LUCE 331 | Page 32

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."