Modello digitale di progetto per
la nuova illuminazione / Digital model
for the new lighting project
• not to use the lower running beam opposite
the arena steps (as instead in the existing
system), to eliminate unnecessary glare to
the public and the cameras;
• raise the vertical component in the stretch
of track near the steps to optimize the vision
of the public and the cameras.
The layout and positioning of the Sylbay Gen 2
have been carefully optimized to achieve
maximum uniformity; the number of luminaires
installed on the beam between two arches
varies from 1 to 5, depending on the area and
the installation height.Despite these variations
in number, an orderly arrangement of the
luminaires was made with precise alignments
between the various groups. This choice does
not depend on lighting requirements, but aims
to cleanly integrate the lighting signs into the
formal rhythms of the structure.
In the two photo-finish areas, however, 1+2
more luminaires were also provided in order to
have all values over 1,000 lux (1,143 average lux
30
LUCE 331 / PROGETTARE LA LUCE
on the finish line of the 60 m running track,
and 1,228 average lux on the finish line of the
200 m ring), even in anticipation of uses with
general lighting lower than 100%.
The implementation of the project, followed
by industrial expert Simone Pagliaretta and
engineer Paolo Moreschini of CPM Gestioni
Termiche S.r.l., provided, for each single light
point, the equipment of a DALI regulator
connected to a UVAX NX80 Series node, in turn
interfaced with the UVAX SERIES CA13 / LX12
concentrator. UVAX is a company with over 10
years of experience in the development of
advanced technological solutions, focused on
the Smart Cities, Smart Grid, and IoT market.
The control system made it possible to create
"a centralized point-to-point system, capable
of managing both the luminous flux emitted
by the system as a whole, and of the single
light point." 12 lighting scenarios have been
prepared, which can be selected from the
control station (PC) to meet all users' needs.
During the installation phase of the projectors,
in order to prevent damage to the surface of
the running track, the CPM professional experts
positioned wooden supports at the base of the
stabilizers to protect the transit and parking
areas of the elevating platforms. Given the
particular type of intervention, the choice
of means for the construction of the work was
assessed on the basis of both the technical
construction and structural characteristics of
the overlying ceiling. The main difficulty they
faced was to work at height as the work was
carried out at minimum heights of 10 and up
to 18 meters.
At the end of the redevelopment works, with
the new set-up an energy saving of about 54%
was achieved, for the same number of hours
of operation.
The use of the UVAX remote control system then
allowed to obtain additional energy savings
of 30%. The Savings Table (Fig. 1) indicates that
the new system saves 102850 kWh of electricity
per year, corresponding to 19.23 toe (tons of
oil equivalent) and the non-emission of 36.10
tons/year of CO 2 .
From the images made by Ulisse Mariangeli,
data processing and timekeeping specialist at
Microplus Timing (Photofinish Measurements),
of which 2 are of the 60 m straight finish line
and 2 of the 200 m ring finish line, we can see
the clear improvement between the pre- and
the post- intervention at the Palaindoor
lighting system. Mariangeli said that "in the
images referable to the post-intervention, the
50 Hz bands given by the old lighting system,
which gave a rather annoying artefact in the
evaluation of the athletes' arrivals, are no
longer visible. A sharper image is clearly
synonymous with greater precision and speed
in the chronometric activity carried out
in the numerous sports competitions held
in the structure in question."