/m 2 with a period of 300 s. During the dwell phase, the fatigue stresses are
magnified by inlet cooling water
temperature from 120 to 20 °C.
During the tests, the thermalhydraulic
parameters (coolant,
heater and material
temperatures, water flow rate
and pressure) are also measured.
In 2001, the EDA-BEDA vacuum
chamber was appropriately
modified to provide the mockup
cooling and the electrical
feedthroughs. Preliminary
testing of the modified EDA-
BETA facility was also
performed. Six mockups were
delivered to ENEA Brasimone.
They are armoured with Be
grade S65C tiles with different
dimensions and thickness (5 or
10 mm). The heatsink is made of
DS-Cu (Glidcop-Al25) joined to a
stainless steel (AISI316 L) back
plate, both provided with water
cooling channels. At the end of